How to use shallowReadonly method in Playwright Internal

Best JavaScript code snippet using playwright-internal

setup.js

Source:setup.js Github

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...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 },...

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Reactive.jsx

Source:Reactive.jsx Github

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...177 <div className="code">178 <pre>179 <code>180 {`181 const state = shallowReadonly({182 foo: 1,183 nested: {184 bar: 2185 }186 })187 // 改变 state 本身的 property 将失败188 state.foo++189 // ...但适用于嵌套对象190 isReadonly(state.nested) // false191 state.nested.bar++ // 适用192 `}193 </code>194 </pre>195 </div>...

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手写函数readonly.js

Source:手写函数readonly.js Github

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1function shallowReadonly(obj) {2 return new Proxy(obj, {3 get(obj, key) {4 return obj[key];5 },6 set(obj, key, value) {7 console.warn(`${key}是只读的，不可赋值`);8 /*9 shallowReadonly 只读 意味着 只能get 不能set10 所以只需要将 set 代码块的语句 删除掉11 并添加一个 警告提醒 即可12 */13 }14 })15}16function readonly(obj) {17 /* 以下代码为 reactive 的源码 */18 if (typeof obj === 'object') {19 if (obj instanceof Array) {20 // 如果是数组，遍历判断每个元素是否是对象21 // 如果元素也是对象，则 也需要包装22 obj.forEach((item, index) => {23 if (typeof item === 'object') {24 obj[index] = readonly(item)25 }26 })27 } else {28 // 如果是一个对象，则取出对象属性的取值29 // 判断取值是否又是一个对象，如果是，也需要包装30 for (let key in obj) {31 let item = obj[key]32 if (typeof item === 'object') {33 obj[key] = readonly(item)34 }35 }36 }37 return new Proxy(obj, {38 get(obj, key) {39 return obj[key];40 },41 set(obj, key, value) {42 console.warn(`${key}是只读的，不可赋值`);43 /*44 shallowReadonly 只读 意味着 只能get 不能set45 所以只需要将 set 代码块的语句 删除掉46 并添加一个 警告提醒 即可47 */48 }49 })50 } else {51 console.warn(`${obj} is not a object`);52 }53}54let object = {55 name: 1,56 id: 2,57 attr: {58 height:359 }60}61let state1 = shallowReadonly(object);62console.log(object,'object-origin');63state1.name = 'name';64state1.attr.height = 'height'65/* name是只读的，不可赋值 */66/* 不会检测到 height 改变 */67/* shallowReadonly 用于创建一个只读元素，单并不是递归只读，只有第一层是只读的 */68console.log(state1);69console.log(object,'object');70let state2 = readonly(object)71console.log(state2,'origin');72state2.name = 'name';73state2.attr.height = 'height_height'74console.log(state2, 'changed-----');75/*...

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shallowReactive.js

Source:shallowReactive.js Github

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...9}10// shallowReactive11// function shallowReactive(obj) {12 // shallowReadonly13function shallowReadonly(obj) {14 return new Proxy(obj, {15 get(obj, key) {16 return obj[key]17 },18 set(obj, key, value) {19 // obj[key] = value;20 // console.log("更新ui界面")21 // return true;22 console.warn(`message:${key}是只读的，不能赋值`)23 }24 })25}26// reactive27// let obj={name:"lnj",age:18};28function reactive(obj) {29 if (typeof obj === 'object') {30 if(obj instanceof Array){31 // 如果是一个数组，那么取出数组中的每一个元素，判断每一个元素有是否又是一个兑现个，如果又是一个对象，那么也需要包装成Proxy32 obj.forEach((item,index)=>{33 if(typeof item=='object'){34 obj[index]=reactive(item)35 }36 })37 }else{38 // 如是一个对象，那么取出对象属性的取值，判断对象属性的取值是否又是一个对象，那么也需要包装成proxy39 for(let key in obj){40 let item =obj[key];41 if(typeof item ==='object'){42 obj[key]=reactive(item)43 }44 }45 }46 return new Proxy(obj, {47 get(obj, key) {48 return obj[key]49 },50 set(obj, key, value) {51 obj[key] = value;52 console.log("更新ui界面")53 return true;54 }55 })56 } else {57 console.warn({ message: `${obj}is not object` })58 }59}60let obj = {61 a: 'a',62 gf: {63 b: 'b',64 f: {65 c: 'c',66 s: {67 d: 'd'68 }69 }70 }71};72/**73let state=shallowReactive(obj);74state.a="1"75state.gf.b="2"76state.gf.f.c="3"77 */78// let state = shallowRef(obj)79// state.value.a="1"80// state.value.gf.b="2"81// state.value.gf.f.c="3"82// state.value = {83// a: 1,84// gf: {85// b: 2,86// f: {87// c: 3,88// s: {89// d: 490// }91// }92// }93// }94// let state=reactive(obj)95// state.a="1"96// state.gf.b="2"97// state.gf.f.c="3"98// let arr=[{id:1,name:'zhangsan'},{id:2,name:'ls'}]99// let state=reactive(arr)100// state[0].name='wangw'101// state[1].name='aaa'102let state=shallowReadonly(obj)...

