Recently I've read this performance guide Let's make the web faster and was puzzled by "Avoiding pitfalls with closures" recommendations (as if these advices were given for CommonLisp users where variable scoping is dynamic):   var a...
I am trying to make a small interpreter for print statement. Here is a demo of what I have done till now:  DEMO  What I want to reach now is to print multiple string connected with +like:   print "My book" + "is" + "xx" print...
Are there any JavaScript (ECMAScript) implementations written in pure Python? It is okay even if its implementation is very slow....
A lot of questions have been asked and answered about running server-side javascript on Google App Engine, but all of the answers deal with Java instances in order to make use of Java-based JS interpreters like Rhino, Rhino for Webapps, etc.  Is ther...
I am working on a html-based calculator, and I want to render an expression, then evaluate it, and all of this must be done in Javascript. I would prefer for the expression to be written in LaTeX, and for it to be possible to edit the rendered expres...
Html can contain little bits of Javascript embedded in it (e.g. defined in onclick event handlers).   If I were writing an Html browser using a dotNet language like C#, what technologies or APIs could I use to run such Javascript fragments, given tha...
Yes, I use F12 in the browser all the time to test out Javascript snippets with the console. I'm tired of that (for the moment anyway).  I've read that in Visual Studio you can use the immediate window to run Javascript interactively.. I'...
I've been building a basic live-evaluation javascript development environment (I call it the WEPL.) over the past few days, and realized it'd be nice to be able to associate error messages to line numbers.  Unfortunately, eval() doesn't p...
JS-Interpreter is a somewhat well-known JavaScript Interpreter. It has security advantages in that it can completely isolate your code from document and allows you to detect attacks such as infinite loops and memory bombs. This allows you to run exte...
I'm looking for the best tool for benchmarking the speed of JavaScript interpreters.   Preferably this shouldn't be a tool written by a conflicted party such as Mozilla or Google, although I understand that these might give the most accurate...

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