How to use nextTick method in Best

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index.js

Source:index.js Github

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...63 fuseops64 .readdir(path)65 .then(response => {66 const { contents, contexts } = response;67 return process.nextTick(cb, 0, contents /​*contexts*/​);68 })69 .catch(err => {70 if (err instanceof FSError) {71 return process.nextTick(cb, err.errno);72 } else {73 return process.nextTick(cb, Fuse.EFAULT);74 }75 /​/​ /​/​console.log(err)76 /​/​ return process.nextTick(cb, Fuse.ENOENT)77 });78 },79 getattr: (path, cb) => {80 /​/​console.log('I>getattr', path);81 fuseops82 .getattr(path)83 .then(response => {84 /​/​ /​/​console.log(response)85 return process.nextTick(cb, 0, response);86 })87 .catch(err => {88 /​/​console.log('I>getattr error',path);89 if (err instanceof FSError) {90 return process.nextTick(cb, err.errno);91 } else {92 return process.nextTick(cb, Fuse.EFAULT);93 }94 });95 },96 open: (path, flags, cb) => {97 /​/​console.log('I>open(%s, %d)', path, flags);98 fuseops99 .open(path, flags)100 .then(response => {101 /​/​console.log('I>opened with fd',response)102 return process.nextTick(cb, 0, response);103 })104 .catch(err => {105 if (err instanceof FSError) {106 return process.nextTick(cb, err.errno);107 } else {108 return process.nextTick(cb, Fuse.EFAULT);109 }110 });111 },112 release: (path, fd, cb) => {113 /​/​console.log('I>close(%s, %d)', path, fd);114 fuseops115 .close(path, fd)116 .then(() => {117 return process.nextTick(cb, 0);118 })119 .catch(err => {120 if (err instanceof FSError) {121 return process.nextTick(cb, err.errno);122 } else {123 return process.nextTick(cb, Fuse.EFAULT);124 }125 });126 },127 chmod: (path, mode, cb) => {128 /​/​console.log('I>chmod(%s, %d)', path, mode);129 fuseops130 .chmod(path, mode)131 .then(() => {132 return process.nextTick(cb, 0);133 })134 .catch(err => {135 if (err instanceof FSError) {136 return process.nextTick(cb, err.errno);137 } else {138 return process.nextTick(cb, Fuse.EFAULT);139 }140 });141 },142 read: (path, fd, buf, len, pos, cb) => {143 console.log('I>read(%s,%d)', path, fd,len,pos);144 fuseops145 .read(path, fd, buf, len, pos)146 .then(e => {147 return process.nextTick(cb, e);148 })149 .catch(err => {150 if (err instanceof FSError) {151 return process.nextTick(cb, err.errno);152 } else {153 return process.nextTick(cb, Fuse.EFAULT);154 }155 });156 },157 create: (path, mode, cb) => {158 /​/​console.log('I>create(%s,%d)', path, mode);159 fuseops160 .create(path, mode)161 .then((val) => {162 return process.nextTick(cb, 0,val);163 })164 .catch(err => {165 /​/​console.log('Create threw an error')166 if (err instanceof FSError) {167 return process.nextTick(cb, err.errno);168 } else {169 return process.nextTick(cb, Fuse.EFAULT);170 }171 });172 /​/​ return process.nextTick(cb,Fuse.EHOSTUNREACH)173 },174 utimens: (path, atime, mtime, cb) => {175 /​/​console.log('I>utime',path,atime,mtime);176 fuseops.utimens(path,atime,mtime).then(()=>{177 return cb(0);178 }).catch(err=>{179 if (err instanceof FSError) {180 return process.nextTick(cb, err.errno);181 } else {182 return process.nextTick(cb, Fuse.EFAULT);183 }184 })185 /​/​dummy function186 /​/​ /​/​console.log('I>changetimes(faking)', path, atime, mtime,typeof atime, typeof mtime);187 /​/​ return process.nextTick(cb, 0);188 },189 mkdir: (path, mode, cb) => {190 /​/​console.log('I>mkdir(%s,%d)', path, mode);191 fuseops192 .mkdir(path, mode)193 .then(() => {194 return process.nextTick(cb, 0);195 })196 .catch(err => {197 if (err instanceof FSError) {198 return process.nextTick(cb, err.errno);199 } else {200 return process.nextTick(cb, Fuse.EFAULT);201 }202 });203 },204 rename: (src, dest, cb) => {205 /​/​console.log('I>rename(%s,%s)', src, dest);206 fuseops207 .rename(src, dest)208 .then(() => {209 return process.nextTick(cb, 0);210 })211 .catch(err => {212 if (err instanceof FSError) {213 return process.nextTick(cb, err.errno);214 } else {215 return process.nextTick(cb, Fuse.EFAULT);216 }217 });218 },219 rmdir: (pathstr, cb) => {220 /​/​console.log('I>rmdir(%s)', pathstr);221 fuseops222 .rmdir(pathstr)223 .then(() => {224 return process.nextTick(cb, 0);225 })226 .catch(err => {227 if (err instanceof FSError) {228 return process.nextTick(cb, err.errno);229 } else {230 return process.nextTick(cb, Fuse.EFAULT);231 }232 });233 },234 write: (path, fd, buffer, length, position, cb) => {235 /​**236 * @type {Buffer}237 */​238 const mybuf = buffer;239 /​/​console.log('I>write',path, fd, length, position);240 fuseops241 .write(fd, buffer, length, position, cb)242 .then(res => {243 /​/​console.log('wrote', res);244 return process.nextTick(cb, res);245 })246 .catch(err => {247 if (err instanceof FSError) {248 return process.nextTick(cb, err.errno);249 } else {250 return process.nextTick(cb, Fuse.EFAULT);251 }252 });253 /​/​ return process.nextTick(cb, 0);254 },255 unlink: (path, cb) => {256 /​/​ console.log('I>unlink', path);257 fuseops258 .unlink(path)259 .then(() => {260 return process.nextTick(cb, 0);261 })262 .catch(err => {263 if (err instanceof FSError) {264 return process.nextTick(cb, err.errno);265 } else {266 return process.nextTick(cb, Fuse.EFAULT);267 }268 });269 },270 flush: (path, fd, cb) => {271 /​/​foobar272 /​/​ console.log('I>flush',path);273 return cb(0);274 },275 releasedir: (path, fd, cb) => {276 return cb(0);277 },278 opendir: (path, flags, cb) => {279 return cb(0, 42);280 },281 /​/​ getxattr: (path, name, position, cb) => {282 /​/​ /​/​console.log('I>getxattr', path,name);283 /​/​ return cb(0, '');284 /​/​ },285 truncate: (path, size, cb) => {286 /​/​ console.log('I>Truncate', path, size);287 fuseops288 .truncate(path, size)289 .then(() => {290 return process.nextTick(cb, 0);291 })292 .catch(err => {293 if (err instanceof FSError) {294 return process.nextTick(cb, err.errno);295 } else {296 return process.nextTick(cb, Fuse.EFAULT);297 }298 });299 },300};301/​**302 * Fuse handler303 */​304const fuse = new Fuse(creds.directory, ops, {305 debug: process.env.COUSCOUS_FUSEDEBUG === 'true',306 displayFolder: true,307});308/​**309 * Mount FUSE310 */​311fuseops312 .init(creds.email,creds.pwd,creds.url)313 .then(() => {314 fuse.mount(err => {315 if (err) {316 throw err;317 }318 /​/​console.log('FS mounted at ' + fuse.mnt);319 });320 })321 .catch(err => {322 if (err instanceof FSError) {323 /​/​console.log('could not mount with error ', err.errno);324 process.exit(1);325 /​/​ return process.nextTick(cb, err.errno);326 } else {327 console.log('E>could not mount, general error:', err.message || err.name || err.msg || err);328 process.exit(1);329 /​/​ return process.nextTick(cb, Fuse.EFAULT);330 }331 });332/​**333 * Unmount FUSE on SIGINT334 */​335process.once('SIGINT', () => {336 fuse.unmount(err => {337 if (err) {338 console.log(339 '\nFS at ' + fuse.mnt + ' could not be unmounted: ' + err340 );341 return;342 }343 fuseops.deinit().then(() => {...

