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Update as recommended by @skcat31

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This commit is contained in:
Rohit Tanwar
2018-01-06 14:16:21 +05:30
committed by GitHub
parent 872788d867
commit 8159db579d
1 changed files with 5 additions and 7 deletions
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snippets/indexesOf.md
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@ -5,15 +5,13 @@ Returns an array of indexes at which the `val` occurs in `arr`. If it occurs onl
``` js ``` js
const indexesOf = (arr, val) => { const indexesOf = (arr, val) => {
let indexes = [], i; let indexes = [], i;
for(i = 0; i < arr.length; i++) arr.forEach((el,i) => {if(el === val) indexes.push(i)})
if (arr[i] === val) return indexes.length === 0 ? [-1] : indexes
indexes.push(i);
return indexes.length === 0 ? -1 : indexes.length === 1 indexes.pop() : indexes
} }
``` ```
``` js ``` js
indexesOf([1,2,3],1); // 0 indexesOf([1,2,3],1); // [0]
indexesOf([1,2,3,1,2,3],1); // [0,3] indexesOf([1,2,3,1,2,3],1); // [0,3]
indexesOf([1,2,3],4); // -1 indexesOf([1,2,3],4); // [-1]
indexesOf([[1,2,3]],[1,2,3]); // -1 (Array.prototype.indexOf()) has the same behaviour indexesOf([[1,2,3]],[1,2,3]); // [-1] (Array.prototype.indexOf()) has the same behaviour
``` ```