How to use instanceWatch method in Playwright Internal

Best JavaScript code snippet using playwright-internal

browser.js

Source:browser.js Github

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...1209 }1210 };1211 }1212 // this.$watch1213 function instanceWatch(source, cb, options) {1214 const publicThis = this.proxy;1215 const getter = isString(source)1216 ? () => publicThis[source]1217 : source.bind(publicThis);1218 return doWatch(getter, cb.bind(publicThis), options, this);1219 }1220 function traverse(value, seen = new Set()) {1221 if (!isObject(value) || seen.has(value)) {1222 return value;1223 }1224 seen.add(value);1225 if (isRef(value)) {1226 traverse(value.value, seen);1227 } ...

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Application2.es.js

Source:Application2.es.js Github

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...942 remove(instance.scope.effects, effect);943 }944 };945}946function instanceWatch(source, value, options) {947 const publicThis = this.proxy;948 const getter = isString(source) ? source.includes(".") ? createPathGetter(publicThis, source) : () => publicThis[source] : source.bind(publicThis, publicThis);949 let cb;950 if (isFunction(value)) {951 cb = value;952 } else {953 cb = value.handler;954 options = value;955 }956 const cur = currentInstance;957 setCurrentInstance(this);958 const res = doWatch(getter, cb.bind(publicThis), options);959 if (cur) {960 setCurrentInstance(cur);...

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Menu.js.es.js

Source:Menu.js.es.js Github

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...890 remove(instance.scope.effects, effect);891 }892 };893}894function instanceWatch(source, value, options) {895 const publicThis = this.proxy;896 const getter = isString(source) ? source.includes(".") ? createPathGetter(publicThis, source) : () => publicThis[source] : source.bind(publicThis, publicThis);897 let cb;898 if (isFunction(value)) {899 cb = value;900 } else {901 cb = value.handler;902 options = value;903 }904 const cur = currentInstance;905 setCurrentInstance(this);906 const res = doWatch(getter, cb.bind(publicThis), options);907 if (cur) {908 setCurrentInstance(cur);...

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learnTypescripts.js

Source:learnTypescripts.js Github

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...340// ts中函数使用this得先声明以及bind方法使用341// const target = {342// name: 4,343// }344// function instanceWatch(345// this: object,346// source: string | Function,347// ): string {348// console.log(this);349// console.log(source);350// return "fasd";351// }352// const test = instanceWatch.bind(target);353// test('fadsf');354// 安全导航操作符( ?.) 和空属性路径为了解决导航时变量值为null时，页面运行时出错的问题。355// The null hero's name is {{nullHero?.name}}356// 非空断言操作符能确定变量值一定不为空时使用。与安全导航操作符不同的是，非空断言操作符不会防357// 止出现 null 或 undefined。 它只是告诉 TypeScript 的类型检查器对特定的属性表达式，不358// 做 "严格空值检测"...

