array-head
v0.1.0
Published
Returns the first element of the array or `undefined` if given an empty or non-array value.
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Readme
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.
npm stats
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 orundefined
given an empty or non-array value.
Alternatives
x => x[0]
function (x) { return x[0] }
Contributing
SEE: contributing.md