BetterMap | /mod.ts | bettermap@v1.3.0

An extension of the Map class with more Array-like features.

Latest

method BetterMap.prototype.first

import { BetterMap } from "https://deno.land/x/bettermap@v1.3.0/mod.ts";

first(): V | undefined

Get the first element(s) from the map.

first(n: number): V[]

Get the first element(s) from the map.

const map = new BetterMap<string, number>("People");
map.set("Doraemon", 10);
map.set("Dora", 28);
console.log(map.first()); // 10

Returns

V | undefined

The first element / undefined.

n: number

V[]