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setup.js

Source:setup.js Github

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1/**2 * instance3 */4function createComponentInstance(vnode, parent, suspense) {5 const type = vnode.type;6 // inherit parent app context - or - if root, adopt from root vnode7 const appContext = (parent ? parent.appContext : vnode.appContext) || emptyAppContext;8 const instance = {9 uid: uid$2++,10 vnode,11 type,12 parent,13 appContext,14 root: null,15 next: null,16 subTree: null,17 update: null,18 render: null,19 proxy: null,20 withProxy: null,21 effects: null,22 provides: parent ? parent.provides : Object.create(appContext.provides),23 accessCache: null,24 renderCache: [],25 // local resovled assets26 components: null,27 directives: null,28 // resolved props and emits options29 propsOptions: normalizePropsOptions(type, appContext),30 emitsOptions: normalizeEmitsOptions(type, appContext),31 // emit32 emit: null,33 emitted: null,34 // state35 ctx: EMPTY_OBJ,36 data: EMPTY_OBJ,37 props: EMPTY_OBJ,38 attrs: EMPTY_OBJ,39 slots: EMPTY_OBJ,40 refs: EMPTY_OBJ,41 setupState: EMPTY_OBJ,42 setupContext: null,43 // suspense related44 suspense,45 suspenseId: suspense ? suspense.pendingId : 0,46 asyncDep: null,47 asyncResolved: false,48 // lifecycle hooks49 // not using enums here because it results in computed properties50 isMounted: false,51 isUnmounted: false,52 isDeactivated: false,53 bc: null,54 c: null,55 bm: null,56 m: null,57 bu: null,58 u: null,59 um: null,60 bum: null,61 da: null,62 a: null,63 rtg: null,64 rtc: null,65 ec: null66 };67 {68 instance.ctx = createRenderContext(instance);69 }70 instance.root = parent ? parent.root : instance;71 instance.emit = emit.bind(null, instance);72 {73 devtoolsComponentAdded(instance);74 }75 return instance;76}77 const publicPropertiesMap = extend(Object.create(null), {78 $: i => i,79 $el: i => i.vnode.el,80 $data: i => i.data,81 $props: i => ( shallowReadonly(i.props) ),82 $attrs: i => ( shallowReadonly(i.attrs) ),83 $slots: i => ( shallowReadonly(i.slots) ),84 $refs: i => ( shallowReadonly(i.refs) ),85 $parent: i => i.parent && i.parent.proxy,86 $root: i => i.root && i.root.proxy,87 $emit: i => i.emit,88 $options: i => ( resolveMergedOptions(i) ),89 $forceUpdate: i => () => queueJob(i.update),90 $nextTick: () => nextTick,91 $watch: i => ( instanceWatch.bind(i) )92 });93 // In dev mode, the proxy target exposes the same properties as seen on `this`94 // for easier console inspection. In prod mode it will be an empty object so95 // these properties definitions can be skipped.96 function createRenderContext(instance) {97 const target = {};98 // expose internal instance for proxy handlers99 Object.defineProperty(target, `_`, {100 configurable: true,101 enumerable: false,102 get: () => instance103 });104 // expose public properties105 Object.keys(publicPropertiesMap).forEach(key => {106 Object.defineProperty(target, key, {107 configurable: true,108 enumerable: false,109 get: () => publicPropertiesMap[key](instance),110 // intercepted by the proxy so no need for implementation,111 // but needed to prevent set errors112 set: NOOP113 });114 });115 // expose global properties116 const { globalProperties } = instance.appContext.config;117 Object.keys(globalProperties).forEach(key => {118 Object.defineProperty(target, key, {119 configurable: true,120 enumerable: false,121 get: () => globalProperties[key],122 set: NOOP123 });124 });125 return target;126 }127function setupComponent(instance, isSSR = false) {128 isInSSRComponentSetup = isSSR;129 const { props, children, shapeFlag } = instance.vnode;130 const isStateful = shapeFlag & 4 /* STATEFUL_COMPONENT */;131 initProps(instance, props, isStateful, isSSR);132 initSlots(instance, children);133 const setupResult = isStateful134 ? setupStatefulComponent(instance, isSSR)135 : undefined;136 isInSSRComponentSetup = false;137 return setupResult;138}139function setupStatefulComponent(instance, isSSR) {140 const Component = instance.type;141 {142 if (Component.name) {143 validateComponentName(Component.name, instance.appContext.config);144 }145 if (Component.components) {146 const names = Object.keys(Component.components);147 for (let i = 0; i < names.length; i++) {148 validateComponentName(names[i], instance.appContext.config);149 }150 }151 if (Component.directives) {152 const names = Object.keys(Component.directives);153 for (let i = 0; i < names.length; i++) {154 validateDirectiveName(names[i]);155 }156 }157 }158 // 0. create render proxy property access cache159 instance.accessCache = {};160 // 1. create public instance / render proxy161 // also mark it raw so it's never observed162 instance.proxy = new Proxy(instance.ctx, PublicInstanceProxyHandlers);163 {164 exposePropsOnRenderContext(instance);165 }166 // 2. call setup()167 const { setup } = Component;168 if (setup) {169 const