The Object.observe() JavaScript API allows any piece of code to receive change notifications for all property changes of any JavaScript object.  Doesn't this severely affect the code generation and performance optimizations that can be performed...
Question not for solution, Question to understand the system better  Experts! I know whenever you feed javascript code into javascript engine, It will execute by javascript engine immediately. Since, I haven't seen Engine's source code, I hav...
node.js is an open source server-side JavaScript platform based on Google's V8 JavaScript engine. It has been rapidly gaining popularity and importance for couple of years now.  Now node.js is just a platform. In essence which JavaScript engine t...
I'm interested to find out how the JavaScript interpreter (engine if you like) works. I'm aware that JavaScript isn't compiled.I have looked at the ECMA specification, but it doesn't explain how the actual engine works.   The main rea...
This question already has answers here:...
Each Browser has own Engine for JavaScript, so if I want to learn how JavaScript works, I must learn about all the Engines?  Do the Engines translate the Code in the same Way?...
This post is kind of a simplified version of this post:  What is the exact order of execution of Javascript's for loop?  I'm super interested in why I keep getting confused while working with for loops. I'd like to learn how a for loop is...
function func1(str) {   eval(str);   newVar = 100;   function func2() {      console.log(bar);      console.log(newVar);   }   func2(); }  func1("bar = 42;");   I've read that the eval() keyword should be avoiding because it cheats the le...
I have tried to convert a JS object into JSON.  JSON.stringify({a:1, toJSON: function(){}})   Native JSON stringify is not working as expected. JSON stringify executes toJSON function in JS object internally. I have overwritten native code as follows...
I am developing a translator that converts JavaScript source into a target language. I am trying to implement JavaScript's Math object in the target language.  If there is a JavaScript implementation of the "Math" object, I can use the tr...

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