What is the difference between javascript jscript and ecmascript

If you continue to think like this it might confuse you. ES5 does not require a build step transpilers to transform it into something that will run in today's browsers. Current browsers versions can now understand the new JavaScript code ES , even if they don't yet support it. Technically ECMAScript is the language that everyone is using and implementing -- it is the specification created many years ago when Netscape and Microsoft sat down and attempted to standardise the scripting between JavaScript Netscape's scripting language and JScript Microsoft's.

Subsequently all these engines are ostensibly implementing ECMAScript, however JavaScript the name now hangs around for both traditional naming reasons, and as a marketing term by Mozilla for their various non-standard extensions which they want to be able to actually "version". So ecmascript was introduced as a standard.

But ecmascript forms only a part of javascript which specifies its core syntax,types,objects etc. Probably that explains the inconsistent implementations of javascript across diff. The main point is that ECMAScript is the bare abstract language, without any domain specific extensions, it's useless in itself.

The specification defines only the language and the core objects of it. While JavaScript and ActionScript and other dialects add the domain specific library to it, so you can use it for something meaningful. You can link them into your program then add your native functions to the global object so your program becomes scriptable.

Although most often they are used in browsers. Javascript was the original name, meant to capitalize on the popularity of java. ECMA is the standards body that oversees the standard that was eventually put in place so the names are roughly equivalent.

For all intents and purposes, the language is JavaScript. This is evident in such things like the relaxing of the need to have a semicolon. After the language was complete, the marketing team of Netscape requested Sun to allow them to name it JavaScript as a marketing stunt and hence why most people who have never used JavaScript think it's related to Java. About a year or two after JavaScript's release in the browser, Microsoft's IE took the language and started making its own implementations such as JScript.

At the same time, IE was dominating the market and not long after Netscape had to shut its project. During this 10 years, Microsoft dominated the scenes but at the same time they weren't improving their product and hence Firefox was born led by Eich and a whole heap of other browsers such as Chrome, Opera.

ECMAScript released its 5th Edition in the 4th edition was abandoned with features such as strict mode. Since then, ECMAScript has gained a lot of momentum and is scheduled to release its 6th Edition in a few months from now with the biggest changes its had thus far. It may be used with Node. ECMAScript exists in several editions.

This chapter describes the most important features of ES6. Some people call it JavaScript 6. This chapter will introduce some of the new features in ES6. JavaScript let. JavaScript const. JavaScript Arrow Functions. JavaScript Classes. Technically ECMAScript is the language that everyone is using and implementing -- it is the specification created many years ago when Netscape and And it is one reason, why JS is the most popular programming language on the frontend web development.

They are constructed in a way that provides a high-level understanding of the connection and relationship between JavaScript and ECMAScript. While JavaScript is the most popular implementation of that standard. ECMA Standard This version comes from the era when Ecma was still playing ES is currently a … Their confusion comes from the fact that there is a lot of instability in the language. Among these, a feature that developers have been requesting for a long time is the exec text! Both JavaScript vs JScript are designed to make dynamic web pages and interactive content.

TypeScript is an open-source language supported by Microsoft, which builds on top of JavaScript by adding optional static typing. ES6 is the version of ecmascript draft in which a lot of features were introduced classes, arrow functions etc. TypeScript has a feature known as Static typing but JavaScript does not have this feature. Typescript is a modern age Javascript development language. Their concise syntax and handling of the this keyword have made JavaScript arrow functions an ES6.

We notice while comparing the two that TypeScript is an open-source language and an extended version of JavaScript. For more info read this article. In this example, two objects define a method. It is a trademark scripting language specification. JavaScript is high-level, often just-in-time compiled, and multi-paradigm. Derived in a sense, that it implements the standard. The big difference is, that Javascript actually only exists within the Browser, saying, it is by no means a standard in itself.

Every browser can and a lot do implement it's own methods. To 3: Since Javascript is implemented by the browser, this really depends on what browsers you want to develop code for.

Older browser may have to be dealt with trought some seperate handling in your code. To 5: Again, javascript can check what browser or what client software in general requestet the page it is loaded in. Meaning: If bad comes to worse, you can deal with each browser seperately in your code. But most of the time they are pretty compliant at least the later versions.