ES-Checker (Github)

Variables click to collapse contents

✓ let and const

✓ TDZ error for too-early access of let or const declarations

✓ Redefinition of const declarations not allowed

✓ destructuring assignments/declarations for arrays and objects

✓ ... operator

Data Types click to expand contents

Number click to expand contents

String click to expand contents

✓ Methods added to String.prototype (String.prototype.includes(), String.prototype.repeat() )

✓ Unicode code-point escape form in string literals (e.g. \u{20BB7} )

✓ Unicode code-point escape form in identifier names (e.g. var \u{20BB7} = 42; )

✓ Unicode code-point escape form in regular expressions (e.g. var regexp = /\u{20BB7}/u; )

✓ y flag for sticky regular expressions (e.g. /b/y )

✓ Template String Literals

Function click to expand contents

Array click to expand contents

✓ Methods added to Array.prototype ([].fill(), [].find(), [].findIndex(), [].entries(), [].keys(), [].values() )

✓ Static functions added to Array (Array.from(), Array.of() )

✓ TypedArrays like Uint8Array, ArrayBuffer, Int8Array(), Int32Array(), Float64Array()

✓ Some Array methods (e.g. Int8Array.prototype.slice(), Int8Array.prototype.join(), Int8Array.prototype.forEach() ) added to the TypedArray prototypes

✓ Some Array statics (e.g. Uint32Array.from(), Uint32Array.of() ) added to the TypedArray constructors

ES-Checker (Github)

Your browser supports 92% of ECMAScript 6.

Variables click to collapse contents

Data Types click to expand contents

Number click to expand contents

String click to expand contents

Function click to expand contents

Array click to expand contents

Object click to expand contents

Generator and Promise click to expand contents

Class click to expand contents

Module click to expand contents

ES-Checker by ruanyf @2015

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