shift

Removes first value.

Alternatives: default, update.
Similar: push, pop, shift, unshift.

iterable.shift(x);
// x: an iterable
// --> [value, iterable]

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

var x = [1, 2, 3];
iterable.shift(x);
// [1, [2, 3]]

var x = [1, 2, 3, 4];
iterable.shift(x);
// [1, [2, 3, 4]]

references

• iterable.prototype.shift(): MDN web docs
• immutable-iterable-prototype: @azu