2.1.30 • Published 6 years ago

@extra-map/is-submap v2.1.30

Weekly downloads
-
License
MIT
Repository
github
Last release
6 years ago

Checks if map has a submap. :running: :package: :ledger:

Similar: subobject, subobjects, isSubobject. This is part of package extra-map.

map.isSubmap(x, y, [fc], [fm]);
// x:  a map
// y:  submap?
// fc: compare function (a, b)
// fm: map function (v, k, x)
const map = require('extra-map');

var x = new Map([['a', 1], ['b', 2], ['c', 3], ['d', 4]]);
var y = new Map([['b', 2], ['d', 4]]);
map.isSubmap(x, y);
// true

var y = new Map([['b', -2], ['d', -4]]);
map.isSubmap(x, y);
// false

map.isSubmap(x, y, (a, b) => Math.abs(a) - Math.abs(b));
// true

map.isSubmap(x, y, null, v => Math.abs(v));
// true

references

extraissubmapisSubmap
@infinitebrahmanuniverse/nolb-_extra-m@zalastax/nolb-_extra-m
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