162 B
162 B
head
Returns the head of a list.
Use arr[0] to return the first element of the passed array.
const head = arr => arr[0];
// head([1,2,3]) -> 1
Returns the head of a list.
Use arr[0] to return the first element of the passed array.
const head = arr => arr[0];
// head([1,2,3]) -> 1