1
0
Fork 0
management/front/dkha-web-sz-main/node_modules/fast-deep-equal/index.js

47 lines
1.1 KiB
JavaScript
Raw Permalink Normal View History

2023-12-18 13:12:25 +08:00
'use strict';
2024-01-16 21:26:16 +08:00
// do not edit .js files directly - edit src/index.jst
2023-12-18 13:12:25 +08:00
module.exports = function equal(a, b) {
if (a === b) return true;
if (a && b && typeof a == 'object' && typeof b == 'object') {
2024-01-16 21:26:16 +08:00
if (a.constructor !== b.constructor) return false;
2023-12-18 13:12:25 +08:00
2024-01-16 21:26:16 +08:00
var length, i, keys;
if (Array.isArray(a)) {
2023-12-18 13:12:25 +08:00
length = a.length;
if (length != b.length) return false;
for (i = length; i-- !== 0;)
if (!equal(a[i], b[i])) return false;
return true;
}
2024-01-16 21:26:16 +08:00
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();
2023-12-18 13:12:25 +08:00
2024-01-16 21:26:16 +08:00
keys = Object.keys(a);
2023-12-18 13:12:25 +08:00
length = keys.length;
2024-01-16 21:26:16 +08:00
if (length !== Object.keys(b).length) return false;
2023-12-18 13:12:25 +08:00
for (i = length; i-- !== 0;)
2024-01-16 21:26:16 +08:00
if (!Object.prototype.hasOwnProperty.call(b, keys[i])) return false;
2023-12-18 13:12:25 +08:00
for (i = length; i-- !== 0;) {
2024-01-16 21:26:16 +08:00
var key = keys[i];
2023-12-18 13:12:25 +08:00
if (!equal(a[key], b[key])) return false;
}
return true;
}
2024-01-16 21:26:16 +08:00
// true if both NaN, false otherwise
2023-12-18 13:12:25 +08:00
return a!==a && b!==b;
};