Or even English alphabets ‘ABCDEFGHIJKLMNOPQRSTUVWXYZ’: Array.apply(, Array(26)). This function returns a new array resulting from applying the given callback function to each entry. Section 15.4.4.19 of the official ECMAScript 5.1 specification defines the official behavior of. But ES6 was released 6 years after ES5, which was 10 years after ES3, so it’s a major milestone. Nowadays, ECMA releases a new standard annually. This is vanilla JavaScript without any special features, supported everywhere, even in IE 9. Next-generation JavaScript will have the similar feature via array comprehension.įirst of all, let’s do a quick refresh on Array’s map and filter functions. The primary JavaScript standard is ECMAScript 5, or ES5, released in 2009. If comprehension is used properly, it eliminates the need for the traditional and error-prone manual iteration. ECMAScript 6: Jump in, the water is warm ECMAScript 6 Playing around in Harmony. ECMAScript 6 Logo Other than syntax, the biggest change that ECMAScript Arrow Functions brings about, is how it relates to context: in the function body, this. ES6, also known as ECMAScript 2015, is the sixth version of the ECMAScript language specification. Many modern programming languages support list comprehension, a concise way to create a list based another list where each entry is the result of some operations. 5 Great Features in EcmaScript 6 (ES6 Harmony) An introduction to ES6. In this course, youll explore those changes to learn about. Ariya.io About Talks Articles ECMAScript 6 and Array ComprehensionĤ min read #craftsmanship #es6 #javascript #web ECMAScript 6, or ES6, has brought about a ton of changes to the JavaScript programming language.
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