https://github.com/xotic750/array-reduce-right-x

Reduce an array (from right to left) to a single value.
https://github.com/xotic750/array-reduce-right-x

array browser javascript nodejs reduceright

Last synced: 2 months ago
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Reduce an array (from right to left) to a single value.

• Host: GitHub
• URL: https://github.com/xotic750/array-reduce-right-x
• Owner: Xotic750
• License: other
• Created: 2017-08-09T20:08:28.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2023-01-04T22:40:25.000Z (over 3 years ago)
• Last Synced: 2025-02-19T08:48:07.124Z (over 1 year ago)
• Topics: array, browser, javascript, nodejs, reduceright
• Language: JavaScript
• Size: 2.35 MB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 20
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          












































## array-reduce-right-x

Reduce an array (from right to left) to a single value.



### `module.exports` ⇒ \* ⏏

This method applies a function against an accumulator and each value of the

array (from right-to-left) to reduce it to a single value..

**Kind**: Exported member  

**Returns**: \* - The value that results from the reduction.  

**Throws**:

- TypeError If array is null or undefined.

- TypeError If callBack is not a function.

- TypeError If called on an empty array without an initial value.

| Param          | Type                  | Description                                                                                                                                                                                                                     |

| -------------- | --------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

| array          | array    | The array to iterate over.                                                                                                                                                                                                      |

| callBack       | function | Function to execute for each element.                                                                                                                                                                                           |

| [initialValue] | \*       | Value to use as the first argument to the first call of the callback. If no initial value is supplied, the first element in the array will be used. Calling reduceRight on an empty array without an initial value is an error. |

**Example**

```js

import reduceRight from 'array-reduce-right-x';

console.log(

  reduceRight(

    [0, 1, 2, 3],

    function(a, b) {

      return a + b;

    },

    0,

  ),

); // sum is 6

```