# fromentries [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url] [travis-image]: https://img.shields.io/travis/feross/fromentries/master.svg [travis-url]: https://travis-ci.org/feross/fromentries [npm-image]: https://img.shields.io/npm/v/fromentries.svg [npm-url]: https://npmjs.org/package/fromentries [downloads-image]: https://img.shields.io/npm/dm/fromentries.svg [downloads-url]: https://npmjs.org/package/fromentries [standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg [standard-url]: https://standardjs.com ### Object.fromEntries() ponyfill (in 6 lines) ## Install ``` npm install fromentries ``` ## Why this package? Existing polyfill packages (like [`object.fromentries`](https://github.com/es-shims/Object.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 ```js 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](https://ponyfoo.com/articles/polyfills-or-ponyfills). ## See also - [TC39 proposal for Object.fromEntries](https://github.com/tc39/proposal-object-from-entries) ## License MIT. Copyright (c) [Feross Aboukhadijeh](http://feross.org).