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valid-next-tick.js

Source:valid-next-tick.js Github

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...31 code: `<script>import { nextTick as nt } from 'vue';32 export default {33 async mounted() {34 await nt();35 await Vue.nextTick();36 await this.$nextTick();37 nt().then(callback);38 Vue.nextTick().then(callback);39 this.$nextTick().then(callback);40 nt(callback);41 Vue.nextTick(callback);42 this.$nextTick(callback);43 }44 }</​script>`45 },46 /​/​ https:/​/​github.com/​vuejs/​eslint-plugin-vue/​pull/​1404#discussion_r55093750047 {48 filename: 'test.vue',49 code: `<script>import { nextTick as nt } from 'vue';50 export default {51 mounted() {52 foo.then(nt);53 foo.then(Vue.nextTick);54 foo.then(this.$nextTick);55 foo.then(nt, catchHandler);56 foo.then(Vue.nextTick, catchHandler);57 foo.then(this.$nextTick, catchHandler);58 }59 }</​script>`60 },61 /​/​ https:/​/​github.com/​vuejs/​eslint-plugin-vue/​pull/​1404#discussion_r55093641062 {63 filename: 'test.vue',64 code: `<script>import { nextTick as nt } from 'vue';65 export default {66 mounted() {67 let foo = nt;68 foo = Vue.nextTick;69 foo = this.$nextTick;70 }71 }</​script>`72 },73 /​/​ https:/​/​github.com/​vuejs/​eslint-plugin-vue/​pull/​1404#discussion_r55093693374 {75 filename: 'test.vue',76 code: `<script>import { nextTick as nt } from 'vue';77 export default {78 mounted() {79 Promise.all([nt(), someOtherPromise]);80 Promise.all([Vue.nextTick(), someOtherPromise]);81 Promise.all([this.$nextTick(), someOtherPromise]);82 }83 }</​script>`84 },85 /​/​ https:/​/​github.com/​vuejs/​eslint-plugin-vue/​pull/​1404#discussion_r55176996986 {87 filename: 'test.vue',88 code: `<script>import { nextTick as nt } from 'vue';89 export default {90 created() {91 let queue = nt();92 queue = queue.then(nt);93 return nt();94 },95 mounted() {96 const queue = Vue.nextTick();97 return Vue.nextTick();98 },99 updated() {100 const queue = this.$nextTick();101 return this.$nextTick();102 }103 }</​script>`104 },105 {106 filename: 'test.vue',107 code: `<script>;108 export default {109 methods: {110 fn1 () {111 return this.$nextTick()112 },113 fn2 () {114 return this.$nextTick()115 .then(() => this.$nextTick())116 },117 }118 }</​script>`119 },120 /​/​ https:/​/​github.com/​vuejs/​eslint-plugin-vue/​issues/​1776121 {122 filename: 'test.vue',123 code: `<script>import { nextTick as nt } from 'vue';124 export default {125 mounted() {126 let foo = bar ? nt : undefined;127 foo = bar ? Vue.nextTick : undefined;128 foo = bar ? this.$nextTick : undefined;129 }130 }</​script>`131 }132 ],133 invalid: [134 {135 filename: 'test.vue',136 code: `<script>import { nextTick as nt } from 'vue';137 export default {138 async mounted() {139 nt();140 Vue.nextTick();141 this.$nextTick();142 }143 }</​script>`,144 output: null,145 errors: [146 {147 message:148 'Await the Promise returned by `nextTick` or pass a callback function.',149 line: 4,150 column: 11,151 suggestions: [152 {153 output: `<script>import { nextTick as nt } from 'vue';154 export default {155 async mounted() {156 await nt();157 Vue.nextTick();158 this.$nextTick();159 }160 }</​script>`161 }162 ]163 },164 {165 message:166 'Await the Promise returned by `nextTick` or pass a callback function.',167 line: 5,168 column: 15,169 suggestions: [170 {171 output: `<script>import { nextTick as nt } from 'vue';172 export default {173 async mounted() {174 nt();175 await Vue.nextTick();176 this.$nextTick();177 }178 }</​script>`179 }180 ]181 },182 {183 message:184 'Await the Promise returned by `nextTick` or pass a callback function.',185 line: 6,186 column: 16,187 suggestions: [188 {189 output: `<script>import { nextTick as nt } from 'vue';190 export default {191 async mounted() {192 nt();193 Vue.nextTick();194 await this.