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How to use Object.preventExtensions method in chai

Best JavaScript code snippet using chai

15.2.3.12.js

Source:15.2.3.12.js

...3 * http://creativecommons.org/licenses/publicdomain/4 */5/* Object.isFrozen */6assertEq(Object.isFrozen({}), false);7assertEq(Object.isFrozen(Object.preventExtensions({})), true);8var o = Object.defineProperty({}, 'x', { writable:true, configurable:true });9Object.preventExtensions(o);10assertEq(Object.isFrozen(o), false);11var o = Object.defineProperty({}, 'x', { writable:false, configurable:true });12Object.preventExtensions(o);13assertEq(Object.isFrozen(o), false);14var o = Object.defineProperty({}, 'x', { writable:true, configurable:false });15Object.preventExtensions(o);16assertEq(Object.isFrozen(o), false);17var o = Object.defineProperty({}, 'x', { writable:false, configurable:false });18assertEq(Object.isFrozen(o), false);19var o = Object.defineProperty({}, 'x', { writable:false, configurable:false });20Object.preventExtensions(o);21assertEq(Object.isFrozen(o), true);22var o = Object.defineProperties({}, { x: { writable:true,  configurable:true },23                                      y: { writable:false, configurable:false } });24Object.preventExtensions(o);25assertEq(Object.isFrozen(o), false);26var o = Object.defineProperties({}, { x: { writable:false, configurable:false },27                                      y: { writable:true,  configurable:true } });28Object.preventExtensions(o);29assertEq(Object.isFrozen(o), false);30var o = Object.defineProperties({}, { x: { writable:true,  configurable:true },31                                      y: { writable:true,  configurable:true } });32Object.preventExtensions(o);33assertEq(Object.isFrozen(o), false);...

preventExtensions.js

Source:preventExtensions.js

2 * Any copyright is dedicated to the Public Domain.3 * https://creativecommons.org/publicdomain/zero/1.0/4 */5var BUGNUMBER = 1073446;6var summary = "Object.preventExtensions() should return its argument with no conversion when the argument is a primitive value";7print(BUGNUMBER + ": " + summary);8assertEq(Object.preventExtensions(), undefined);9assertEq(Object.preventExtensions(undefined), undefined);10assertEq(Object.preventExtensions(null), null);11assertEq(Object.preventExtensions(1), 1);12assertEq(Object.preventExtensions("foo"), "foo");13assertEq(Object.preventExtensions(true), true);14if (typeof Symbol === "function") {15    assertEq(Object.preventExtensions(Symbol.for("foo")), Symbol.for("foo"));16}17if (typeof reportCompare === "function")...

Using AI Code Generation

1var obj = Object.preventExtensions({2});3var obj = Object.seal({4});5var obj = Object.freeze({6});7var obj = Object.create(null);8var obj = Object.defineProperty({}, 'property1', {9});10var obj = Object.defineProperties({}, {11  'property1': {12  },13  'property2': {14  }15});16var obj = Object.assign({}, { a: 1 }, { b: 2 });17var obj = Object.keys({ a: 1, b: 2, c: 3 });18var obj = Object.values({ a: 1, b: 2, c: 3 });19var obj = Object.entries({ a: 1, b: 2, c: 3 });20var obj = Object.getOwnPropertyNames({ a: 1, b: 2, c: 3 });21var obj = Object.getOwnPropertySymbols({ a: 1, b: 2, c: 3 });22var obj = Object.getPrototypeOf({ a: 1, b: 2, c: 3 });23var obj = Object.setPrototypeOf({ a: 1, b: 2, c: 3 });24var obj = Object.is(1, 1);25var obj = Object.isExtensible({ a: 1, b: 2, c: 3 });26var obj = Object.isSealed({ a:

Using AI Code Generation

1var obj = { name: "RajiniKanth", age: 33, hasPets : false };2function printAllValues(obj) {3console.log(Object.values(obj));4}5printAllValues(obj);6var obj = { name: "ISRO", age: 35, role: "Scientist" };7function convertListToObject(obj) {8console.log(Object.entries(obj));9}10convertListToObject(obj);11var obj = { name: "Freeze", age: 20, role: "Singer" };12function transformFirstAndLast(arr) {13var newObject = {};14newObject[arr[0]] = arr[arr.length-1];15return newObject;16}17var arr = ["GUVI", "I", "am", "a geek"];18console.log(transformFirstAndLast(arr));19var obj = { name: "ISRO", age: 35, role: "Scientist" };20function printAllKeys(obj) {21console.log(Object.keys(obj));22}23printAllKeys(obj);24var obj = { name: "RajiniKanth", age: 33, hasPets : false };25function printAllValues(obj) {26console.log(Object.values(obj));27}28printAllValues(obj);29var obj = { name: "ISRO", age: 35, role: "Scientist" };30function convertListToObject(obj) {31console.log(Object.entries(obj));32}33convertListToObject(obj);

Using AI Code Generation

1var obj = {}2Object.preventExtensions(obj);3obj.foo = 123;4var obj = {}5Object.seal(obj);6obj.foo = 123;7var obj = {}8Object.freeze(obj);9obj.foo = 123;10var obj = {}11Object.defineProperty(obj,'foo',{value:123});12obj.foo = 456;13var obj = {}14Object.defineProperties(obj,{15	'foo':{16	}17});18obj.foo = 456;19var obj1 = {20}21var obj2 = Object.create(obj1);22obj2.foo = 456;23var obj1 = {24}25var obj2 = Object.create(obj1);26var obj = {27}28var obj = {29}30var obj = {31}32var obj = {33}34var obj = {35}36var obj = {37}