setupContext = (instance.setupContext =170 setup.length > 1 ? createSetupContext(instance) : null);171 currentInstance = instance;172 pauseTracking();173 const setupResult = callWithErrorHandling(setup, instance, 0 /* SETUP_FUNCTION */, [ shallowReadonly(instance.props) , setupContext]);174 resetTracking();175 currentInstance = null;176 if (isPromise(setupResult)) {177 if (isSSR) {178 // return the promise so server-renderer can wait on it179 return setupResult.then((resolvedResult) => {180 handleSetupResult(instance, resolvedResult);181 });182 }183 else {184 // async setup returned Promise.185 // bail here and wait for re-entry.186 instance.asyncDep = setupResult;187 }188 }189 else {190 handleSetupResult(instance, setupResult);191 }192 }193 else {194 finishComponentSetup(instance);195 }196}197function createSetupContext(instance) {198 {199 // We use getters in dev in case libs like test-utils overwrite instance200 // properties (overwrites should not be done in prod)201 return Object.freeze({202 get attrs() {203 return new Proxy(instance.attrs, attrHandlers);204 },205 get slots() {206 return shallowReadonly(instance.slots);207 },208 get emit() {209 return (event, ...args) => instance.emit(event, ...args);210 }211 });212 }213}214 const attrHandlers = {215 get: (target, key) => {216 {217 markAttrsAccessed();218 }219 return target[key];220 },221 set: () => {222 warn(`setupContext.attrs is readonly.`);223 return false;224 },225 deleteProperty: () => {226 warn(`setupContext.attrs is readonly.`);227 return false;228 }229 };230function handleSetupResult(instance, setupResult, isSSR) {231 if (isFunction(setupResult)) {232 // setup returned an inline render function233 instance.render = setupResult;234 }235 else if (isObject(setupResult)) {236 if ( isVNode(setupResult)) {237 warn(`setup() should not return VNodes directly - ` +238 `return a render function instead.`);239 }240 // setup returned bindings.241 // assuming a render function compiled from template is present.242 {243 instance.devtoolsRawSetupState = setupResult;244 }245 instance.setupState = proxyRefs(setupResult);246 {247 exposeSetupStateOnRenderContext(instance);248 }249 }250 else if ( setupResult !== undefined) {251 warn(`setup() should return an object. Received: ${setupResult === null ? 'null' : typeof setupResult}`);252 }253 finishComponentSetup(instance);254}255 function proxyRefs(objectWithRefs) {256 return isReactive(objectWithRefs)257 ? objectWithRefs258 : new Proxy(objectWithRefs, shallowUnwrapHandlers);259 }260 const shallowUnwrapHandlers = {261 get: (target, key, receiver) => unref(Reflect.get(target, key, receiver)),262 set: (target, key, value, receiver) => {263 const oldValue = target[key];264 if (isRef(oldValue) && !isRef(value)) {265 oldValue.value = value;266 return true;267 }268 else {269 return Reflect.set(target, key, value, receiver);270 }271 }272 };273 // dev only274 function exposeSetupStateOnRenderContext(instance) {275 const { ctx, setupState } = instance;276 Object.keys(toRaw(setupState)).forEach(key => {277 if (key[0] === '$' || key[0] === '_') {278 warn(`setup() return property ${JSON.stringify(key)} should not start with "$" or "_" ` +279 `which are reserved prefixes for Vue internals.`);280 return;281 }282 Object.defineProperty(ctx, key, {283 enumerable: true,284 configurable: true,285 get: () => setupState[key],286 set: NOOP287 });288 });289 }290function finishComponentSetup(instance, isSSR) {291 const Component = instance.type;292 // template / render function normalization293 if (!instance.render) {294 // could be set from setup()295 if (compile && Component.template && !Component.render) {296 {297 startMeasure(instance, `compile`);298 }299 Component.render = compile(Component.template, {300 isCustomElement: instance.appContext.config.isCustomElement,301 delimiters: Component.delimiters302 });303 {304 endMeasure(instance, `compile`);305 }306 }307 instance.render = (Component.render || NOOP);308 // for runtime-compiled render functions using `with` blocks, the render309 // proxy used needs a different `has` handler which is more performant and310 // also only allows a whitelist of globals to fallthrough.311 if (instance.render._rc) {312 instance.withProxy = new Proxy(instance.ctx, RuntimeCompiledPublicInstanceProxyHandlers);313 }314 }315 // support for 2.x options316 {317 currentInstance = instance;318 applyOptions(instance, Component);319 currentInstance = null;320 }321 // warn missing template/render322 if ( !Component.render && instance.render === NOOP) {323 /* istanbul ignore if */324 if (!compile && Component.template) {325 warn(`Component provided template option but ` +326 `runtime compilation is not supported in this build of Vue.` +327 ( ` Use "vue.esm-browser.js" instead.`328 ) /* should not happen */);329 }330 else {331 warn(`Component is missing template or render function.`);332 }333 }...