$nextTick();195 }196 }</​script>`197 }198 ]199 }200 ]201 },202 {203 filename: 'test.vue',204 code: `<script>import { nextTick as nt } from 'vue';205 export default {206 mounted() {207 nt;208 Vue.nextTick;209 this.$nextTick;210 nt.then(callback);211 Vue.nextTick.then(callback);212 this.$nextTick.then(callback);213 }214 }</​script>`,215 output: `<script>import { nextTick as nt } from 'vue';216 export default {217 mounted() {218 nt();219 Vue.nextTick();220 this.$nextTick();221 nt().then(callback);222 Vue.nextTick().then(callback);223 this.$nextTick().then(callback);224 }225 }</​script>`,226 errors: [227 {228 message: '`nextTick` is a function.',229 line: 4,230 column: 11231 },232 {233 message: '`nextTick` is a function.',234 line: 5,235 column: 15236 },237 {238 message: '`nextTick` is a function.',239 line: 6,240 column: 16241 },242 {243 message: '`nextTick` is a function.',244 line: 8,245 column: 11246 },247 {248 message: '`nextTick` is a function.',249 line: 9,250 column: 15251 },252 {253 message: '`nextTick` is a function.',254 line: 10,255 column: 16256 }257 ]258 },259 {260 filename: 'test.vue',261 code: `<script>import { nextTick as nt } from 'vue';262 export default {263 async mounted() {264 await nt;265 await Vue.nextTick;266 return this.$nextTick;267 }268 }</​script>`,269 output: `<script>import { nextTick as nt } from 'vue';270 export default {271 async mounted() {272 await nt();273 await Vue.nextTick();274 return this.$nextTick();275 }276 }</​script>`,277 errors: [278 {279 message: '`nextTick` is a function.',280 line: 4,281 column: 17282 },283 {284 message: '`nextTick` is a function.',285 line: 5,286 column: 21287 },288 {289 message: '`nextTick` is a function.',290 line: 6,291 column: 23292 }293 ]294 },295 /​/​ https:/​/​github.com/​vuejs/​eslint-plugin-vue/​pull/​1404#discussion_r550936933296 {297 filename: 'test.vue',298 code: `<script>import { nextTick as nt } from 'vue';299 export default {300 mounted() {301 Promise.all([nt, someOtherPromise]);302 Promise.all([Vue.nextTick, someOtherPromise]);303 Promise.all([this.$nextTick, someOtherPromise]);304 }305 }</​script>`,306 output: `<script>import { nextTick as nt } from 'vue';307 export default {308 mounted() {309 Promise.all([nt(), someOtherPromise]);310 Promise.all([Vue.nextTick(), someOtherPromise]);311 Promise.all([this.$nextTick(), someOtherPromise]);312 }313 }</​script>`,314 errors: [315 {316 message: '`nextTick` is a function.',317 line: 4,318 column: 24319 },320 {321 message: '`nextTick` is a function.',322 line: 5,323 column: 28324 },325 {326 message: '`nextTick` is a function.',327 line: 6,328 column: 29329 }330 ]331 },332 {333 filename: 'test.vue',334 code: `<script>import { nextTick as nt } from 'vue';335 export default {336 mounted() {337 nt(callback, anotherCallback);338 Vue.nextTick(callback, anotherCallback);339 this.$nextTick(callback, anotherCallback);340 }341 }</​script>`,342 output: null,343 errors: [344 {345 message: '`nextTick` expects zero or one parameters.',346 line: 4,347 column: 11348 },349 {350 message: '`nextTick` expects zero or one parameters.',351 line: 5,352 column: 15353 },354 {355 message: '`nextTick` expects zero or one parameters.',356 line: 6,357 column: 16358 }359 ]360 },361 {362 filename: 'test.vue',363 code: `<script>import { nextTick as nt } from 'vue';364 export default {365 async mounted() {366 nt(callback).then(anotherCallback);367 Vue.nextTick(callback).then(anotherCallback);368 this.$nextTick(callback).then(anotherCallback);369 await nt(callback);370 await Vue.nextTick(callback);371 await this.$nextTick(callback);372 }373 }</​script>`,374 output: null,375 errors: [376 {377 message:378 'Either await the Promise or pass a callback function to `nextTick`.',379 line: 4,380 column: 11381 },382 {383 message:384 'Either await the Promise or pass a callback function to `nextTick`.',385 line: 5,...

