Travis build: 1097

This commit is contained in:
30secondsofcode
2018-01-08 23:40:06 +00:00
parent a4a0064f81
commit c7ad2ee4ba
3 changed files with 40 additions and 3 deletions

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@ -100,6 +100,7 @@ average(1, 2, 3);
* [`filterNonUnique`](#filternonunique)
* [`flatten`](#flatten)
* [`flattenDepth`](#flattendepth)
* [`forEachRight`](#foreachright)
* [`groupBy`](#groupby)
* [`head`](#head)
* [`indexOfAll`](#indexofall)
@ -813,6 +814,32 @@ flattenDepth([1, [2], 3, 4]); // [1,2,3,4]
<br>[⬆ Back to top](#table-of-contents)
### forEachRight
Executes a provided function once for each array element, starting from the array's last element.
Use `Array.slice(0)` to clone the given array, `Array.reverse()` to reverse it and `Array.forEach()` to iterate over the reversed array.
```js
const forEachRight = (arr, callback) =>
arr
.slice(0)
.reverse()
.forEach(callback);
```
<details>
<summary>Examples</summary>
```js
forEachRight([1, 2, 3, 4], val => console.log(val)); // '4', '3', '2', '1'
```
</details>
<br>[⬆ Back to top](#table-of-contents)
### groupBy
Groups the elements of an array based on the given function.

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@ -5,9 +5,13 @@ Executes a provided function once for each array element, starting from the arra
Use `Array.slice(0)` to clone the given array, `Array.reverse()` to reverse it and `Array.forEach()` to iterate over the reversed array.
```js
const forEachRight = (arr,callback) => arr.slice(0).reverse().forEach(callback);
const forEachRight = (arr, callback) =>
arr
.slice(0)
.reverse()
.forEach(callback);
```
```js
forEachRight([1,2,3,4], val => console.log(val)); // '4', '3', '2', '1'
forEachRight([1, 2, 3, 4], val => console.log(val)); // '4', '3', '2', '1'
```