How to use deleteProperty method in Playwright Internal
Best JavaScript code snippet using playwright-internal
proxies-delete-property.js
Source:proxies-delete-property.js 
...28 var handler = {};29 TestForwarding(handler,30 (o, p) => delete o[p], false);31 TestForwarding(handler,32 (o, p) => Reflect.deleteProperty(o, p), false);33 TestForwarding(handler,34 (o, p) => {"use strict"; return delete o[p]}, true);35 TestForwarding(handler,36 (o, p) => {"use strict"; return Reflect.deleteProperty(o, p)}, false);37})();38(function () {39 // "Undefined" trap.40 var handler = { deleteProperty: null };41 TestForwarding(handler,42 (o, p) => delete o[p], false);43 TestForwarding(handler,44 (o, p) => Reflect.deleteProperty(o, p), false);45 TestForwarding(handler,46 (o, p) => {"use strict"; return delete o[p]}, true);47 TestForwarding(handler,48 (o, p) => {"use strict"; return Reflect.deleteProperty(o, p)}, false);49})();50(function () {51 // Invalid trap.52 var target = {};53 var handler = { deleteProperty: true };54 var proxy = new Proxy(target, handler);55 assertThrows(() => delete proxy[0], TypeError);56 assertThrows(() => Reflect.deleteProperty(proxy, 0), TypeError);57})();58function TestTrappingTrueish(myDelete) {59 var handler = { deleteProperty() {return 42} };60 var target = {};61 var proxy = new Proxy(target, handler);62 // Trap returns trueish and target doesn't own property.63 for (p of properties) {64 assertTrue(myDelete(proxy, p));65 }66 // Trap returns trueish and target property is configurable.67 for (p of properties) {68 target[p] = 42;69 assertTrue(myDelete(proxy, p));70 }71 // Trap returns trueish but target property is not configurable.72 for (p of properties) {73 Object.defineProperty(target, p, {value: 42, configurable: false});74 assertThrows(() => myDelete(proxy, p), TypeError);75 }76};77TestTrappingTrueish(78 (o, p) => delete o[p]);79TestTrappingTrueish(80 (o, p) => Reflect.deleteProperty(o, p));81TestTrappingTrueish(82 (o, p) => {"use strict"; return delete o[p]});83TestTrappingTrueish(84 (o, p) => {"use strict"; return Reflect.deleteProperty(o, p)});85function TestTrappingTrueish2(myDelete) {86 var handler = {87 deleteProperty(target, p) {88 Object.defineProperty(target, p, {configurable: false});89 return 4290 }91 };92 var target = {};93 var proxy = new Proxy(target, handler);94 // Trap returns trueish but target property is not configurable. In contrast95 // to above, here the target property was configurable before the trap call.96 for (p of properties) {97 target[p] = 42;98 assertThrows(() => myDelete(proxy, p), TypeError);99 }100};101TestTrappingTrueish2(102 (o, p) => delete o[p]);103TestTrappingTrueish2(104 (o, p) => Reflect.deleteProperty(o, p));105TestTrappingTrueish2(106 (o, p) => {"use strict"; return delete o[p]});107TestTrappingTrueish2(108 (o, p) => {"use strict"; return Reflect.deleteProperty(o, p)});109function TestTrappingFalsish(myDelete, shouldThrow) {110 var handler = { deleteProperty() {return ""} };111 var target = {};112 var proxy = new Proxy(target, handler);113 var properties =114 ["bla", "0", 1, Symbol(), {[Symbol.toPrimitive]() {return "a"}}];115 // Trap returns falsish and target doesn't own property.116 for (p of properties) {117 if (shouldThrow) {118 assertThrows(() => myDelete(proxy, p), TypeError);119 } else {120 assertFalse(myDelete(proxy, p));121 }122 }123 // Trap returns falsish and target property is configurable.124 for (p of properties) {125 target[p] = 42;126 if (shouldThrow) {127 assertThrows(() => myDelete(proxy, p), TypeError);128 } else {129 assertFalse(myDelete(proxy, p));130 }131 }132 // Trap returns falsish and target property is not configurable.133 for (p of properties) {134 Object.defineProperty(target, p, {value: 42, configurable: false});135 if (shouldThrow) {136 assertThrows(() => myDelete(proxy, p), TypeError);137 } else {138 assertFalse(myDelete(proxy, p));139 }140 }141};142TestTrappingFalsish(143 (o, p) => delete o[p], false);144TestTrappingFalsish(145 (o, p) => Reflect.deleteProperty(o, p), false);146TestTrappingFalsish(147 (o, p) => {"use strict"; return delete o[p]}, true);148TestTrappingFalsish(...