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apiWatch.js

Source:apiWatch.js Github

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1import {2 isRef,3 isShallow,4 ReactiveEffect,5 isReactive6} from '../reactivity/index.js'7import {8 EMPTY_OBJ,9 isObject,10 isArray,11 isFunction,12 isString,13 hasChanged,14 NOOP,15 remove,16 isMap,17 isSet,18 isPlainObject19} from '../shared/index.js'20import { queuePreFlushCb } from './scheduler.js'21import {22 currentInstance,23 setCurrentInstance,24 unsetCurrentInstance25} from './component.js'26import { queuePostRenderEffect } from './renderer.js'27export function watchEffect (effect, options) {28 return doWatch(effect, null, options)29}30export function watchPostEffect (effect, options) {31 return doWatch(effect, null, Object.assign(options || {}, { flush: 'post' }))32}33export function watchSyncEffect (effect, options) {34 return doWatch(effect, null, Object.assign(options || {}, { flush: 'sync' }))35}36const INITIAL_WATCHER_VALUE = {}37export function watch (source, cb, options) {38 if (!isFunction(cb)) return false39 return doWatch(source, cb, options)40}41/**42 * @param {ref reactive Array Function} source 需要监听的数据43 * @param {*} cb 回调函数44 * @param {*} options 配置45 * @param {Boolean}immediate 立即执行46 * @param {Boolean} deep 深层次监听47 * @param {pre|post} flush 回调函数的执行时机，组件更新前、更新后、更新时48 *49 */50function doWatch (source, cb, { immediate, deep, flush } = EMPTY_OBJ) {51 const instance = currentInstance52 let getter53 let forceTrigger = false54 let isMultiSource = false55 // 处理需要监听的数据56 // ref reactive Function [ref,reactive]57 if (isRef(source)) {58 // ref59 getter = () => source.value60 forceTrigger = isShallow(source)61 } else if (isReactive(source)) {62 // reactive63 getter = () => source64 deep = true65 } else if (isArray(source)) {66 // Array67 isMultiSource = true68 forceTrigger = source.some(isReactive)69 getter = () =>70 source.map(s => {71 if (isRef(s)) {72 return s.value73 } else if (isReactive(s)) {74 return traverse(s)75 } else if (isFunction(s)) {76 return s()77 }78 })79 } else if (isFunction(source)) {80 if (cb) {81 // getter with cb82 getter = () => source()83 } else {84 // no cb -> simple effect85 getter = () => {86 if (instance && instance.isUnmounted) {87 return88 }89 if (cleanup) {90 cleanup()91 }92 return source(onCleanup)93 }94 }95 } else {96 getter = NOOP97 }98 // 深层次监听99 if (cb && deep) {100 const baseGetter = getter101 // 递归102 getter = () => traverse(baseGetter())103 }104 let cleanup105 let onCleanup = fn => {106 cleanup = effect.onStop = () => fn()107 }108 let oldValue = isMultiSource ? [] : INITIAL_WATCHER_VALUE109 // 调度任务(监听值改变后执行的任务)110 const job = () => {111 if (!effect.active) {112 return113 }114 if (cb) {115 // watch(source, cb)116 const newValue = effect.run()117 if (118 deep ||119 forceTrigger ||120 (isMultiSource121 ? newValue.some((v, i) => hasChanged(v, oldValue[i]))122 : hasChanged(newValue, oldValue)) ||123 false124 ) {125 // 清理 effect126 if (cleanup) {127 cleanup()128 }129 // 回调函数执行130 cb(131 newValue,132 // pass undefined as the old value when it's changed for the first time133 oldValue === INITIAL_WATCHER_VALUE ? undefined : oldValue,134 onCleanup135 )136 oldValue = newValue137 }138 } else {139 // watchEffect140 effect.run()141 }142 }143 // 允许递归144 job.allowRecurse = !!cb // true145 let scheduler146 // 回调函数的执行时机147 // 同步148 if (flush === 'sync') {149 scheduler = job150 } else if (flush === 'post') {151 // 组件更新后调用152 scheduler = () => queuePostRenderEffect(job, instance && instance.suspense)153 } else {154 // 默认组件更新前前回调函数执行155 scheduler = () => {156 // 组件是否挂载157 if (!instance || instance.isMounted) {158 // 组件实例不存在或者组件已经挂载159 // 异步队列160 queuePreFlushCb(job)161 } else {162 // pre 队列必须在组件挂载前同步执行163 job()164 }165 }166 }167 const effect = new ReactiveEffect(getter, scheduler)168 // initial run169 if (cb) {170 // watch 默认当值改变时执行171 if (immediate) {172 // 先执行一次 watch 的回调函数173 job()174 } else {175 oldValue = effect.run()176 }177 } else if (flush === 'post') {178 queuePostRenderEffect(179 effect.run.bind(effect),180 instance && instance.suspense181 )182 } else {183 effect.run()184 }185 return () => {186 // 停止监听187 effect.stop()188 if (instance && instance.scope) {189 remove(instance.scope.effects, effect)190 }191 }192}193export function instanceWatch (source, value, options) {194 const publicThis = this.proxy195 const getter = isString(source)196 ? source.includes('.')197 ? createPathGetter(publicThis, source)198 : () => publicThis[source]199 : source.bind(publicThis, publicThis)200 let cb201 if (isFunction(value)) {202 cb = value203 } else {204 cb = value.handler205 options = value206 }207 const cur = currentInstance208 setCurrentInstance(this)209 const res = doWatch(getter, cb.bind(publicThis), options)210 if (cur) {211 setCurrentInstance(cur)212 } else {213 unsetCurrentInstance()214 }215 return res216}217export function createPathGetter (ctx, path) {218 const segments = path.split('.')219 return () => {220 let cur = ctx221 for (let i = 0; i < segments.length && cur; i++) {222 cur = cur[segments[i]]223 }224 return cur225 }226}227export function traverse (value, seen) {228 if (!isObject(value) || value['__v_skip']) {229 return value230 }231 seen = seen || new Set()232 if (seen.has(value)) {233 return value234 }235 seen.add(value)236 if (isRef(value)) {237 traverse(value.value, seen)238 } else if (isArray(value)) {239 for (let i = 0; i < value.length; i++) {240 traverse(value[i], seen)241 }242 } else if (isSet(value) || isMap(value)) {243 value.forEach(v => {244 traverse(v, seen)245 })246 } else if (isPlainObject(value)) {247 for (const key in value) {248 traverse(value[key], seen)249 }250 }251 return value...

