Usage no npm install needed!

<script type="module">
  import arrayHead from 'https://cdn.skypack.dev/array-head';
</script>

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.

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

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

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

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