JavaScript/archive/code/node_modules/fast-deep-equal/react.js at main · iu5git/JavaScript · GitHub

History

executable file

53 lines (37 loc) · 1.42 KB

Raw

'use strict';

// do not edit .js files directly - edit src/index.jst

module.exports = function equal(a, b) {

if (a === b) return true;

if (a && b && typeof a == 'object' && typeof b == 'object') {

if (a.constructor !== b.constructor) return false;

var length, i, keys;

if (Array.isArray(a)) {

length = a.length;

if (length != b.length) return false;

for (i = length; i-- !== 0;)

if (!equal(a[i], b[i])) return false;

return true;

}

if (a.constructor === RegExp) return a.source === b.source && a.flags === b.flags;

if (a.valueOf !== Object.prototype.valueOf) return a.valueOf() === b.valueOf();

if (a.toString !== Object.prototype.toString) return a.toString() === b.toString();

keys = Object.keys(a);

length = keys.length;

if (length !== Object.keys(b).length) return false;

for (i = length; i-- !== 0;)

if (!Object.prototype.hasOwnProperty.call(b, keys[i])) return false;

for (i = length; i-- !== 0;) {

var key = keys[i];

if (key === '_owner' && a.$$typeof) {

// React-specific: avoid traversing React elements' _owner.

// _owner contains circular references

// and is not needed when comparing the actual elements (and not their owners)

continue;

}

if (!equal(a[key], b[key])) return false;

}

return true;

}

// true if both NaN, false otherwise

return a!==a && b!==b;

};

JavaScript/archive/code/node_modules/fast-deep-equal/react.js at main · iu5git/JavaScript · GitHub

Expand file tree

Breadcrumbs

react.js

Latest commit

History

Breadcrumbs

react.js

File metadata and controls