fromentries !travistravis-imagetravis-url !npmnpm-imagenpm-url !downloadsdownloads-imagedownloads-url !javascript style guidestandard-imagestandard-url
Object.fromEntries() ponyfill (in 6 lines)
Install
npm install fromentriesWhy this package?
Existing polyfill packages (likeobject.fromentries)
pull in a bunch of dependencies and adds over 8
KB to the browser bundle size. This allows them to work in ES3 environments
like IE6, but it's also overkill; almost no one supports IE6 anymore.I'd rather not ship tons of extra code to website visitors. A polyfill for this feature can be implemented in a few short lines of code using modern language features. That's what
fromentries (this package) does.This means that
fromentries only works in evergreen browsers like:- Chrome
- Firefox
- Edge
- Safari
- Opera
It does not work in browsers like IE11 and older (unless you transpile it first).
Usage
const fromEntries = require('fromentries')
const map = new Map([ [ 'a', 1 ], [ 'b', 2 ], [ 'c', 3 ] ])
const obj = fromEntries(map)
constole.log(obj) // { a: 1, b: 2, c: 3 }
const searchParams = new URLSearchParams('foo=bar&baz=qux')
const obj2 = fromEntries(searchParams)
console.log(obj2) // { foo: 'bar', 'baz': 'qux' }What is a ponyfill?
A ponyfill is almost the same as a polyfill, but not quite. Instead of patching functionality for older browsers, a ponyfill provides that functionality as a standalone module you can use.
Read more at PonyFoo.