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next-tick-style.js

Source:next-tick-style.js Github

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...30 filename: 'test.vue',31 code: `<script>import { nextTick as nt } from 'vue';32 export default {33 async mounted() {34 this.$nextTick().then(() => callback());35 Vue.nextTick().then(() => callback());36 nt().then(() => callback());37 await this.$nextTick(); callback();38 await Vue.nextTick(); callback();39 await nt(); callback();40 }41 }</​script>`42 },43 {44 filename: 'test.vue',45 options: ['promise'],46 code: `<script>import { nextTick as nt } from 'vue';47 export default {48 async mounted() {49 this.$nextTick().then(() => callback());50 Vue.nextTick().then(() => callback());51 nt().then(() => callback());52 await this.$nextTick(); callback();53 await Vue.nextTick(); callback();54 await nt(); callback();55 }56 }</​script>`57 },58 {59 filename: 'test.vue',60 options: ['callback'],61 code: `<script>import { nextTick as nt } from 'vue';62 export default {63 mounted() {64 this.$nextTick(() => callback());65 Vue.nextTick(() => callback());66 nt(() => callback());67 this.$nextTick(callback);68 Vue.nextTick(callback);69 nt(callback);70 }71 }</​script>`72 },73 /​/​ https:/​/​github.com/​vuejs/​eslint-plugin-vue/​pull/​1400#discussion_r55093797774 {75 filename: 'test.vue',76 options: ['promise'],77 code: `<script>import { nextTick as nt } from 'vue';78 export default {79 mounted() {80 foo.then(this.$nextTick);81 foo.then(Vue.nextTick);82 foo.then(nt);83 foo.then(nt, catchHandler);84 foo.then(Vue.nextTick, catchHandler);85 foo.then(this.$nextTick, catchHandler);86 }87 }</​script>`88 },89 {90 filename: 'test.vue',91 options: ['callback'],92 code: `<script>import { nextTick as nt } from 'vue';93 export default {94 mounted() {95 foo.then(this.$nextTick);96 foo.then(Vue.nextTick);97 foo.then(nt);98 foo.then(nt, catchHandler);99 foo.then(Vue.nextTick, catchHandler);100 foo.then(this.$nextTick, catchHandler);101 }102 }</​script>`103 }104 ],105 invalid: [106 {107 filename: 'test.vue',108 code: `<script>import { nextTick as nt } from 'vue';109 export default {110 mounted() {111 this.$nextTick(() => callback());112 Vue.nextTick(() => callback());113 nt(() => callback());114 this.$nextTick(callback);115 Vue.nextTick(callback);116 nt(callback);117 }118 }</​script>`,119 output: `<script>import { nextTick as nt } from 'vue';120 export default {121 mounted() {122 this.$nextTick().then(() => callback());123 Vue.nextTick().then(() => callback());124 nt().then(() => callback());125 this.$nextTick().then(callback);126 Vue.nextTick().then(callback);127 nt().then(callback);128 }129 }</​script>`,130 errors: [131 {132 message:133 'Use the Promise returned by `nextTick` instead of passing a callback function.',134 line: 4,135 column: 16136 },137 {138 message:139 'Use the Promise returned by `nextTick` instead of passing a callback function.',140 line: 5,141 column: 15142 },143 {144 message:145 'Use the Promise returned by `nextTick` instead of passing a callback function.',146 line: 6,147 column: 11148 },149 {150 message:151 'Use the Promise returned by `nextTick` instead of passing a callback function.',152 line: 8,153 column: 16154 },155 {156 message:157 'Use the Promise returned by `nextTick` instead of passing a callback function.',158 line: 9,159 column: 15160 },161 {162 message:163 'Use the Promise returned by `nextTick` instead of passing a callback function.',164 line: 10,165 column: 11166 }167 ]168 },169 {170 filename: 'test.vue',171 options: ['promise'],172 code: `<script>import { nextTick as nt } from 'vue';173 export default {174 mounted() {175 this.$nextTick(() => callback());176 Vue.nextTick(() => callback());177 nt(() => callback());178 this.$nextTick(callback);179 Vue.nextTick(callback);180 nt(callback);181 }182 }</​script>`,183 output: `<script>import { nextTick as nt } from 'vue';184 export default {185 mounted() {186 this.$nextTick().then(() => callback());187 Vue.nextTick().then(() => callback());188 nt().then(() => callback());189 this.$nextTick().then(callback);190 Vue.nextTick().then(callback);191 nt().then(callback);192 }193 }</​script>`,194 errors: [195 {196 message:197 'Use the Promise returned by `nextTick` instead of passing a callback function.',198 line: 4,199 column: 16200 },201 {202 message:203 'Use the Promise returned by `nextTick` instead of passing a callback function.',204 line: 5,205 column: 15206 },207 {208 message:209 'Use the Promise returned by `nextTick` instead of passing a callback function.',210 line: 6,211 column: 11212 },213 {214 message:215 'Use the Promise returned by `nextTick` instead of passing a callback function.',216 line: 8,217 column: 16218 },219 {220 message:221 'Use the Promise returned by `nextTick` instead of passing a callback function.',222 line: 9,223 column: 15224 },225 {226 message:227 'Use the Promise returned by `nextTick` instead of passing a callback function.',228 line: 10,229 column: 11230 }231 ]232 },233 {234 filename: 'test.vue',235 options: ['callback'],236 code: `<script>import { nextTick as nt } from 'vue';237 export default {238 async mounted() {239 this.$nextTick().then(() => callback());240 Vue.nextTick().then(() => callback());241 nt().then(() => callback());242 await this.$nextTick(); callback();243 await Vue.nextTick(); callback();244 await nt(); callback();245 }246 }</​script>`,247 output: null,248 errors: [249 {250 message:251 'Pass a callback function to `nextTick` instead of using the returned Promise.',252 line: 4,253 column: 16254 },255 {256 message:257 'Pass a callback function to `nextTick` instead of using the returned Promise.',...

