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enable

3.4.0 • Public • Published

enable

NPM version build status Test coverage Gittip David deps node version npm download

Detect es6 and es7 features enable or not.

Install

$ npm install enable --save

Usage

var enable = require('enable');
 
if (enable.<feature>) {
  console.log(<feature> is supported);
}
 
/* Example:
if (enable.generator) {
  console.log('supports generator: `function* a() {}`');
}
*/

List of features:

Object related:

  • Object.is
  • Object.assign
  • Object.getOwnPropertySymbols
  • Object.setPrototypeOf
  • Object.observe
  • Object.Object.getOwnPropertyDescriptors

String related:

  • String.raw
  • String.fromCodePoint
  • String.prototype.codePointAt
  • String.prototype.normalize
  • String.prototype.repeat
  • String.prototype.startsWith
  • String.prototype.endsWith
  • String.prototype.contains
  • String.prototype.anchor
  • String.prototype.big
  • String.prototype.bold
  • String.prototype.fixed
  • String.prototype.fontcolor
  • String.prototype.fontsize
  • String.prototype.italics
  • String.prototype.link
  • String.prototype.small
  • String.prototype.strike
  • String.prototype.sub
  • String.prototype.sup

Number related:

  • Number.isFinite
  • Number.isInteger
  • Number.isSafeInteger
  • Number.isNaN
  • Number.EPSILON
  • Number.MIN_SAFE_INTEGER

Math related:

  • Math.clz32
  • Math.imul
  • Math.sign
  • Math.log10
  • Math.log2
  • Math.log1p
  • Math.expm1
  • Math.cosh
  • Math.sinh
  • Math.tanh
  • Math.acosh
  • Math.asinh
  • Math.atanh
  • Math.hypot
  • Math.trunc
  • Math.fround
  • Math.cbrt

RefExp methods:

  • RegExp.prototype.match
  • RegExp.prototype.replace
  • RegExp.prototype.split
  • RegExp.prototype.search

Map related:

  • Map
  • Map.prototype.size
  • Map.prototype.get
  • Map.prototype.has
  • Map.prototype.set
  • Map.prototype.delete
  • Map.prototype.keys
  • Map.prototype.values
  • Map.prototype.clear
  • Map.prototype.forEach
  • Map.prototype.entries

WeakMap related:

  • WeakMap
  • WeakMap.length
  • WeakMap.prototype.constructor
  • WeakMap.prototype.get
  • WeakMap.prototype.set
  • WeakMap.prototype.has
  • WeakMap.prototype.delete
  • WeakMap.prototype.clear

Set related:

  • Set
  • Set.prototype.constructor
  • Set.prototype.size
  • Set.prototype.add
  • Set.prototype.has
  • Set.prototype.delete
  • Set.prototype.clear
  • Set.prototype.forEach
  • Set.prototype.entries
  • Set.prototype.keys
  • Set.prototype.values

WeakSet related:

  • WeakSet
  • WeakSet.prototype.constructor
  • WeakSet.prototype.add
  • WeakSet.prototype.has
  • WeakSet.prototype.delete
  • WeakSet.prototype.clear

Array related:

  • Array.from
  • Array.of
  • Array.prototype.copyWithin
  • Array.prototype.find
  • Array.prototype.findIndex
  • Array.prototype.fill
  • Array.prototype.keys
  • Array.prototype.values
  • Array.prototype.entries

Others:

  • generator.
  • arrowFunction
  • asyncFunction
  • asyncArrowFunction
  • let.
  • const.
  • Promise.
  • class.

Test

$ npm install
$ npm test

Coverage

$ npm test-cov

Install

npm i enable

DownloadsWeekly Downloads

47,999

Version

3.4.0

License

MIT

Unpacked Size

13.9 kB

Total Files

5

Last publish

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