Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

by brigand February 03, 2020

HTML

<pre id="out"></pre>

JavaScript

const asArray = (collection, fn) => new collection.constructor(fn(Array.from(collection)));

const map1 = new Map([[1, 'foo'], [2, 'bar']]);

const map2 = asArray(map1, items => items.filter(([key]) => key >=  2))

out.textContent = map2.constructor.name + ' ' + JSON.stringify(Object.fromEntries([...map2]))

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JSFiddle - React, Tailwind, and code Playground

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JavaScript

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Join the 4+ million users, and keep the JSFiddle dream alive.

Ad-free

Use pre-released features

Fiddle collections

Private collections and fiddles

Console