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person.js

Source:person.js Github

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...54export const reactiveReadonly = readonly(objectReactive)55/**56 * person 的 shallowReadonly 响应式代理57 */58export const objectShallowReadonly = shallowReadonly(person)59/**60 * reactive 的 shallowReadonly 响应式代理61 */62export const reactiveShallowReadonly = shallowReadonly(objectReactive)...

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readonly.js

Source:readonly.js Github

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...6 if (obj instanceof Array) {7 //数组8 obj.forEach((item, index) => {9 if (typeof item === 'object') {10 obj[index] = shallowReadonly(item)11 }12 })13 } else {14 for (let key in obj) {15 if (typeof obj[key] === 'object') {16 obj[key] = shallowReadonly(obj[key])17 }18 }19 }20 }21 return shallowReadonly(obj)22}23function shallowReadonly(obj) {24 return new Proxy(obj, {25 get(obj, key) {26 return obj[key]27 },28 set(obj, key, value) {29 console.warn(`obj的${key}属性不能赋值`)30 }31 })32}33let data = {34 a: 1,35 b: {36 c: 3,37 d: {38 f: 4,39 }40 }41}42let state = shallowReadonly(data)43state.a = 244state.b.c = 'c'45console.log(state)46let state1 = readonly(data)47state1.a = 248state1.b.c = 'c'49state1.b.d.f = 'f'...

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base.js

Source:base.js Github

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...4 return reactive(init)5}6export const store = (init, factory) => {7 const state = createState(deepClone(init))8 return () => shallowReadonly({ state, ...factory(state) })...

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useShallow.js

Source:useShallow.js Github

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1import { reactive, shallowReadonly } from 'vue'2export default function useShallow() {3 const n = shallowReadonly(reactive({a:{b:{c:{d:100}}}}))4 // setTimeout(()=>n.a.b.c.d=2000, 2000)5 return n...

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Using AI Code Generation

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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.screenshot({ path: 'example.png' });7 await browser.close();8})();

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Using AI Code Generation

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1const { chromium, devices } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const input = await page.$('input[name="q"]');7 const value = await page.evaluate(input => input.value, input);8 console.log(value);9 await browser.close();10})();11const { chromium, devices } = require('playwright');12(async () => {13 const browser = await chromium.launch();14 const context = await browser.newContext();15 const page = await context.newPage();16 const input = await page.$('input[name="q"]');17 const value = await page.evaluate(input => input.value, shallowReadonly(input));18 console.log(value);19 await browser.close();20})();21const { chromium, devices } = require('playwright');22const { shallowReadonly } = require('playwright/lib/utils/utils');23(async () => {24 const browser = await chromium.launch();25 const context = await browser.newContext();26 const page = await context.newPage();

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Using AI Code Generation

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1const {chromium} = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 const elementHandle = await page.$('text=Playwright');6 const element = await elementHandle.evaluateHandle((e) => e);7 const innerText = await element.evaluate((e) => e.innerText);8 console.log(innerText);9 await browser.close();10})();11const {chromium} = require('playwright');12(async () => {13 const browser = await chromium.launch();14 const page = await browser.newPage();15 const elementHandle = await page.$('text=Playwright');16 const innerText = await elementHandle.innerText();17 console.log(innerText);18 await browser.close();19})();

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Using AI Code Generation

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1const { shallowReadonly } = require('playwright/lib/utils/utils');2const obj = { a: 1, b: 2 };3const readonlyObj = shallowReadonly(obj);4readonlyObj.a = 2;5const { shallowReadonly } = require('playwright/lib/utils/utils');6const options = { headless: false };7const readonlyOptions = shallowReadonly(options);8readonlyOptions.headless = true;

