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javascripte4xecma262

Many names of JavaScript / ECMA

I was looking up newer functions of JavaScript and found ECMAScript/ECMA 5.

Because I had never heard of it I looked in to it more and found that it comes in the form of different names such as:

JavaScript, JScript (Microsofts Variation), ECMAScript, ECMA 5, E4X (JavaScript for Xml)and many others

From what I have read it seems that whilst a newer implementation of JavaScript is being drafted it is called ECMA-262 edition {edition_number} or {name}.

I know that each one is a dialect if an implementation of ECMAScript, so it would work in the same if not a slightly different way.

Are JavaScript and ECMAScript different in any way or is it just the name?

Solution

  • ECMAScript is a standard. Javascript, JScript are implementations of that standard.

    And yes they are almost the same. Most of the differences in web programming come from the diversity of DOM implementations (Document Object Model).