featurex v0.1.0

FeatureX

Library to detect ECMAScript 6+ features in the codebase

Note: this library is in development and API may(and will) be changed!

Usage

const featurex = require('featurex');

featurex('./myModule.js').then(result => {
    console.log(`Next features are used in my code: ${result.features.join(', ')}`);
})

featurex('./myModule.js', 'object.assign').then(result => {
    console.log(!!result.features ? 'Object.assign found!' : 'Object.assign not found!');
})

Features

• Array.from
• Array.of
• Array.prototype.copyWithin
• Array.prototype.entries
• Array.prototype.find
• Array.prototype.findIndex
• Array.prototype.fill
• Array.prototype.keys
• Array.prototype.values
• Arrow functions
• Default function parameters
• For..of loops
• Class
• Constants
• Destructuring (assigment, parameters)
• Generators
• Let
• Map
• Number.EPSILON
• Number.isInteger
• Number.isNaN
• Number.isSafeInteger
• Number.MAX_SAFE_INTEGER
• Number.MIN_SAFE_INTEGER
• Object.assign
• Object.is
• Object.freeze
• Object.getOwnPropertyDescriptor
• Object.getOwnPropertySymbols
• Object.getOwnPropertyNames
• Object.isExtensible
• Object.isFrozen
• Object.isSealed
• Object.keys
• Object.preventExtensions
• Object.seal
• Object.setPrototypeOf
• Object literal extensions
• Octal and binary literals
• Promise
• Proxy
• RegExp "y" and "u" flags
• Rest parameters
• Set
• Spread (...) operator
• String.fromCodePoint
• String.prototype.codePointAt
• String.prototype.endsWith
• String.prototype.includes
• String.prototype.normalize
• String.prototype.repeat
• String.prototype.startsWith
• String.raw
• Super (function)
• Symbol
• Template literals
• Typed arrays
• WeakMap
• WeakSet