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JavaScript (not to be confused with Java) is a high-level, dynamic, multi-paradigm, weakly-typed language used for both client-side and server-side scripting. Use this tag for questions regarding common implementations of ECMAScript, JavaScript, JScript, etc. JS does not typically refer to its ECMA-cousin, ActionScript.

32 votes

What constitutes "improper use" of the javascript Eval feature?

Back when I was implementing the JScript engine I advocated having EVAL IS EVIL shirts printed up but sadly we never got around to it. My biggest problem with eval is not the obvious malicious code in …
Eric Lippert's user avatar
  • 46.4k
406 votes

Why is JavaScript not compiled to bytecode before sending over the network?

Why is JavaScript not compiled to bytecode before sending over the network? … JavaScript already minifies reasonably well and is highly compressible. …
Eric Lippert's user avatar
  • 46.4k
12 votes
Accepted

Minimal programmer's definition of a monad

Mason's answer is correct, and yes you should read my series. To emphasize his point more thoroughly: Can a monad be thought of as a function that accepts a value and wraps it such that it meets s …
Eric Lippert's user avatar
  • 46.4k
34 votes
Accepted

Unable to solve mystery of functions in Javascript

It is complicated, it is easy to misunderstand, and a great many beginner Javascript books get it wrong, so do not trust everything you read. … Objects in JavaScript are just lookup tables that associate strings with other objects. That's it! There's no magic here. …
Eric Lippert's user avatar
  • 46.4k