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map-like

v2.0.0

Published

ECMAScript Map like object.

Downloads

43,011

Readme

map-like Build Status

ECMAScript Map like class.

It has same API with Map - JavaScript | MDN.

It is tiny library - 1.5kB(gzip).

✈ bundle-size map-like
[email protected]

env  bundle   minify   gzip
--   5.73 kB  3.08 kB  1.5 kB

Limitation :warning:

  • Not support Symbol.Iterator - it means MapLike is not iterable.
  • Not support toString()

Install

Install with npm:

npm install map-like

Usage

const { MapLike } = require("map-like");
const map = new MapLike(["key", "value"]);
const value = map.get("key");
map.set("newKey", "newValue");

API

MapLike

ES6 Map like object. See Map - JavaScript | MDN

size

return map size

Returns: Number

entries(): Array

entries [[key, value], [key, value]] value

Returns: Array

keys(): Array

get keys

Returns: Array

values(): Array

get values

Returns: Array

get(key: Any): Any

Parameters

  • key: Any - The key of the element to return from the Map object.

Returns: Any

has(key: Any): boolean

has value of key

Parameters

  • key: Any - The key of the element to return from the Map object.

Returns: boolean

set(key: Any, value: Any): MapLike

set value for key

Parameters

  • key: Any - The key of the element to return from the Map object.
  • value: Any

Returns: MapLike

delete(key: Any): boolean

delete value for key

Parameters

  • key: Any - The key of the element to return from the Map object.

Returns: boolean

clear(): MapLike

clear defined key,value

Returns: MapLike

forEach(handler: function (value, key, map), thisArg: [Any])

forEach map

Parameters

  • handler: function (value, key, map)
  • thisArg: [Any]

Changelog

See Releases page.

Running tests

Install devDependencies and Run npm test:

npm i -d && npm test

Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

  1. Fork it!
  2. Create your feature branch: git checkout -b my-new-feature
  3. Commit your changes: git commit -am 'Add some feature'
  4. Push to the branch: git push origin my-new-feature
  5. Submit a pull request :D

Author

License

MIT © azu

Thanks

Test MapLike with test-case of https://github.com/Financial-Times/polyfill-service/blob/master/polyfills/Map/tests.js.