array-head

array-head

Returns the first element of the array or undefined given an empty or non-array value.

npm install array-head --save

You can also use Duo, Bower or download the files manually.

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API Example

Pointful

var first = require('array-head')
first([25, 20, 15, 10])
//=> 25

Pointfree Style

var first = require('array-head')
var lists = [
  ['a', 'b', 'c'],
  [1, 2, 3]
]

lists.map(first)
//=> ['a', 1]

API

first(val)

arguments

• val (Array) Array.

returns

• (*) First element of the array or undefined given an empty or non-array value.

Alternatives

• x => x[0]
• function (x) { return x[0] }

Contributing

SEE: contributing.md

Licenses

Changelog

0.1.0 - 2015-08-04

Added

• Initial Version.