How to check that two objects have the same set of property names and values! (javascipt or typescript)!

 

 

 

 

 

// ============================

// Basic

// ============================

const data1 = {firstName: 'John', lastName: 'Smith'};

const data2 = {firstName: 'Jane', lastName: 'Smith'};

JSON.stringify(data1) === JSON.stringify(data2)

// => true

// ============================

// Basic 2

// ============================

// lodash

const _ = require('lodash');

const object = { 'a': 1 };

const other = { 'a': 1 };

_.isEqual(object, other);

// => true

// ============================

// advanced 1

// ============================

function deepEqual(object1, object2) {

const keys1 = Object.keys(object1);

const keys2 = Object.keys(object2);

if (keys1.length !== keys2.length) {

return false;

}

for (const key of keys1) {

const val1 = object1[key];

const val2 = object2[key];

const areObjects = isObject(val1) && isObject(val2);

if (

areObjects && !deepEqual(val1, val2) ||

!areObjects && val1 !== val2

) {

return false;

}

}

return true;

}

function isObject(object) {

return object != null && typeof object === 'object';

}

const hero1 = {

name: 'Batman',

address: {

city: 'Gotham'

}

};

const hero2 = {

name: 'Batman',

address: {

city: 'Gotham'

}

};

deepEqual(hero1, hero2); // => true

// ============================

// Advanced 2

// ============================

// Node.js syntax to demonstrate the

// util.isDeepStrictEqual() method

// npm install util

// Importing util library

const util = require('util');

// Creating object1

const object1 = {

alfa: "beta",

romeo: [10, 20]

};

// Creating object2

const object2 = {

alfa: "beta",

romeo: [10, 20]

};

// Returns false

console.log("1.>", object1 == object2)

// Returns true

console.log("2.>", util.isDeepStrictEqual(object1, object2))