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asyncize.js

Source:asyncize.js Github

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...62 }63 if (arguments.length === 1 && !isFunc(arguments[0])) {/​/​must be expecting a promise and are passing in an object param64 return new Promise((resolve, reject) => {65 if (success) {66 process.nextTick(resolve, success);67 }68 else if (typeof queriableData !== 'undefined') {69 let result = module.exports.queryData(queriableData, arguments[0]);70 if(result !== null){71 process.nextTick(resolve, result);72 }73 else {74 process.nextTick(reject, error);75 }76 }77 else {78 process.nextTick(reject, error);79 }80 });81 }82 else if (arguments.length === 1 && isFunc(arguments[0])) {/​/​must be passing in a singleton 'nodejs' error first callback83 if (success) {84 process.nextTick(arguments[0], null, success);85 }86 else {87 process.nextTick(arguments[0], error);88 }89 }90 else if (arguments.length === 2 && !isFunc(arguments[0]) && isFunc(arguments[1])) {/​/​you must be passing in a param obj, as well as a error first callback91 if (success) {92 process.nextTick(arguments[1], null, success);93 }94 else if (queriableData) {95 let result = module.exports.queryData(queriableData, arguments[0]);96 if(result !== null){97 process.nextTick(arguments[1], null, result);98 }99 else {100 process.nextTick(arguments[1], error);101 }102 }103 else {104 process.nextTick(arguments[1], error);105 }106 }107 else if (arguments.length === 2 && isFunc(arguments[0]) && isFunc(arguments[1])) {/​/​you must be passing both ok,fail callbacks108 if (success) {109 process.nextTick(arguments[0], success);110 }111 else {112 process.nextTick(arguments[1], error);113 }114 }115 else if ((arguments.length > 2) && !isFunc(arguments[0]) && isFunc(arguments[1]) && isFunc(arguments[2])) {/​/​ ok and fail as well as a object param116 if (success) {117 process.nextTick(arguments[1], success);118 }119 else if (queriableData) {120 let result = module.exports.queryData(queriableData, arguments[0]);121 if(result !== null){122 process.nextTick(arguments[1], module.exports.queryData(queriableData, arguments[0]));123 }124 else {125 process.nextTick(arguments[2], error);126 }127 }128 else {129 process.nextTick(arguments[2], error);130 }131 }132 else {/​/​ length === 0 or some other situation133 return new Promise((resolve, reject) => {134 if (success) {135 process.nextTick(resolve, success);136 }137 else if (queriableData) {138 process.nextTick(reject, queriableData);139 }140 else {141 process.nextTick(reject, error);142 }143 });144 }145 };146 },147 /​**148 * Asynchronizes sync functions and standalone values turning them into a149 * err first callback or a ok/​fail callback pair, or a promise150 *151 * @param value152 * @param args153 * @returns {Function}154 */​155 async: function (value, args) {156 return function callbackable(ok, fail) {157 return new Promise((resolve, reject) => {158 let aok = module.exports.spreader(ok, resolve);159 let nope = module.exports.spreader(fail, reject);160 if (typeof value === 'function') {161 try {162 process.nextTick(aok, value.apply(self, args));163 }164 catch (e) {165 if(typeof fail !== 'function' && typeof ok === 'function') {166 process.nextTick(ok, null, e);167 process.nextTick(reject, e);168 }169 else {170 process.nextTick(nope, e);171 }172 }173 return;174 }175 else if(typeof value === 'undefined'){/​/​error condition176 /​/​incases were the client wants to user error first callbacks177 if(typeof fail !== 'function' && typeof ok === 'function') {178 process.nextTick(ok, null, args);179 process.nextTick(reject, args);180 }181 else {182 process.nextTick(nope, args);183 }184 return;185 }186 aok(value);187 });188 };189 }...

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test.js

Source:test.js Github

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...72 throw new Error('Did not call the callback immediately after the first error');73 }74 done();75 }, true);76 process.nextTick(callbackManager.registerCallback());77 process.nextTick(callbackManager.registerCallback().bind(null, firstError));78 process.nextTick(callbackManager.registerCallback().bind(null, otherError));79 process.nextTick(callbackManager.registerCallback());80 process.nextTick(callbackManager.registerCallback().bind(null, otherError));81 });82 it('should not invoke the callback with a value if a non-error value was encountered', done => {83 var callbackManager = new CallbackManager(function(err) {84 if (err) {85 throw new Error('Should not have been invoked with an error value');86 }87 done();88 });89 process.nextTick(callbackManager.registerCallback());90 process.nextTick(callbackManager.registerCallback().bind(null, true));91 process.nextTick(callbackManager.registerCallback().bind(null, 10));92 process.nextTick(callbackManager.registerCallback());93 process.nextTick(callbackManager.registerCallback().bind(null, 'error'));94 });95 it('should be reusable, even after an error', done => {96 var expectedErrValue = new Error();97 var callbackManager = new CallbackManager(function(err) {98 if (err !== expectedErrValue) {99 throw new Error('Unexpected err value: ' + err);100 }101 if (err) {102 expectedErrValue = null;103 process.nextTick(callbackManager.registerCallback());104 process.nextTick(callbackManager.registerCallback());105 } else {106 done();107 }108 });109 process.nextTick(callbackManager.registerCallback());110 process.nextTick(callbackManager.registerCallback().bind(null, expectedErrValue));111 process.nextTick(callbackManager.registerCallback());112 });113 describe('#callback', () => {114 it('should be the original callback passed to the constructor', () => {115 function callback() {}116 var callbackManager = new CallbackManager(callback);117 callbackManager.callback.should.equal(callback);118 });119 it('should not be modifiable', () => {120 function callback() {}121 var callbackManager = new CallbackManager(callback);122 (function() {123 callbackManager.callback = 1;124 }).should.throw(TypeError);125 });126 });127 describe('#registerCallback()', () => {128 it('should return a function', () => {129 var callbackManager = new CallbackManager(function() {});130 callbackManager.registerCallback().should.be.a.Function();131 });132 });133 describe('#getCount()', () => {134 it('should return the number of callbacks currently waiting to be called', done => {135 var callbackManager = new CallbackManager(done);136 callbackManager.getCount().should.equal(0);137 process.nextTick(callbackManager.registerCallback());138 callbackManager.getCount().should.equal(1);139 process.nextTick(callbackManager.registerCallback());140 process.nextTick(() => callbackManager.getCount().should.equal(1));141 process.nextTick(callbackManager.registerCallback());142 callbackManager.getCount().should.equal(3);143 });144 });145 describe('#abort()', () => {146 it('should prevent the provided callback from being called', done => {147 var callbackManager = new CallbackManager(function() {148 throw new Error('Callback not aborted');149 });150 process.nextTick(callbackManager.registerCallback());151 process.nextTick(() => callbackManager.abort());152 process.nextTick(callbackManager.registerCallback());153 process.nextTick(callbackManager.registerCallback());154 process.nextTick(done);155 });156 });...

