Support ECMAScript 5, 6, 7 Shims and Shams

ECMAScript 5 (есть в es5-shim)

Object
- Object.keys

Array
- Array.isArray
- [].indexOf
- [].lastIndexOf
- [].every
- [].some
- [].forEach
- [].map
- [].filter
- [].reduce
- [].reduceRight

String
- "".trim
- "".split - crossbrowser (нет в es5-shim)

Function
- (function(){}).bind

Date
- Date.now
- (new Date()).toISOString
- (new Date()).toJSON
- (new Date()).parse -> return NaN for invalid dates

JSON (нет в es5-shim)
- JSON.parse
- JSON.stringify

ECMAScript 6 (есть в es6-shim)

Object
- Object.assign
- Object.is
Только, если есть поддержка ES5
- Object.getPrototypeOf
- Object.getOwnPropertyDescriptor
- Object.getOwnPropertyNames
- Object.seal
- Object.freeze
- Object.preventExtensions
- Object.isSealed
- Object.isExtensible
- Object.keys

String
- String.raw
- String.fromCodePoint
- "".codePointAt
- "".repeat
- "".startsWith
- "".endsWith
- "".includes

Number
- Number.isFinite
- Number.isInteger
- Number.isSafeInteger
- Number.isNaN
- Number.EPSILON
- Number.MIN_SAFE_INTEGER
- Number.MAX_SAFE_INTEGER
- Number('0o1')
- Number('0b1')

Array
- Array.from
- Array.of
- [].copyWithin
- [].find
- [].fineIndex
- [].fill
- [].keys
- [].values
- [].entries

RegExp
- (//).flags

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

Map
Set
Reflect
Promise

ECMAScript 7 (есть в es7-shim)

Object
- Object.values
- Object.entries
- Object.getOwnPropertyDescriptors

Array
- [].includes

String
- "".padStart
- "".padEnd
- "".trimLeft
- "".trimRight
- "".at

Map
- (new Map()).toJSON

Set
- (new Set()).toJSON

Последовательность включения новых функций в проект:
- es5-shim.min.js
- es5-sham.min.js
- json3.min.js
- es6-shim.min.js
- es6-sham.min.js
- es7-shim.min.js
...other-libs.js...