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componentPublicInstance.js

Source:componentPublicInstance.js Github

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1import {2 extend,3 NOOP,4 EMPTY_OBJ,5 hasOwn,6 isGloballyWhitelisted7} from '../shared/index.js'8import { nextTick, queueJob } from './scheduler.js'9import { resolveMergedOptions, shouldCacheAccess } from './componentOptions.js'10import { shallowReadonly, track } from '../reactivity/index.js'11export const getPublicInstance = i => {12 if (!i) return null13 if (isStatefulComponent(i)) return getExposeProxy(i) || i.proxy14 return getPublicInstance(i.parent)15}16export const PublicInstanceProxyHandlers = {17 get ({ _: instance }, key) {18 const {19 ctx,20 setupState,21 data,22 props,23 accessCache,24 type,25 appContext26 } = instance27 let normalizedProps28 if (key[0] !== '$') {29 const n = accessCache[key]30 if (n !== undefined) {31 switch (n) {32 case 1:33 return setupState[key]34 case 2:35 return data[key]36 case 4:37 return ctx[key]38 case 3:39 return props[key]40 }41 } else if (setupState !== EMPTY_OBJ && hasOwn(setupState, key)) {42 accessCache[key] = 143 return setupState[key]44 } else if (data !== EMPTY_OBJ && hasOwn(data, key)) {45 accessCache[key] = 246 return data[key]47 } else if (48 (normalizedProps = instance.propsOptions[0]) &&49 hasOwn(normalizedProps, key)50 ) {51 accessCache[key] = 352 return props[key]53 } else if (ctx !== EMPTY_OBJ && hasOwn(ctx, key)) {54 accessCache[key] = 455 return ctx[key]56 } else if (shouldCacheAccess) {57 accessCache[key] = 058 }59 }60 const publicGetter = publicPropertiesMap[key]61 let cssModule, globalProperties62 if (publicGetter) {63 if (key === '$attrs') {64 track(instance, 'get', key)65 }66 return publicGetter(instance)67 } else if (68 (cssModule = type.__cssModules) &&69 (cssModule = cssModule[key])70 ) {71 return cssModule72 } else if (ctx !== EMPTY_OBJ && hasOwn(ctx, key)) {73 accessCache[key] = 474 return ctx[key]75 } else if (76 ((globalProperties = appContext.config.globalProperties),77 hasOwn(globalProperties, key))78 ) {79 {80 return globalProperties[key]81 }82 }83 },84 set ({ _: instance }, key, value) {85 const { data, setupState, ctx } = instance86 if (setupState !== EMPTY_OBJ && hasOwn(setupState, key)) {87 setupState[key] = value88 return true89 } else if (data !== EMPTY_OBJ && hasOwn(data, key)) {90 data[key] = value91 return true92 } else if (hasOwn(instance.props, key)) {93 return false94 }95 if (key[0] === '$' && key.slice(1) in instance) {96 return false97 } else {98 if (key in instance.appContext.config.globalProperties) {99 Object.defineProperty(ctx, key, {100 enumerable: true,101 configurable: true,102 value103 })104 } else {105 ctx[key] = value106 }107 }108 return true109 },110 has (111 { _: { data, setupState, accessCache, ctx, appContext, propsOptions } },112 key113 ) {114 let normalizedProps115 return (116 !!accessCache[key] ||117 (data !== EMPTY_OBJ && hasOwn(data, key)) ||118 (setupState !== EMPTY_OBJ && hasOwn(setupState, key)) ||119 ((normalizedProps = propsOptions[0]) && hasOwn(normalizedProps, key)) ||120 hasOwn(ctx, key) ||121 hasOwn(publicPropertiesMap, key) ||122 hasOwn(appContext.config.globalProperties, key)123 )124 },125 defineProperty (target, key, descriptor) {126 if (descriptor.get != null) {127 this.set(target, key, descriptor.get(), null)128 } else if (descriptor.value != null) {129 this.set(target, key, descriptor.value, null)130 }131 return Reflect.defineProperty(target, key, descriptor)132 }133}134export const RuntimeCompiledPublicInstanceProxyHandlers = extend(135 {},136 PublicInstanceProxyHandlers,137 {138 get (target, key) {139 if (key === Symbol.unscopables) {140 return141 }142 return PublicInstanceProxyHandlers.get(target, key, target)143 },144 has (_, key) {145 const has = key[0] !== '_' && !isGloballyWhitelisted(key)146 return has147 }148 }149)150export const publicPropertiesMap = extend(Object.create(null), {151 $: i => i,152 $el: i => i.vnode.el,153 $data: i => i.data,154 $props: i => shallowReadonly(i.props),155 $attrs: i => shallowReadonly(i.attrs),156 $slots: i => shallowReadonly(i.slots),157 $refs: i => shallowReadonly(i.refs),158 $parent: i => getPublicInstance(i.parent),159 $root: i => getPublicInstance(i.root),160 $emit: i => i.emit,161 $options: i => resolveMergedOptions(i),162 $forceUpdate: i => () => queueJob(i.update),163 $nextTick: i => nextTick.bind(i.proxy),164 $watch: i => instanceWatch.bind(i)...