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example10.js

Source:example10.js Github

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...19const __mapEventLoop = true;20const intervalTimeout = setInterval(() => {21 logger.debug('TIMERS PHASE: GREETINGS', 'setInterval');22 if (__mapEventLoop) {23 process.nextTick(() => {24 logger.debug('TIMERS PHASE DONE', 'ReadableStream.on(open).callback(process.nextTick)');25 });26 }27}, 0);28readableStream.on('open', (fd) => {29 logger.info('open event received', 'ReadableStream.on(open).callback');30 if (__mapEventLoop) {31 process.nextTick(() => {32 logger.debug('POLL PHASE DONE', 'ReadableStream.on(open).callback(process.nextTick)');33 });34 /​/​ The next two calls prove where the ready event is coming from35 setTimeout(() => {36 logger.debug('TIMER EXPIRED', 'ReadableStream.on(ready).callback(setTimeout)');37 process.nextTick(() => {38 logger.debug('TIMERS PHASE DONE', 'ReadableStream.on(ready).callback(setTimeout.process.nextTick)');39 });40 }, 0);41 setImmediate(() => {42 logger.debug('CHECK PHASE: GREETINGS', 'ReadableStream.on(ready).callback(setImmediate)');43 process.nextTick(() => {44 logger.debug('CHECK PHASE DONE', 'ReadableStream.on(ready).callback(setImmediate.process.nextTick)');45 });46 });47 /​/​ Eat some CPU to make sure the setTimeout(0) has expired before we let the event loop continue48 simpleUtils.eatCpu(3);49 }50});51readableStream.on('data', (chunk) => {52 logger.info('data event received: chunk size: ' + chunk.length, 'ReadableStream.on(data).callback');53 if (__mapEventLoop) {54 process.nextTick(() => {55 logger.debug('POLL PHASE DONE', 'ReadableStream.on(data).callback(process.nextTick)');56 });57 setTimeout(() => {58 logger.debug('TIMER EXPIRED', 'ReadableStream.on(data).callback(setTimeout)');59 process.nextTick(() => {60 logger.debug('TIMERS PHASE DONE', 'ReadableStream.on(data).callback(setTimeout.process.nextTick)');61 });62 }, 0);63 setImmediate(() => {64 logger.debug('CHECK PHASE: GREETINGS', 'ReadableStream.on(data).callback(setImmediate)');65 process.nextTick(() => {66 logger.debug('CHECK PHASE DONE', 'ReadableStream.on(data).callback(setImmediate.process.nextTick)');67 });68 });69 }70});71readableStream.on('close', () => {72 logger.info('close event received', 'ReadableStream.on(close).callback');73 if (__mapEventLoop) {74 process.nextTick(() => {75 logger.debug('POLL PHASE DONE', 'ReadableStream.on(close).callback(process.nextTick)');76 });77 /​/​ The next two calls prove where the close event is coming from78 /​/​ If we see the setTimeout(0) callback next, then the close event is coming from the close phase79 setTimeout(() => {80 logger.debug('TIMER EXPIRED', 'ReadableStream.on(close).callback(setTimeout)');81 process.nextTick(() => {82 logger.debug('TIMERS PHASE DONE', 'ReadableStream.on(close).callback(setTimeout.process.nextTick)');83 });84 }, 0);85 /​/​ If we see the setImmediate() callback next, then close event is coming from the poll phase86 setImmediate(() => {87 logger.debug('CHECK PHASE: GREETINGS', 'ReadableStream.on(close).callback(setImmediate)');88 process.nextTick(() => {89 logger.debug('CHECK PHASE DONE', 'ReadableStream.on(close).callback(setImmediate.process.nextTick)');90 });91 });92 /​/​ Eat some CPU to make sure the setTimeout(0) has expired before we let the event loop continue93 simpleUtils.eatCpu(3);94 }95 clearInterval(intervalTimeout);96});97readableStream.on('error', (error) => {98 logger.info('ERROR: ' + error);99 if (__mapEventLoop) {100 process.nextTick(() => {101 logger.debug('POLL PHASE DONE', 'ReadableStream.on(error).callback(process.nextTick)');102 });103 /​/​ The next two calls prove where the error event is coming from104 /​/​ If we see the setTimeout(0) callback next, then the error event is coming from the close phase105 setTimeout(() => {106 logger.debug('TIMER EXPIRED', 'ReadableStream.on(error).callback(setTimeout)');107 process.nextTick(() => {108 logger.debug('TIMERS PHASE DONE', 'ReadableStream.on(error).callback(setTimeout.process.nextTick)');109 });110 }, 0);111 /​/​ If we see the setImmediate() callback next, then error event is coming from the poll phase112 setImmediate(() => {113 logger.debug('CHECK PHASE: GREETINGS', 'ReadableStream.on(error).callback(setImmediate)');114 process.nextTick(() => {115 logger.debug('CHECK PHASE DONE', 'ReadableStream.on(error).callback(setImmediate.process.nextTick)');116 });117 });118 /​/​ Eat some CPU to make sure the setTimeout(0) has expired before we let the event loop continue119 simpleUtils.eatCpu(3);120 }121 clearInterval(intervalTimeout);...

