@extra-map/subset.min

Picks an arbitrary subset. :package: :smiley_cat: :running: :vhs: :moon: :scroll: :newspaper: :blue_book:

Usage no npm install needed!

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

README

Picks an arbitrary subset. :package: :smiley_cat: :running: :vhs: :moon: :scroll: :newspaper: :blue_book:

Similar: subset, subsets, isSubset.

This is part of package extra-map.

This is browserified, minified version of @extra-map/subset.
It is exported as global variable map_subset.
CDN: unpkg, jsDelivr.


map.subset(x, [n], [r]);
// x: a map
// n: number of entries (-1 => any)
// r: random seed 0->1

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

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

map.subset(x, 3, 0.3);
// Map(3) { "a" => 1, "b" => 2, "d" => 4 }

map.subset(x, 2, 0.3);
// Map(2) { "b" => 2, "d" => 4 }


References