deleteProperty.js
Source:deleteProperty.js
1/* Any copyright is dedicated to the Public Domain.2 * http://creativecommons.org/licenses/publicdomain/ */3// Reflect.deleteProperty deletes properties.4var obj = {x: 1, y: 2};5assertEq(Reflect.deleteProperty(obj, "x"), true);6assertDeepEq(obj, {y: 2});7var arr = [1, 1, 2, 3, 5];8assertEq(Reflect.deleteProperty(arr, "3"), true);9assertDeepEq(arr, [1, 1, 2, , 5]);10// === Failure and error cases11// Since Reflect.deleteProperty is almost exactly identical to the non-strict12// `delete` operator, there is not much to test that would not be redundant.13// Returns true if no such property exists.14assertEq(Reflect.deleteProperty({}, "q"), true);15// Or if it's inherited.16var proto = {x: 1};17assertEq(Reflect.deleteProperty(Object.create(proto), "x"), true);18assertEq(proto.x, 1);19// Return false if asked to delete a non-configurable property.20var arr = [];21assertEq(Reflect.deleteProperty(arr, "length"), false);22assertEq(arr.hasOwnProperty("length"), true);23assertEq(Reflect.deleteProperty(this, "undefined"), false);24assertEq(this.undefined, void 0);25// Return false if a Proxy's deleteProperty handler returns a false-y value.26var value;27var proxy = new Proxy({}, {28 deleteProperty(t, k) {29 return value;30 }31});32for (value of [true, false, 0, "something", {}]) {33 assertEq(Reflect.deleteProperty(proxy, "q"), !!value);34}35// If a Proxy's handler method throws, the error is propagated.36proxy = new Proxy({}, {37 deleteProperty(t, k) { throw "vase"; }38});39assertThrowsValue(() => Reflect.deleteProperty(proxy, "prop"), "vase");40// Throw a TypeError if a Proxy's handler method returns true in violation of41// the object invariants.42proxy = new Proxy(Object.freeze({prop: 1}), {43 deleteProperty(t, k) { return true; }44});45assertThrowsInstanceOf(() => Reflect.deleteProperty(proxy, "prop"), TypeError);46// === Deleting elements from `arguments`47// Non-strict arguments element becomes unmapped48function f(x, y, z) {49 assertEq(Reflect.deleteProperty(arguments, "0"), true);50 arguments.x = 33;51 return x;52}53assertEq(f(17, 19, 23), 17);54// Frozen non-strict arguments element55function testFrozenArguments() {56 Object.freeze(arguments);57 assertEq(Reflect.deleteProperty(arguments, "0"), false);58 assertEq(arguments[0], "zero");59 assertEq(arguments[1], "one");60}61testFrozenArguments("zero", "one");62// For more Reflect.deleteProperty tests, see target.js and propertyKeys.js....
reflect-delete-property.js
Source:reflect-delete-property.js
...15 throw new Error("bad error: " + String(error));16}17shouldBe(Reflect.deleteProperty.length, 2);18shouldThrow(() => {19 Reflect.deleteProperty("hello", 42);20}, `TypeError: Reflect.deleteProperty requires the first argument be an object`);21var object = { hello: 42 };22shouldBe(object.hello, 42);23shouldBe(object.hasOwnProperty('hello'), true);24shouldBe(Reflect.deleteProperty(object, 'hello'), true);25shouldBe(object.hasOwnProperty('hello'), false);26shouldBe(Reflect.deleteProperty(object, 'hasOwnProperty'), true);27shouldBe(object.hasOwnProperty('hasOwnProperty'), false);28shouldBe(Reflect.deleteProperty([], 'length'), false);29shouldBe(Reflect.deleteProperty([0,1,2], 0), true);30var object = {31 [Symbol.iterator]: 4232};33shouldBe(object.hasOwnProperty(Symbol.iterator), true);34shouldBe(object[Symbol.iterator], 42);35shouldBe(Reflect.deleteProperty(object, Symbol.iterator), true);36shouldBe(object.hasOwnProperty(Symbol.iterator), false);37var toPropertyKey = {38 toString() {39 throw new Error('toString called.');40 }41};42shouldThrow(() => {43 Reflect.deleteProperty("hello", toPropertyKey);44}, `TypeError: Reflect.deleteProperty requires the first argument be an object`);45shouldThrow(() => {46 Reflect.deleteProperty({}, toPropertyKey);...