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02-非异步IO的API.js

Source:02-非异步IO的API.js Github

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2 * 需要关注的API3 * > setTimeout()4 * > setInterval()5 * > setImmediate()6 * > process.nextTick()7 */​8/​**9 * 定时器10 * setTimeout() 和 setInterval() 与浏览器中的API是一致的,分别用于单次和多次定时执行任务.11 * 调用setTimeout() 或 setInterval() 创建的定时器会被插入到定时器观察者内部的一个黑红树中.12 * 每次Tick执行时,会从该红黑树中迭代取出定时器对象,检查是否超过定时时间,如果超时,就形成一个事件,13 * 它的回调函数将立即执行.14 */​15/​**16 * process.nextTick()17 * 每次调用 process.nextTick()方法, 只会将回调函数放入队列中, 在下一轮Tick时取出执行. 定时器中18 * 采用红黑树的操作时间复杂度为 O(lg(n)), nextTick() 的时间复杂度为 O(1).相交之下, process.nextTick()更为高效.19 */​20/​**21 * setImmediate()22 * 它与process.nextTick()方法十分类似,都是将回调函数延迟执行. 在 Node v0.9.1 之前, setImmediate()23 * 还没有实现,那时候实现类似的功能主要是通过 process.nextTick() 来完成, 该方法的代码如下24 */​25/​/​ process.nextTick(function(){26/​/​ console.log('process 延迟执行');27/​/​ });28/​/​ console.log('process 正常执行');29/​/​ setImmediate(function(){30/​/​ console.log('Immediate 延迟执行');31/​/​ });32/​/​ console.log('Immediate 正常执行');33/​**34 * setImmediate() 和 process.nextTick() 之间是有细微差别的.从以上结果看出35 * > process.nextTick() 中的回调函数执行的优先级 要高于 setImmediate(). 这里的原因在于事件循环对观察者的检查是有先后顺序的.36 * process.nextTick() 属于 idle 观察者, setImmediate() 属于 check 观察者.37 * 38 * > 在每一次轮询检查中, idle 观察者先于 I/​O 观察者, I/​O 观察者先于 check 观察者.39 * 40 * > 在具体底层实现上, process.nextTick() 的回调函数保存在一个数组中, setImmediate() 的结果则保存在链表中.41 * > 在行为上, process.nextTick()在每轮循环中会将数组中的回调函数全部执行完, 而 setImmediate()在每轮循环中42 * 执行链表中的一个回调函数. 看以下实例.43 */​44/​/​ 加入两个 nextTick()的回调函数45process.nextTick(() =>{46 console.log('nextTick延迟执行1');47});48process.nextTick(() =>{49 console.log('nextTick延迟执行2');50});51/​/​加入两个setImmediate()的回调函数52setImmediate(()=> {53 console.log('setImmediate延迟执行1');54 /​/​进入下次循环55 process.nextTick(() => {56 console.log('强势插入');57 });58});59setImmediate(() =>{60 console.log('setImmediate延迟执行2');61});62console.log('正常执行');63/​**64 * 从执行结果上来看, 当第一个setImmediate() 的回调函数执行后, 并没有立即执行第二个,而是进入了下一轮循环,再次按照65 * > process.nextTick()优先, setImmediate()次后的顺序执行.66 * 之所以这样设计, 是为了保证每轮循环能够较快地执行结束,防止CPU占用过多而阻塞后续I/​O调用的情况....

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next-tick-depth-args.js

Source:next-tick-depth-args.js Github

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...8 var n = +conf.millions * 1e6;9 function cb4(arg1, arg2, arg3, arg4) {10 if (--n) {11 if (n % 4 === 0)12 process.nextTick(cb4, 3.14, 1024, true, false);13 else if (n % 3 === 0)14 process.nextTick(cb3, 512, true, null);15 else if (n % 2 === 0)16 process.nextTick(cb2, false, 5.1);17 else18 process.nextTick(cb1, 0);19 } else20 bench.end(+conf.millions);21 }22 function cb3(arg1, arg2, arg3) {23 if (--n) {24 if (n % 4 === 0)25 process.nextTick(cb4, 3.14, 1024, true, false);26 else if (n % 3 === 0)27 process.nextTick(cb3, 512, true, null);28 else if (n % 2 === 0)29 process.nextTick(cb2, false, 5.1);30 else31 process.nextTick(cb1, 0);32 } else33 bench.end(+conf.millions);34 }35 function cb2(arg1, arg2) {36 if (--n) {37 if (n % 4 === 0)38 process.nextTick(cb4, 3.14, 1024, true, false);39 else if (n % 3 === 0)40 process.nextTick(cb3, 512, true, null);41 else if (n % 2 === 0)42 process.nextTick(cb2, false, 5.1);43 else44 process.nextTick(cb1, 0);45 } else46 bench.end(+conf.millions);47 }48 function cb1(arg1) {49 if (--n) {50 if (n % 4 === 0)51 process.nextTick(cb4, 3.14, 1024, true, false);52 else if (n % 3 === 0)53 process.nextTick(cb3, 512, true, null);54 else if (n % 2 === 0)55 process.nextTick(cb2, false, 5.1);56 else57 process.nextTick(cb1, 0);58 } else59 bench.end(+conf.millions);60 }61 bench.start();62 process.nextTick(cb1, true);...

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Using AI Code Generation

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1const fs = require('fs');2function someAsyncOperation(callback) {3 fs.readFile('/​path/​to/​file', callback);4}5const timeoutScheduled = Date.now();6setTimeout(() => {7 const delay = Date.now() - timeoutScheduled;8 console.log(`${delay}ms have passed since I was scheduled`);9}, 100);10someAsyncOperation(() => {11 const startCallback = Date.now();12 while (Date.now() - startCallback < 10) {13 }14});15const fs = require('fs');16function someAsyncOperation(callback) {17 fs.readFile('/​path/​to/​file', callback);18}19const timeoutScheduled = Date.now();20setImmediate(() => {21 const delay = Date.now() - timeoutScheduled;22 console.log(`${delay}ms have passed since I was scheduled`);23});24someAsyncOperation(() => {25 const startCallback = Date.now();26 while (Date.now() - startCallback < 10) {27 }28});29const fs = require('fs');30function someAsyncOperation(callback) {31 fs.readFile('/​path/​to/​file', callback);32}33const timeoutScheduled = Date.now();34process.nextTick(() => {35 const delay = Date.now() - timeoutScheduled;36 console.log(`${delay}ms have passed since I was scheduled`);37});38someAsyncOperation(() => {39 const startCallback = Date.now();40 while (Date.now() - startCallback < 10) {41 }42});

