10 examples of 'lodash compare arrays' in JavaScript

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87function CompareArrays(a, b) {
88
89 if (Array.isArray(a) === false || Array.isArray(b) === false) {
90 return false;
91 }
92
93 if (a.length !== b.length) {
94 return false;
95 }
96
97 for (let n = 0; n < a.length; n++) {
98 if (a[n] !== b[n]) {
99 return false;
100 }
101 }
102
103 return true;
104}
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7function compare_arrays(a1, a2) {
8 for(var k in a1) {
9 if(a1[k] !== a2[k]) {
10 return false;
11 }
12 }
13 for(var k in a2) {
14 if(a2[k] !== a1[k]) {
15 return false;
16 }
17 }
18 return true;
19}
88function compare(a, b) {
89 if (Array.isArray(a)) {
90 return compareArray(a, b);
91 } else if (
92 typeof a === "number" ||
93 typeof a === "string" ||
94 a === false ||
95 a === true ||
96 a === null
97 ) {
98 return a === b;
99 } else {
100 return compareObjects(a, b);
101 }
102}
52export function compareArray(array1, array2) {
53 if (array2.length !== array1.length) {
54 return false;
55 }
56 for (var i = 0; i < array1.length; i++) {
57 if (array2[i].compareArray) {
58 if (!array2[i].compareArray(array1[i])) {
59 return false;
60 }
61 }
62 if (array2[i] !== array1[i]) {
63 return false;
64 }
65 }
66 return true;
67}
77function compareSortedArrays(array1, array2) {
78 if (array1.length !== array2.length) {
79 return false;
80 }
81 for (let i = 0, len = array1.length; i < len; i++) {
82 if (array1[i] !== array2[i]) {
83 return false;
84 }
85 }
86 return true;
87}
96function compareArray(a1, a2){
97 var ret = true;
98 var i = 0;
99 var len = a1.length;
100 if(len != a2.length){
101 ret = false;
102 } else {
103 for(; i < len; i++){
104 if(a1[i] != a2[i]){
105 ret = false;
106 break;
107 }
108 }
109 }
110 return ret;
111}
29function sortKeys (a, b) {
30 var result = compare(a, b, EntitiesData.entitiesFirst) - compare(a, b, EntitiesData.oprionsLast);
31 return result;
32}/*}}}*/
1export default function shallowEquals(a, b, compare) {
2 let aIsNull = a === null;
3 let bIsNull = b === null;
4
5 if (aIsNull !== bIsNull) return false;
6
7 let aIsArray = Array.isArray(a);
8 let bIsArray = Array.isArray(b);
9
10 if (aIsArray !== bIsArray) return false;
11
12 let aTypeof = typeof a;
13 let bTypeof = typeof b;
14
15 if (aTypeof !== bTypeof) return false;
16 if (flat(aTypeof)) return compare
17 ? compare(a, b)
18 : a === b;
19
20 return aIsArray
21 ? shallowArray(a, b, compare)
22 : shallowObject(a, b, compare);
23}
13export function mergeArrays(a, b) {
14 const merged = a.slice()
15
16 for (const element of b) {
17 if (a.indexOf(element) < 0) {
18 merged.push(element)
19 }
20 }
21
22 return merged.sort((a, b) => a - b)
23
24 // ES6 version, requires Set polyfill.
25 // let merged = new Set(a)
26 // for (const element of b)
27 // {
28 // merged.add(i)
29 // }
30 // return Array.from(merged).sort((a, b) => a - b)
31}
17function compare (a, b, order) {
18 if ( !Array.isArray(order) ) { return 0; }
19 var
20 max = order.length,
21 makeIndex = (x) => ( x < 0 ) ? max : x,
22 ax = makeIndex(order.indexOf(a)),
23 bx = makeIndex(order.indexOf(b)),
24 result = ax - bx
25 ;
26 return result;
27}/*}}}*/

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