Source: Functions are first class objects in JavaScript Loose Typingįor many front-end developers, JavaScript was their first taste of a scripting and/or interpretive language. This means that JavaScript functions are just a special type of object that can do all the things that regular objects can do. Source: JavaScript anonymous functions Functions as First-class Objectsįunctions in JavaScript are first class objects. They’re called anonymous functions because they aren’t given a name in the same way as normal functions. Source: Introduction to Object-Oriented JavaScript Anonymous FunctionsĪnonymous functions are functions that are dynamically declared at runtime. JavaScript has strong object-oriented programming capabilities, even though some debates have taken place due to the differences in object-oriented JavaScript compared to other languages. See more at Mozilla Developer Network - DOM. It provides a structural representation of the document, enabling you to modify its content and visual presentation by using a scripting language such as JavaScript. The Document Object Model (DOM) is an API for HTML and XML documents. See the ECMAScript 2016 Language Specification at Ecma International.Ī good reference to versions, references and news about JavaScript can be found at the Mozilla Developer Network. Following the new annual release cycle, ES7/ES2016 has been adopted in June 2016. As of June 2015 the spec for ES6/ES2015 has been approved. Older browsers support at least ECMAScript 3. As of 2012, all modern browsers fully support ECMAScript 5.1. In case of JavaScript, the interpreter is the browser. Although both have the lexical structure of programming, they are not the same language.ĭifferent from C, C# and Java, JavaScript is an interpreted language. When it first shipped in beta releases, it was officially called LiveScript and finally, when it was released by Sun Microsystems, was baptized with the name by which it is known today.īecause of the similar names, people confuse JavaScript with Java. Created by Netscape in 1995 as an extension of HTML for Netscape Navigator 2.0, JavaScript had as its main function the manipulation of HTML documents and form validation.īefore winning this name so famous nowadays, JavaScript was called Mocha.
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