Using AI Code Generation

1var obj = {};2Object.preventExtensions(obj);3obj.foo = "bar";4var obj = {};5Object.seal(obj);6obj.foo = "bar";7var obj = {};8Object.freeze(obj);9obj.foo = "bar";10Recommended Posts: JavaScript | Object.isExtensible()11JavaScript | Object.isSealed()12JavaScript | Object.isFrozen()13JavaScript | Object.is()14JavaScript | Object.getOwnPropertyNames()15JavaScript | Object.keys()16JavaScript | Object.values()17JavaScript | Object.entries()18JavaScript | Object.defineProperty()19JavaScript | Object.defineProperties()20JavaScript | Object.getOwnPropertyDescriptor()21JavaScript | Object.getPrototypeOf()22JavaScript | Object.setPrototypeOf()23JavaScript | Object.create()24JavaScript | Object.assign()25JavaScript | Object.fromEntries()26JavaScript | Object.seal()27JavaScript | Object.freeze()28JavaScript | Object.preventExtensions()29JavaScript | Object.isSealed()

Using AI Code Generation

1var obj = {2};3Object.preventExtensions(obj);4obj.age = 25;5var obj = {6};7Object.seal(obj);8obj.age = 25;9var obj = {10};11Object.freeze(obj);12obj.age = 25;13var obj = {};14Object.defineProperty(obj, 'name', {15});16var obj = {};17Object.defineProperties(obj, {18    name: {19    },20    age: {21    }22});23var obj = {};24var newObj = Object.create(obj);25newObj.name = 'John';26var obj = {};27var newObj = Object.create(obj);28var obj = {29};30var obj = {31};32var obj = {33};34Object.preventExtensions(obj);

Using AI Code Generation

1var obj = {2};3var obj1 = Object.preventExtensions(obj);4var obj = {5};6var obj1 = Object.seal(obj);7var obj = {8};9var obj1 = Object.freeze(obj);10var obj = {};11var obj1 = Object.defineProperty(obj, "name", {12});13var obj = {};14var obj1 = Object.defineProperties(obj, {15  name: {16  },17  age: {18  }19});20var obj = {};21var obj1 = Object.create(obj);22var obj = {

Using AI Code Generation

1var obj = {2};3Object.preventExtensions(obj);4obj.job = "Engineer";5console.log(obj.job);6var obj = {7};8Object.seal(obj);9obj.age = 31;10console.log(obj.age);11delete obj.name;12console.log(obj.name);13var obj = {14};15Object.freeze(obj);16obj.age = 31;17console.log(obj.age);18delete obj.name;19console.log(obj.name);20var obj = {21};22console.log(Object.getOwnPropertyNames(obj));23var obj = {24};25console.log(Object.getOwnPropertyDescriptor(obj, "name"));26var obj = {};27var a = Symbol("a");28var b = Symbol.for("b");29obj[a] = "localSymbol";30obj[b] = "globalSymbol";31var objectSymbols = Object.getOwnPropertySymbols(obj);32console.log(objectSymbols.length);33console.log(objectSymbols[0]);34console.log(objectSymbols[1]);35console.log(obj[objectSymbols[0]]);36console.log(obj[objectSymbols[1]]);37var obj = {};38console.log(Object.getPrototypeOf(obj) === Object.prototype);39var obj = {40};41console.log(Object.isExtensible(obj

Using AI Code Generation

1var obj = {2};3var obj1 = Object.preventExtensions(obj);4console.log(obj1);5var obj2 = {6};7var obj3 = Object.seal(obj2);8console.log(obj3);9var obj4 = {10};11var obj5 = Object.freeze(obj4);12console.log(obj5);

Using AI Code Generation

1var obj = {2};3Object.preventExtensions(obj);4obj.name = "Peter";5obj.city = "London";6console.log(obj.name);7console.log(obj.city);8var obj = {9};10Object.seal(obj);11obj.name = "Peter";12obj.city = "London";13console.log(obj.name);14console.log(obj.city);15var obj = {16};17Object.freeze(obj);18obj.name = "Peter";19obj.city = "London";20console.log(obj.name);21console.log(obj.city);22Recommended Posts: JavaScript | Object.isSealed()23JavaScript | Object.isFrozen()24JavaScript | Object.isExtensible()25JavaScript | Object.is()26JavaScript | Object.getOwnPropertyDescriptor()27JavaScript | Object.getOwnPropertyNames()28JavaScript | Object.getOwnPropertySymbols()29JavaScript | Object.getPrototypeOf()30JavaScript | Object.setPrototypeOf()31JavaScript | Object.keys()32JavaScript | Object.values()33JavaScript | Object.entries()34JavaScript | Object.assign()35JavaScript | Object.create()36JavaScript | Object.defineProperty()37JavaScript | Object.defineProperties()38JavaScript | Object.fromEntries()39JavaScript | Object.prototype.hasOwnProperty()

Using AI Code Generation

1var obj = {2};3Object.preventExtensions(obj);4obj.age = 25;5var obj1 = {6};7Object.preventExtensions(obj1);8var obj2 = {9};10Object.seal(obj2);11obj2.age = 25;12delete obj2.name;13var obj3 = {14};15Object.seal(obj3);16var obj4 = {17};18Object.freeze(obj4);19obj4.age = 25;20delete obj4.name;21obj4.name = "Rahul";22var obj5 = {23};24Object.freeze(obj5);25var obj6 = {26};27Object.defineProperty(obj6, "name", {28});29console.log(Object.getOwnPropertyDescriptor(obj6, "name"));

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