# How to use isStrictlyEqual method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

booleans-comparison-operators.js

Source:booleans-comparison-operators.js

`1// ============================== INSTRUCTIONS ==============================2// ================================================================================3// Challenge: Booleans: Comparison Operators4// Comparison Operators5// In programming, when working with data, we often need to compare different values. To do this, we use a series of operators called comparison operators. Check out this list of the most common comparison operators:6// < - Less than7// > - Greater than8// <= - Less than or equal to9// >= - Greater than or equal to10// == - Is loosely equal to11// === - Is strictly equal to12// != - Is not loosely equal to13// !== - Is not strictly equal to14// The first four are probably pretty familiar to you from primary school math class, but things start to get a little tricky when we talk about equality in JavaScript.15// First, we already know that a single equals sign (=) is used to assign value to a variable, so we can't use that to compare to values unfortunately.16// So let's start with loose equality (==). This operator is used to compare if 2 values have the same value, even if they aren't necessarily the same type.17// 1 == 1 // true18// "1" == 1 // true19// 1 == '1' // true20// true == true // true21// true == 'true' // false22// In the example above, all of these comparisons are true, because the value is the same even though they may have a different data type.23// For 2 values to be strictly equal (===) to each other, they need to not only have the same value, but also must have the same data type:24// 2 === 2 // true25// "2" === 2 // false26// 2 === '2' // false27// true === true // true28// true === 'true' // false29// Don't worry if this still seems a little confusing. We'll come back to it a bit more when we get to conditional statements in the second half of the precourse.30// Challenge31// For the following problems, you will be using the comparison operators (==, ===, <, >, <=, >=) to compare two variables and see if the comparison yields true or false. You will assign the resulting boolean to a variable. For example:32// let first = 7;33// let second = 8;34// let isFirstBigger = first > second;35// console.log(isFirstBigger); // should log: false36// first = 16;37// console.log(isFirstBigger); // should log: true38// 1. Compare small and large using the < operator. Assign the result to a variable called isSmaller.39// 2. Compare num and string. First, use the == operator to compare the two variables, and assign the result to a variable calledisLooselyEqual. Second, use the === operator to compare the variables; assign the result to a variable called isStrictlyEqual.40// 3. Compare isTrue and isFalse using the !== operator. Assign the result to a variable called isTrueNotFalse.41// Continue to experiment with different comparison operators and data types. You can see a full list of comparison operators here.42// ========================== SOLUTION ======================================43// ================================================================================44// 1.45const small = 2;46const large = 5342;47// ADD CODE BELOW (isSmaller)48let isSmaller = small < large;49// console.log(isSmaller);50// 2.51const num = 45;52const string = '45';53// ADD CODE BELOW (isLooselyEqual and isStrictlyEqual)54let isLooselyEqual = num == string;55let isStrictlyEqual = num === string;56let isBigger = num > string;57// console.log(isLooselyEqual);58// console.log(isStrictlyEqual);59console.log(isBigger);60// 3.61const isTrue = true;62const isFalse = false;63// ADD CODE BELOW (isTrueNotFalse)64let isTrueNotFalse = isTrue !== isFalse;65// Uncomment these to check your work!66console.log('Is 2 < 5342?');67console.log(isSmaller);68console.log('Is 45 loosely equal to "45"?');69console.log(isLooselyEqual);70console.log('Is 45 strictly equal to "45"?');71console.log(isStrictlyEqual);72console.log('Is true not equal to false?');...`

booleans.js

Source:booleans.js

`1// 1.2const small = 2;3const large = 5342;4// ADD CODE BELOW (isSmaller)5let isSmaller = small < large;6console.log(isSmaller);7// 2.8const num = 45;9const string = "45";10// ADD CODE BELOW (isLooselyEqual and isStrictlyEqual)11let isLooselyEqual = num == string;12let isStrictlyEqual = num === string;13 console.log(isLooselyEqual);14 console.log(isStrictlyEqual);15// 3.16const isTrue = true;17const isFalse = false;18// ADD CODE BELOW (isTrueNotFalse)19let isTrueNotFalse = isTrue !== isFalse;20console.log(isTrueNotFalse);21//Uncomment these to check your work! 22 console.log('Is 2 < 5342?');23 console.log(isSmaller);24console.log('Is 45 loosely equal to "45"?'); 25 console.log(isLooselyEqual);26 console.log('Is 45 strictly equal to "45"?');27 console.log(isStrictlyEqual);28 console.log('Is true not equal to false?');...`