es.reflect.delete-property.js
Source:es.reflect.delete-property.js
...7 assert.name(deleteProperty, 'deleteProperty');8 assert.looksNative(deleteProperty);9 assert.nonEnumerable(Reflect, 'deleteProperty');10 const object = { bar: 456 };11 assert.strictEqual(deleteProperty(object, 'bar'), true);12 assert.ok(keys(object).length === 0);13 if (DESCRIPTORS) {14 assert.strictEqual(deleteProperty(defineProperty({}, 'foo', {15 value: 42,16 }), 'foo'), false);17 }18 assert.throws(() => deleteProperty(42, 'foo'), TypeError, 'throws on primitive');...
name.js
Source:name.js
1// Copyright (C) 2015 the V8 project authors. All rights reserved.2// This code is governed by the BSD license found in the LICENSE file.3/*---4es6id: 26.1.45description: >6 Reflect.deleteProperty.name value and property descriptor7info: >8 26.1.4 Reflect.deleteProperty ( target, propertyKey )9 17 ECMAScript Standard Built-in Objects10includes: [propertyHelper.js]11---*/12assert.sameValue(13 Reflect.deleteProperty.name, 'deleteProperty',14 'The value of `Reflect.deleteProperty.name` is `"deleteProperty"`'15);16verifyNotEnumerable(Reflect.deleteProperty, 'name');17verifyNotWritable(Reflect.deleteProperty, 'name');18verifyConfigurable(Reflect.deleteProperty, 'name');...
Using AI Code Generation
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.click('input[name="q"]');7 await page.keyboard.type('Hello');
Using AI Code Generation
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.click('input[name="q"]');7 await page.keyboard.type('Playwright');8 await page.keyboard.press('Enter');9 await page.waitForSelector('text="Docs"');10 const [response] = await Promise.all([11 page.waitForResponse('**/playwright.dev/**'),12 page.click('text="Docs"'),13 ]);14 console.log(cookies);15 await context.deleteCookies(cookies);16 await page.reload();17 await page.waitForSelector('text="Docs"');18 await browser.close();19})();
Using AI Code Generation
1const {chromium} = require('playwright');2(async () => {3 const browser = await chromium.launch({headless: false});4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.evaluate(() => {7 Object.defineProperty(window, 'foo', {8 get: () => {9 return 'bar';10 },11 set: (val) => {12 console.log('window.foo =', val);13 },14 });15 console.log('window.foo =', window.foo);16 window.foo = 'baz';17 delete window.foo;18 });19 await browser.close();20})();21const {chromium} = require('playwright');22(async () => {23 const browser = await chromium.launch({headless: false});24 const context = await browser.newContext();25 const page = await context.newPage();26 await page.evaluate(() => {27 Object.defineProperty(window, 'foo', {28 get: () => {29 return 'bar';30 },31 set: (val) => {32 console.log('window.foo =', val);33 },34 });35 console.log('window.foo =', window.foo);36 window.foo = 'baz';37 delete window.foo;38 console.log('window.foo =', window.foo);39 });40 await browser.close();41})();
Using AI Code Generation
1const {chromium, webkit, firefox} = 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.evaluate(() => {7 const element = document.querySelector('input[name="q"]');8 element.value = 'Hello World';9 delete element.value;10 });11 await browser.close();12})();13const obj = {foo: 'bar', baz: 42};14delete obj.foo;15console.log(obj);16{baz: 42}17JavaScript splice() Method18JavaScript split() Method19JavaScript sort() Method20JavaScript slice() Method21JavaScript shift() Method22JavaScript reverse() Method23JavaScript replace() Method24JavaScript push() Method25JavaScript pop() Method26JavaScript padEnd() Method27JavaScript padStart() Method28JavaScript map() Method29JavaScript lastIndexOf() Method30JavaScript indexOf() Method31JavaScript includes() Method32JavaScript forEach() Method33JavaScript filter() Method34JavaScript every() Method35JavaScript entries() Method36JavaScript endsWith() Method37JavaScript find() Method38JavaScript findIndex() Method39JavaScript fill() Method40JavaScript flat() Method41JavaScript from() Method42JavaScript hasOwnProperty() Method43JavaScript keys() Method44JavaScript join() Method45JavaScript keys() Method46JavaScript localeCompare() Method47JavaScript match() Method48JavaScript matchAll() Method49JavaScript reduce() Method50JavaScript reduceRight() Method51JavaScript repeat() Method52JavaScript replaceAll() Method53JavaScript search() Method54JavaScript some() Method55JavaScript shift() Method56JavaScript slice() Method57JavaScript sort() Method58JavaScript splice() Method59JavaScript split() Method60JavaScript startsWith() Method61JavaScript toString() Method62JavaScript trim() Method63JavaScript trimEnd() Method64JavaScript trimStart() Method65JavaScript unshift() Method
