June 2016
Beginner
314 pages
6h 19m
English
Content preview from Learning JavaScript Data Structures and Algorithms - Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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ECMAScript 7 functionalities
Until the date that this book is being written, only one functionality is confirmed to be shipped with ES7 (or ECMAScript 2016), which is called Array.prototype.includes.
There are other functionalities that are almost ready and may be included in ES7 but still not confirmed, which are:
- The exponentiation operator
- SIMD.JS - SIMD APIs + polyfill
- Async functions
Object.values/Object.entries- String padding
- Trailing commas in function parameter lists and calls
The exponentiation operator may come in handy when working with math, and it simplifies the Math.pow(2, 3) code to 2 ** 3, where ** is designed to be the new exponentiation operator.
You will learn more about the Array.prototype.includes functionality in the next Chapter ...
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