Run results for: Lodash.isEqual vs JSON.stringify Equality Comparison for Object

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:81.0) Gecko/20100101 Firefox/81.0

Browser: Firefox 81

Operating system: Linux

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
_.isEqual full	251028.2 Ops/sec
JSON.stringify	416149.6 Ops/sec
_.isEqual parted 1	1017562.9 Ops/sec
_.isEqual parted 2	720732.1 Ops/sec
_.isEqual parted 3	406295.1 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

window.foo1 = {a: 1, b: {a: 1, b:2, c: [1, 2, 3, [1, 3], {a: 1}]}};
window.foo2 = {a: 1, b: {a: 1, b:2, c: [1, 2, 3, [1, 3], {a: 1}]}, x: ''};
window.foo3 = {a: 0, b: {a: 1, b:2, c: [1, 2, 3, [1, 3], {a: 1}]}};
window.foo4 = {a: 1, b: {a: 1, b:2, c: [2, 3, [1, 3], {a: 1}]}};
window.bar = {a: 1, b: {a: 1, b:2, c: [1, 2, 3, [1, 3], {a: 1}]}};

Tests:

_.isEqual full
_.isEqual(window.foo1, window.bar)
JSON.stringify
JSON.stringify(window.foo1) === JSON.stringify(window.bar);
_.isEqual parted 1
_.isEqual(window.foo2, window.bar)
_.isEqual parted 2
_.isEqual(window.foo3, window.bar)
_.isEqual parted 3
_.isEqual(window.foo4, window.bar)

Run results for: Lodash.isEqual vs JSON.stringify Equality Comparison for Object

Test on isEqual performance

_.isEqual full

JSON.stringify

_.isEqual parted 1

_.isEqual parted 2

_.isEqual parted 3