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listed.js

Source:listed.js Github

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1function makeMap(str, expectsLowerCase) {2 const map = Object.create(null);3 const list = str.split(',');4 for (let i = 0; i < list.length; i++) {5 map[list[i]] = true;6 }7 return expectsLowerCase ? val => !!map[val.toLowerCase()] : val => !!map[val];8}9const PatchFlagNames = {10 [1 /* TEXT */ ]: `TEXT`,11 [2 /* CLASS */ ]: `CLASS`,12 [4 /* STYLE */ ]: `STYLE`,13 [8 /* PROPS */ ]: `PROPS`,14 [16 /* FULL_PROPS */ ]: `FULL_PROPS`,15 [32 /* HYDRATE_EVENTS */ ]: `HYDRATE_EVENTS`,16 [64 /* STABLE_FRAGMENT */ ]: `STABLE_FRAGMENT`,17 [128 /* KEYED_FRAGMENT */ ]: `KEYED_FRAGMENT`,18 [256 /* UNKEYED_FRAGMENT */ ]: `UNKEYED_FRAGMENT`,19 [512 /* NEED_PATCH */ ]: `NEED_PATCH`,20 [1024 /* DYNAMIC_SLOTS */ ]: `DYNAMIC_SLOTS`,21 [2048 /* DEV_ROOT_FRAGMENT */ ]: `DEV_ROOT_FRAGMENT`,22 [-1 /* HOISTED */ ]: `HOISTED`,23 [-2 /* BAIL */ ]: `BAIL`24};25const slotFlagsText = {26 [1 /* STABLE */ ]: 'STABLE',27 [2 /* DYNAMIC */ ]: 'DYNAMIC',28 [3 /* FORWARDED */ ]: 'FORWARDED'29};30const GLOBALS_WHITE_LISTED = 'Infinity,undefined,NaN,isFinite,isNaN,parseFloat,parseInt,decodeURI,' + 31'decodeURIComponent,encodeURI,encodeURIComponent,Math,Number,Date,Array,' +32'Object,Boolean,String,RegExp,Map,Set,JSON,Intl,BigInt';33const extend = Object.assign;34const publicPropertiesMap = extend(Object.create(null), {35 $: i => i,36 $el: i => i.vnode.el,37 $data: i => i.data,38 $props: i => (shallowReadonly(i.props)),39 $attrs: i => (shallowReadonly(i.attrs)),40 $slots: i => (shallowReadonly(i.slots)),41 $refs: i => (shallowReadonly(i.refs)),42 $parent: i => getPublicInstance(i.parent),43 $root: i => getPublicInstance(i.root),44 $emit: i => i.emit,45 $options: i => (resolveMergedOptions(i)),46 $forceUpdate: i => () => queueJob(i.update),47 $nextTick: i => nextTick.bind(i.proxy),48 $watch: i => (instanceWatch.bind(i))49});50function createComponentInstance(vnode, parent, suspense) {51 const type = vnode.type;52 // inherit parent app context - or - if root, adopt from root vnode53 const appContext = (parent ? parent.appContext : vnode.appContext) || emptyAppContext;54 const instance = {55 uid: uid$1++,56 vnode,57 type,58 parent,59 appContext,60 root: null,61 next: null,62 subTree: null,63 effect: null,64 update: null,65 scope: new EffectScope(true /* detached */ ),66 render: null,67 proxy: null,68 exposed: null,69 exposeProxy: null,70 withProxy: null,71 provides: parent ? parent.provides : Object.create(appContext.provides),72 accessCache: null,73 renderCache: [],74 // local resovled assets75 components: null,76 directives: null,77 // resolved props and emits options78 propsOptions: normalizePropsOptions(type, appContext),79 emitsOptions: normalizeEmitsOptions(type, appContext),80 // emit81 emit: null,82 emitted: null,83 // props default value84 propsDefaults: EMPTY_OBJ,85 // inheritAttrs86 inheritAttrs: type.inheritAttrs,87 // state88 ctx: EMPTY_OBJ,89 data: EMPTY_OBJ,90 props: EMPTY_OBJ,91 attrs: EMPTY_OBJ,92 slots: EMPTY_OBJ,93 refs: EMPTY_OBJ,94 setupState: EMPTY_OBJ,95 setupContext: null,96 // suspense related97 suspense,98 suspenseId: suspense ? suspense.pendingId : 0,99 asyncDep: null,100 asyncResolved: false,101 // lifecycle hooks102 // not using enums here because it results in computed properties103 isMounted: false,104 isUnmounted: false,105 isDeactivated: false,106 bc: null,107 c: null,108 bm: null,109 m: null,110 bu: null,111 u: null,112 um: null,113 bum: null,114 da: null,115 a: null,116 rtg: null,117 rtc: null,118 ec: null,119 sp: null120 }; {121 instance.ctx = createDevRenderContext(instance);122 }123 instance.root = parent ? parent.root : instance;124 instance.emit = emit$1.bind(null, instance);125 // apply custom element special handling126 if (vnode.ce) {127 vnode.ce(instance);128 }129 return instance;130}131console.log( publicPropertiesMap.$data )132const isGloballyWhitelisted = /*#__PURE__*/ makeMap(GLOBALS_WHITE_LISTED);...

