intersperse-array

Interjects a value between each array item.

Installation

Requires Node.js 6.0.0 or above.

npm i intersperse-array

API

The module exports a single function.

Parameters

1. Bindable: arr (array)
2. Optional: separator (function or any): A value to interleave between each item in arr, or a callback that generates such a value. If separator is a function, it will be passed four arguments: the index of the first item, the first item itself, the index of the second item, and the second item itself. The callback’s return value will be inserted between the first and second items.

Return Value

An array of the values from arr, interleaved with values as determined by separator.

Example

const intersperse = require('intersperse-array')

intersperse(['work', 'work'], 'break') // ['work', 'break', 'work']
intersperse([1, 3, 5], (index1, value1, index2, value2) => value1 + value2) // [1, 4, 3, 8, 5]

// Supports the bind operator
[1, 2, 3]::intersperse((i1, val1) => val1 + 0.5) // [1, 1.5, 2, 2.5, 3]

Related

• intersperse-iterable