BooleanAssignment.js

Source:BooleanAssignment.js

`1// 1.2const small = 2;3const large = 5342;4// ADD CODE BELOW (isSmaller)5let isSmaller = small < large6// 2.7const num = 45;8const string = "45";9// ADD CODE BELOW (isLooselyEqual and isStrictlyEqual)10isLooselyEqual = num == string11isStrictlyEqual = num === string12 13// 3.14const isTrue = true;15const isFalse = false;16// ADD CODE BELOW (isTrueNotFalse)17isTrueNotFalse = isTrue !== isFalse18// Uncomment these to check your work! 19console.log('Is 2 < 5342?');20console.log(isSmaller);21console.log('Is 45 loosely equal to "45"?'); 22console.log(isLooselyEqual);23console.log('Is 45 strictly equal to "45"?');24console.log(isStrictlyEqual);25console.log('Is true not equal to false?');...`

Using AI Code Generation

`1const fc = require('fast-check');2const assert = require('assert');3const isStrictlyEqual = (a, b) => a === b;4const isStrictlyEqualArb = fc.tuple(fc.anything(), fc.anything()).map(([a, b]) => [a, b, isStrictlyEqual(a, b)]);5fc.assert(fc.property(isStrictlyEqualArb, ([a, b, result]) => {6 assert.strictEqual(isStrictlyEqual(a, b), result);7}));8const fc = require('fast-check');9const assert = require('assert');10const isStrictlyEqual = (a, b) => a === b;11const isStrictlyEqualArb = fc.tuple(fc.anything(), fc.anything()).map(([a, b]) => [a, b, isStrictlyEqual(a, b)]);12fc.assert(fc.property(isStrictlyEqualArb, ([a, b, result]) => {13 assert.strictEqual(isStrictlyEqual(a, b), result);14}));`

Using AI Code Generation

`1const fc = require('fast-check');2const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictlyEqualArbitrary.js');3const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictlyEqualArbitrary.js');4const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictlyEqualArbitrary.js');5const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictlyEqualArbitrary.js');6const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictlyEqualArbitrary.js');7const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictlyEqualArbitrary.js');8const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictlyEqualArbitrary.js');9const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictlyEqualArbitrary.js');10const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictlyEqualArbitrary.js');11const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictlyEqualArbitrary.js');12const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictlyEqualArbitrary.js');13const { isStrictlyEqual } = require('fast-check`

Using AI Code Generation

`1const { isStrictlyEqual } = require('fast-check');2const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictEqualComparableArbitrary');3const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictEqualComparableArbitrary.js');4const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictEqualComparableArbitrary.js');5const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictEqualComparableArbitrary.js');6const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictEqualComparableArbitrary.js');7const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictEqualComparableArbitrary.js');8const { isStrictlyEqual } =`

Using AI Code Generation

`1const { isStrictlyEqual } = require("fast-check");2const { is } = require("ramda");3const a = { a: 1, b: 2 };4const b = { a: 1, b: 2 };5const result = isStrictlyEqual(a, b);6const result2 = is(a, b);`