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Using AI Code Generation

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1const playwright = require('playwright');2(async () => {3 const browser = await playwright.chromium.launch({ headless: false });4 const context = await browser.newContext();5 const page = await context.newPage();6 const { instances } = await page._client.send('Playwright.getInstanceState');7 console.log(instances);8 await browser.close();9})();10[ { id: 1, type: 'page' } ]11const playwright = require('playwright');12(async () => {13 const browser = await playwright.chromium.launch({ headless: false });14 const context = await browser.newContext();15 const page = await context.newPage();16 const { instances } = await page._client.send('Playwright.getInstanceState');17 console.log(instances);18 await browser.close();19})();20[ { id: 1, type: 'page

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1const { chromium } = require('playwright');2const { instanceWatch } = require('playwright/lib/instanceWatch');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 await instanceWatch(browser);7})();8const { chromium } = require('playwright');9const { instanceWatch } = require('playwright/lib/instanceWatch');10(async () => {11 const browser = await chromium.launch();12 const page = await browser.newPage();13 await instanceWatch(browser);14})();15const { chromium } = require('playwright');16const { instanceWatch } = require('playwright/lib/instanceWatch');17(async () => {18 const browser = await chromium.launch();19 const page = await browser.newPage();20 await instanceWatch(browser);21})();22const { chromium } = require('playwright');23const { instanceWatch } = require('playwright/lib/instanceWatch');24(async () => {25 const browser = await chromium.launch();26 const page = await browser.newPage();27 await instanceWatch(browser);28})();29const { chromium } = require('playwright');30const { instanceWatch } = require('playwright/lib/instanceWatch');31(async () => {32 const browser = await chromium.launch();33 const page = await browser.newPage();34 await instanceWatch(browser);35})();36const { chromium } = require('playwright');37const { instanceWatch } = require('playwright/lib/instanceWatch');38(async () => {39 const browser = await chromium.launch();40 const page = await browser.newPage();41 await instanceWatch(browser);42})();

