@extra-map/shift

Removes first entry. :package: :smiley_cat: :running: :vhs: :moon: :scroll: :newspaper: :blue_book:

Usage no npm install needed!

<script type="module">
  import extraMapShift from 'https://cdn.skypack.dev/@extra-map/shift';
</script>

README

Removes first entry. :package: :smiley_cat: :running: :vhs: :moon: :scroll: :newspaper: :blue_book:

Alternatives: shift, shift$.

This is part of package extra-map.


map.shift(x);
// x: a map

const map = require("extra-map");

var x = new Map([["a", 1], ["b", 2], ["c", 3]]);
map.shift(x);
// Map(2) { "b" => 2, "c" => 3 }

var x = new Map([["a", 1], ["b", 2], ["c", 3], ["d", 4]]);
map.shift(x);
// Map(3) { "b" => 2, "c" => 3, "d" => 4 }


References