Using AI Code Generation

`1const { isStrictlyEqual } = require('fast-check');2const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictlyEqualArbitrary');3const { isStrictlyEqual } = require('fast-check/lib/check/arbitrary/definition/StrictlyEqualArbitrary');4import { Arbitrary } from './definition/Arbitrary';5import { ArbitraryWithShrink } from './definition/ArbitraryWithShrink';6import { Shrinkable } from './definition/Shrinkable';7import { Stream } from './stream/Stream';8import { cloneMethod, convertFromNext } from './check/symbols';9import { NextArbitrary } from './check/arbitrary/definition/NextArbitrary';10import { NextValue } from './check/arbitrary/definition/NextValue';11import { NextShrinkable } from './check/arbitrary/definition/NextShrinkable';12import { Random } from './random/generator/Random';13import { integer } from './arbitrary/integer';14import { tuple } from './arbitrary/tuple';15import { cloneValue } from './check/arbitrary/definition/CloneArbitrary';16class StrictlyEqualArbitrary<T> extends NextArbitrary<T> {17 constructor(readonly reference: T) {18 super();19 }20 generate(mrng: Random): NextValue<T> {21 return new NextValue(cloneValue(this.reference));22 }23 canShrinkWithoutContext(value: unknown): value is T {24 return isStrictlyEqual(value, this.reference);25 }26 shrink(value: T, context?: unknown): Stream<NextShrinkable<T>> {27 if (context === undefined) {28 return Stream.nil();29 }30 return Stream.of(new NextShrinkable(cloneValue(this.reference), context));`

Using AI Code Generation

`1import {isStrictlyEqual} from 'fast-check';2const a = {a: 1};3const b = {a: 1};4console.log(isStrictlyEqual(a, b));5console.log(isStrictlyEqual(a, a));6console.log(isStrictlyEqual(b, b));7export function isStrictlyEqual<T>(a: T, b: T): boolean {8 if (a === b) return true;9 if (a === null || b === null) return false;10 if (a === undefined || b === undefined) return false;11 if (typeof a !== typeof b) return false;12 if (typeof a !== 'object') return false;13 return (a as any).equals !== undefined ? (a as any).equals(b) : deepEqual(a, b);14}15function deepEqual(a: unknown, b: unknown): boolean {16 if (a === b) return true;17 if (a === null || b === null) return false;18 if (a === undefined || b === undefined) return false;19 if (typeof a !== typeof b) return false;20 if (typeof a !== 'object') return false;21 if (Array.isArray(a) && Array.isArray(b)) return arrayEqual(a as unknown[], b as unknown[]);22 if (Array.isArray(a) || Array.isArray(b)) return false;23 if (a instanceof Date && b instanceof Date) return a.getTime() === b.getTime();24 if (a instanceof Date || b instanceof Date) return false;25 if (a instanceof RegExp && b instanceof RegExp) return a.toString() === b.toString();26 if (a instanceof RegExp || b instanceof RegExp) return false;27 if (typeof a !== 'object' || typeof b !== 'object') return false;28 return objectEqual(a as Record<string, unknown>, b as Record<string, unknown>);29}30function arrayEqual(a: unknown[],`

Using AI Code Generation

`1const fc = require("fast-check");2const { isStrictlyEqual } = require("fast-check/lib/check/arbitrary/EqualityArbitrary");3const { set } = require("lodash");4const { isObject } = require("lodash");5const arb = fc.object();6const arb2 = fc.object();7const arb3 = fc.object();8fc.assert(9 fc.property(arb, arb2, arb3, (a, b, c) => {10 let aCopy = Object.assign({}, a);11 let bCopy = Object.assign({}, b);12 let cCopy = Object.assign({}, c);13 if (isObject(aCopy) && isObject(bCopy) && isObject(cCopy)) {14 set(aCopy, "a", 1);15 set(bCopy, "b", 1);16 set(cCopy, "c", 1);17 }18 return isStrictlyEqual(aCopy, bCopy) === isStrictlyEqual(aCopy, cCopy);19 })20);21const fc = require("fast-check");22const { isStrictlyEqual } = require("fast-check/lib/check/arbitrary/EqualityArbitrary");23const { set } = require("lodash");24const { isObject } = require("lodash");25const arb = fc.object();26const arb2 = fc.object();27const arb3 = fc.object();28fc.assert(29 fc.property(arb, arb2, arb3, (a, b, c) => {30 let aCopy = Object.assign({}, a);31 let bCopy = Object.assign({}, b);32 let cCopy = Object.assign({}, c);33 if (isObject(aCopy) && isObject(bCopy) && isObject(cCopy)) {34 set(aCopy, "a", 1);35 set(bCopy, "b", 1);36 set(cCopy, "c", 1);37 }38 return isStrictlyEqual(aCopy, bCopy) === isStrictlyEqual(aCopy, cCopy);39 })40);41const fc = require("fast-check");42const {`

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