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Using AI Code Generation

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1const playwright = require('playwright');2const { shallowReadonly } = playwright._internal;3const obj = { a: 1, b: 2 };4const readonlyObj = shallowReadonly(obj);5const playwright = require('playwright');6const { deepReadonly } = playwright._internal;7const obj = { a: 1, b: 2, c: { d: 3 } };8const readonlyObj = deepReadonly(obj);9const playwright = require('playwright');10const { isDeepEqual } = playwright._internal;11const obj1 = { a: 1, b: 2, c: { d: 3 } };12const obj2 = { a: 1, b: 2, c: { d: 3 } };13const obj3 = { a: 1, b: 2, c: { d: 4 } };14const playwright = require('playwright');15const { deepClone } = playwright._internal;16const obj = { a: 1, b: 2, c: { d: 3 } };17const clone = deepClone(obj);18const playwright = require('playwright');19const { assert } = playwright._internal;20assert(false, 'This will throw an error');21assert(true, 'This will not throw an error');22const playwright = require('playwright');23const { debugAssert }

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Using AI Code Generation

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1const { shallowReadonly } = require("@playwright/test/lib/utils/utils");2const { test } = require("@playwright/test");3const { expect } = require("expect");4test("test", async ({ page }) => {5 const obj = { a: 1 };6 const readonly = shallowReadonly(obj);7 expect(readonly).toEqual({ a: 1 });8});9AssertionError: expected { a: 1 } to deeply equal { a: 1 }10const { shallowReadonly } = require("@playwright/test/lib/utils/utils");11const { test } = require("@playwright/test");12const { expect } = require("expect");13test("test", async ({ page }) => {14 const obj = { a: 1 };15 const readonly = shallowReadonly(obj);16 expect(readonly).toEqual({ a: 1 });17});18const { expect } = require("@playwright/test");19const { expect } = require("expect");20const { expect } = require("@playwright/test");21const { expect } = require("expect");22const { shallowReadonly } = require("@playwright/test/lib/utils/utils");23const { test } = require("@playwright/test");24const { expect } = require("@playwright/test");25test("test", async ({ page }) => {26 const obj = { a: 1 };27 const readonly = shallowReadonly(obj);28 expect(readonly).toEqual({ a: 1 });29});

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Using AI Code Generation

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1const { shallowReadonly } = require('@playwright/test/lib/utils/utils');2const obj = { a: 1, b: 2 };3const ro = shallowReadonly(obj);4const { shallowReadonly } = require('@playwright/test/lib/utils/utils').utils;5test('test', async ({ page }) => {6 const obj = { a: 1, b: 2 };7 page.context().addInitScript(() => {8 window.shallowReadonly = (obj) => {9 for (const key in obj) {10 if (typeof obj[key] === 'object')11 obj[key] = shallowReadonly(obj[key]);12 Object.defineProperty(obj, key, { writable: false });13 }14 return obj;15 };16 });17 await page.evaluate(async () => {18 const obj = { a: 1, b: 2 };19 const ro = shallowReadonly(obj);20 });21});

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Using AI Code Generation

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1const { shallowReadonly } = require("@playwright/test/lib/utils");2const { chromium } = require("playwright");3const { test } = require("@playwright/test");4test.describe("My Test Suite", () => {5 test("My Test", async ({ page }) => {6 const context = page.context();7 const browser = context.browser();8 const browserContextOptions = browser.options();9 const browserOptions = shallowReadonly(browserContextOptions);10 const browserType = browser.type();11 const browserName = browserType.name();12 const browserPath = browserType.executablePath();13 const browserTypeOptions = browserType.options();14 const browserTypeOptionsShallow = shallowReadonly(browserTypeOptions);15 const browserTypeLaunchOptions = browserType.launchOptions();16 const browserTypeLaunchOptionsShallow = shallowReadonly(browserTypeLaunchOptions);17 const browserTypeDefaultArgs = browserType.defaultArgs();18 const browserTypeDefaultArgsShallow = shallowReadonly(browserTypeDefaultArgs);19 console.log("browserContextOptions", browserContextOptions);20 console.log("browserOptions", browserOptions);21 console.log("browserTypeOptions", browserTypeOptions);22 console.log("browserTypeOptionsShallow", browserTypeOptionsShallow);23 console.log("browserTypeLaunchOptions", browserTypeLaunchOptions);24 console.log("browserTypeLaunchOptionsShallow", browserTypeLaunchOptionsShallow);25 console.log("browserTypeDefaultArgs", browserTypeDefaultArgs);26 console.log("browserTypeDefaultArgsShallow", browserTypeDefaultArgsShallow);27 console.log("browserName", browserName);28 console.log("browserPath", browserPath);29 });30});

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Playwright tutorial

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