head

Get first value.

Similar: head, tail, init, last.

function head(x, vd?)
// x:  an array
// vd: default value

const array = require('extra-array');

array.head([1, 2, 3]);
// → 1

array.head([], -1);
// → -1

References

• Data.List.head: Haskell
• _.head: lodash
• Array.first: sugarjs