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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 | 8x 8x 8x 8x 8x 92x 92x 31x 61x 42x 42x 42x 42x 42x 42x 10x 10x 1x 9x 15x 4x 5x 32x 2x 30x 30x 30x 1x 29x 3x 26x 26x 26x 1x 25x 3x 22x 22x 22x 3x 19x 28x 4x 15x 24x 24x 4x 11x 19x | import { purry } from './purry';
// from https://github.com/epoberezkin/fast-deep-equal/blob/master/index.js
const isArray = Array.isArray;
const keyList = Object.keys;
const hasProp = Object.prototype.hasOwnProperty;
/**
* Returns true if its arguments are equivalent, false otherwise.
* @warning Doesn't handle cyclical data structures.
* @param a the first object to compare
* @param b the second object to compare
* @signature
* P.equals(a, b)
* @example
* P.equals(1, 1) //=> true
* P.equals(1, '1') //=> false
* P.equals([1, 2, 3], [1, 2, 3]) //=> true
* @data_first
* @category Object
*/
export function equals(a: any, b: any): boolean;
/**
* Returns true if its arguments are equivalent, false otherwise.
* @warning Doesn't handle cyclical data structures.
* @param a the first object to compare
* @param b the second object to compare
* @signature
* P.equals(b)(a)
* @example
* P.equals(1)(1) //=> true
* P.equals('1')(1) //=> false
* P.equals([1, 2, 3])([1, 2, 3]) //=> true
* @data_last
* @category Object
*/
export function equals(a: any): (b: any) => boolean;
export function equals() {
return purry(_equals, arguments);
}
function _equals(a: any, b: any) {
if (a === b) {
return true;
}
if (a && b && typeof a === 'object' && typeof b === 'object') {
const arrA = isArray(a);
const arrB = isArray(b);
let i;
let length;
let key;
if (arrA && arrB) {
length = a.length;
if (length !== b.length) {
return false;
}
for (i = length; i-- !== 0; ) {
if (!equals(a[i], b[i])) {
return false;
}
}
return true;
}
if (arrA !== arrB) {
return false;
}
const dateA = a instanceof Date;
const dateB = b instanceof Date;
if (dateA !== dateB) {
return false;
}
if (dateA && dateB) {
return a.getTime() === b.getTime();
}
const regexpA = a instanceof RegExp;
const regexpB = b instanceof RegExp;
if (regexpA !== regexpB) {
return false;
}
if (regexpA && regexpB) {
return a.toString() === b.toString();
}
const keys = keyList(a);
length = keys.length;
if (length !== keyList(b).length) {
return false;
}
for (i = length; i-- !== 0; ) {
if (!hasProp.call(b, keys[i])) {
return false;
}
}
for (i = length; i-- !== 0; ) {
key = keys[i];
if (!equals(a[key], b[key])) {
return false;
}
}
return true;
}
return a !== a && b !== b;
}
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