Using AI Code Generation
1const { webkit } = require('playwright');2(async () => {3 const browser = await webkit.launch({ headless: false });4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.type('input[aria-label="Search"]', 'playwright');7 await page.keyboard.press('Enter');8 const input = await page.$('input[aria-label="Search"]');9 await input.deleteProperty('value');10 await page.screenshot({ path: 'screenshot.png' });11 await browser.close();12})();13module.exports = {14 use: {15 }16};17{18 "scripts": {19 },20 "devDependencies": {21 }22}23const { test, expect } = require('@playwright/test');24test('Basic test', async ({ page }) => {25 await page.type('input[aria-label="Search"]', 'playwright');26 await page.keyboard.press('Enter');27 const input = await page.$('input[aria-label="Search"]');28 await input.deleteProperty('value');29 await page.screenshot({ path: 'screenshot.png' });30});
Using AI Code Generation
1const {chromium} = require('playwright');2const {deleteProperty} = require('playwright/lib/server/dom.js');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const element = await page.$('input[name="q"]');8 const handle = await element.getProperty('value');9 await deleteProperty(handle, 'value');10 await browser.close();11})();12Your name to display (optional):13Your name to display (optional):14const {chromium} = require('playwright');15const {deleteProperty} = require('playwright/lib/server/dom.js');16(async () => {17 const browser = await chromium.launch();18 const context = await browser.newContext();19 const page = await context.newPage();20 const element = await page.$('input[name="q"]');21 const handle = await element.getProperty('value');22 await deleteProperty(handle._remoteObject.objectId, 'value');23 await browser.close();24})();25Your name to display (optional):26Your name to display (optional):27const {chromium} = require('playwright');28const {deleteProperty} = require('playwright/lib/server/dom.js');29(async () => {30 const browser = await chromium.launch();31 const context = await browser.newContext();32 const page = await context.newPage();33 const element = await page.$('input[name="q"]');34 const handle = await element.getProperty('value');35 await deleteProperty(handle._remoteObject.objectId, 'value');36 await browser.close();37})();38Your name to display (optional):39Your name to display (optional
Using AI Code Generation
1const { Playwright } = require('playwright');2const playwright = new Playwright();3const { Page } = require('playwright/lib/server/page');4const page = new Page(playwright, null, null, null);5const { JSHandle } = require('playwright/lib/server/jsHandle');6const jsHandle = new JSHandle(page, null, null);7jsHandle.deleteProperty('propertyName');8const { Playwright } = require('playwright');9const playwright = new Playwright();10const { Page } = require('playwright/lib/server/page');11const page = new Page(playwright, null, null, null);12const { JSHandle } = require('playwright/lib/server/jsHandle');13const jsHandle = new JSHandle(page, null, null);14jsHandle.deleteProperty('propertyName');15const { Playwright } = require('playwright');16const playwright = new Playwright();17const { Page } = require('playwright/lib/server/page');18const page = new Page(playwright, null, null, null);19const { JSHandle } = require('playwright/lib/server/jsHandle');20const jsHandle = new JSHandle(page, null, null);21jsHandle.deleteProperty('propertyName');22const { Playwright } = require('playwright');23const playwright = new Playwright();24const { Page } = require('playwright/lib/server/page');25const page = new Page(playwright, null, null, null);26const { JSHandle } = require('playwright/lib/server/jsHandle');27const jsHandle = new JSHandle(page, null, null);28jsHandle.deleteProperty('propertyName');29const { Playwright } = require('playwright');30const playwright = new Playwright();31const { Page } = require('playwright/lib/server/page');32const page = new Page(playwright, null, null, null);33const { JSHandle } = require('playwright/lib/server/jsHandle');34const jsHandle = new JSHandle(page, null, null);35jsHandle.deleteProperty('propertyName');36const {
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