Package Exports

enable

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (enable) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

enable

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