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Using AI Code Generation

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1process.nextTick(function(){2 console.log("nextTick callback");3});4console.log("nextTick was set");5setImmediate(function(){6 console.log("setImmediate callback");7});8console.log("setImmediate was set");9setTimeout(function(){10 console.log("setTimeout callback");11}, 0);12console.log("setTimeout was set");13setTimeout(function(){14 console.log("setTimeout callback");15}, 1000);16console.log("setTimeout was set");17setTimeout(function(){18 console.log("setTimeout callback");19}, 0);20console.log("setTimeout was set");21setTimeout(function(){22 console.log("setTimeout callback");23}, 0);24console.log("setTimeout was set");25setTimeout(function(){26 console.log("setTimeout callback");27}, 0);28console.log("setTimeout was set");29setTimeout(function(){30 console.log("setTimeout callback");31}, 0);32console.log("setTimeout was set");33setTimeout(function(){34 console.log("setTimeout callback");35}, 0);36console.log("setTimeout was set");37setTimeout(function(){38 console.log("setTimeout callback");39}, 0);40console.log("setTimeout was set");41setTimeout(function(){42 console.log("setTimeout callback");43}, 0);44console.log("setTimeout was set");45setTimeout(function(){46 console.log("setTimeout callback");47}, 0);48console.log("setTimeout was set");49setTimeout(function(){50 console.log("setTimeout callback");51}, 0);52console.log("setTimeout was set");

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Using AI Code Generation

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1BestGlobalObject.nextTick(function() {2 console.log("nextTick method called");3});4BestGlobalObject.setImmediate(function() {5 console.log("setImmediate method called");6});7BestGlobalObject.setTimeout(function() {8 console.log("setTimeout method called");9}, 0);10BestGlobalObject.process.nextTick(function() {11 console.log("process.nextTick method called");12});13BestGlobalObject.process.setImmediate(function() {14 console.log("process.setImmediate method called");15});16BestGlobalObject.process.nextTick(function() {17 console.log("process.nextTick method called");18});19BestGlobalObject.process.nextTick(function() {20 console.log("process.nextTick method called");21});22BestGlobalObject.process.nextTick(function() {23 console.log("process.nextTick method called");24});25BestGlobalObject.process.nextTick(function() {26 console.log("process.nextTick method called");27});28BestGlobalObject.process.nextTick(function() {29 console.log("process.nextTick method called");30});31BestGlobalObject.process.nextTick(function() {32 console.log("process.nextTick method called");33});34BestGlobalObject.process.nextTick(function() {35 console.log("process.nextTick method called");36});37BestGlobalObject.process.nextTick(function() {38 console.log("process.nextTick method called");39});40BestGlobalObject.process.nextTick(function() {41 console.log("process.nextTick method called");42});43BestGlobalObject.process.nextTick(function() {44 console.log("process.nextTick method called");45});46BestGlobalObject.process.nextTick(function() {

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Using AI Code Generation

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1var async = require('async');2var fs = require('fs');3async.series([4 function(callback) {5 fs.readFile('file1.txt', 'utf8', function(err, data) {6 console.log(data);7 callback();8 });9 },10 function(callback) {11 fs.readFile('file2.txt', 'utf8', function(err, data) {12 console.log(data);13 callback();14 });15 },16 function(callback) {17 fs.readFile('file3.txt', 'utf8', function(err, data) {18 console.log(data);19 callback();20 });21 }22], function(err, results) {23 console.log('done');24});

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Using AI Code Generation

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1var fs = require('fs');2fs.readFile('test.txt', function(err, data) {3 console.log('data:', data);4});5console.log('end');6var fs = require('fs');7fs.readFile('test.txt', function(err, data) {8 console.log('data:', data);9});10setImmediate(function() {11 console.log('setImmediate');12});13console.log('end');14var fs = require('fs');15fs.readFile('test.txt', function(err, data) {16 console.log('data:', data);17});18setImmediate(function() {19 console.log('setImmediate');20});21process.nextTick(function() {22 console.log('nextTick');23});24console.log('end');25var fs = require('fs');26fs.readFile('test.txt', function(err, data) {27 console.log('data:', data);28});29setImmediate(function() {30 console.log('setImmediate');31});32process.nextTick(function() {33 console.log('nextTick');34});35console.log('end');

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Using AI Code Generation

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1const fs = require('fs');2const path = require('path');3const longRunningTask = () => {4 const start = Date.now();5 while (Date.now() - start < 3000) {6 }7};8const server = http.createServer((req, res) => {9 if (req.url === '/​') {10 fs.readFile(path.join(__dirname, 'test-file.txt'), () => {11 res.end('Hello World');12 });13 } else {14 res.end('Hello World');15 }16});17server.listen(8000, '

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Using AI Code Generation

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1var BestFriend = require('./​BestFriend');2BestFriend.nextTick(function(){3console.log("Hey, I am BestFriend");4});5var BestFriend = require('./​BestFriend');6BestFriend.nextTick(function(){7console.log("Hey, I am BestFriend");8});9var BestFriend = require('./​BestFriend');10BestFriend.nextTick(function(){11console.log("Hey, I am BestFriend");12});13var BestFriend = require('./​BestFriend');14BestFriend.nextTick(function(){15console.log("Hey, I am BestFriend");16});17var BestFriend = require('./​BestFriend');18BestFriend.nextTick(function(){19console.log("Hey, I am BestFriend");20});21var BestFriend = require('./​BestFriend');22BestFriend.nextTick(function(){23console.log("Hey, I am BestFriend");24});25var BestFriend = require('./​BestFriend');26BestFriend.nextTick(function(){27console.log("Hey, I am BestFriend");28});29var BestFriend = require('./​BestFriend');30BestFriend.nextTick(function(){31console.log("Hey, I am BestFriend");32});33var BestFriend = require('./​BestFriend');34BestFriend.nextTick(function(){35console.log("Hey, I am BestFriend");36});

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