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 const context = page.context();6 const page2 = await context.newPage();7 const controller = await page2.context().newCDPSession(page2);8 await controller.send('Target.setAutoAttach', { autoAttach: true, waitForDebuggerOnStart: true, flatten: true });9 await controller.send('Target.setAutoAttach', { autoAttach: true, waitForDebuggerOnStart: true, flatten: true });10 await controller.send('Target.setDiscoverTargets', { discover: true });11 await controller.send('Target.setRemoteLocations', { locations: [{ host: 'localhost', port: 9222 }] });12 controller.on('Target.attachedToTarget', async ({ sessionId, targetInfo }) => {13 console.log(targetInfo);14 console.log(sessionId);15 const session = await controller.target().createCDPSession();16 await session.send('Runtime.runIfWaitingForDebugger');17 });18})();

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Using AI Code Generation

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1const { instanceWatch } = require('playwright/lib/server/instances');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.screenshot({ path: 'example.png' });8 await browser.close();9})();10instanceWatch((instance) => {11 console.log('Instance is created: ', instance);12 instance.on('close', () => console.log('Instance is closed'));13});14instanceWatch((instance) => {15 console.log('Instance is created: ', instance);16 instance.on('close', () => console.log('Instance is closed'));17});18instanceWatch((instance) => {19 console.log('Instance is created: ', instance);20 instance.on('close', () => console.log('Instance is closed'));21});22instanceWatch((instance) => {23 console.log('Instance is created: ', instance);24 instance.on('close', () => console.log('Instance is closed'));25});26instanceWatch((instance) => {27 console.log('Instance is created: ', instance);28 instance.on('close', () => console.log('Instance is closed'));29});30instanceWatch((instance) => {31 console.log('Instance is created: ', instance);32 instance.on('close', () => console.log('Instance is closed'));33});34instanceWatch((instance) => {35 console.log('Instance is created: ', instance);36 instance.on('close', () => console.log('Instance is closed'));37});38instanceWatch((instance) => {39 console.log('Instance is created: ', instance);40 instance.on('close', () => console.log('Instance is closed'));41});42instanceWatch((instance) => {43 console.log('Instance is created: ', instance);44 instance.on('close

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Using AI Code Generation

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1const { firefox } = require('playwright');2const fs = require('fs');3const path = require('path');4const os = require('os');5(async () => {6 const browser = await firefox.launch({ headless: false });7 const context = await browser.newContext();8 const page = await context.newPage();9 await new Promise(r => setTimeout(r, 30000));10 const pwPath = path.join(os.homedir(), 'playwright');11 const pwTracePath = path.join(pwPath, 'trace');12 const tracePath = path.join(pwTracePath, 'trace.json');13 if (fs.existsSync(pwTracePath)) {14 fs.rmdirSync(pwTracePath, { recursive: true });15 }16 fs.mkdirSync(pwTracePath, { recursive: true });17 await page.tracing.start({ screenshots: true, snapshots: true });18 await new Promise(r => setTimeout(r, 30000));19 await page.tracing.stop({ path: tracePath });20 await browser.close();21})();22{23 {24 "args": {25 "data": {26 "headers": {27 "accept-language": "en-US,en;q=0.9",28 "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/90.0.4414.0 Safari/537.36"29 },30 },

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.waitForLoadState('networkidle');7 await page.screenshot({ path: `example.png` });8 await browser.close();9})();

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1const { instanceWatch } = require('playwright-core/lib/server/browserServer');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch({ headless: false });5 const browserServer = browser._server;6 const wss = await instanceWatch(browserServer);7 wss.on('connection', (ws) => {8 ws.on('message', (message) => {9 console.log(message);10 });11 });12})();

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1const playwright = require('playwright');2const internal = require('playwright/internal');3const browserType = playwright.chromium;4const browserOptions = {};5const browserServer = await browserType.launchServer(browserOptions);6const browserURL = browserServer.wsEndpoint();7const browser = await browserType.connect({ wsEndpoint: browserURL });8const watcher = internal.instanceWatch();9watcher.on('created', async (instance) => {10 console.log('New Instance Created');11 const browser = await browserType.connect({ wsEndpoint: browserURL });12 await browser.close();13 console.log('Browser Closed');14});15watcher.on('closed', () => {16 console.log('Instance Closed');17});18watcher.on('error', (error) => {19 console.log('Error Occurred');20 console.log(error);21});22await browserServer.launchBrowser(browserURL);23await browserServer.close();24watcher.close();

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Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

  1. What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
  2. How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
  3. Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
  4. What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
  5. Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
  6. Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
  7. Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
  8. Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
  9. Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
  10. Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
  11. Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
  12. Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.

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