173 B
173 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