Could someone please give me a brief introduction to lexical scoping?...
I know that 'this' in JavaScript has a different meaning than in in TypeScript, as per this article 'this' in TypeScript. I have the following code in JavaScript used to create a thicker stroke on the selected node, and give all oth...
I understand that there is global scope, and additionally nestable functional scope.  But are there any other types of scopes or closures in Javascript?  While we're on the topic, what's the difference between a scope, and a closure?...
Normally I'd assign an alternative "self" reference when referring to "this" within setInterval. Is it possible to accomplish something similar within the context of a prototype method? The following code errors.  function Foo() {...
When I open jQuery's source code I find this line.  var  // Will speed up references to window, and allows munging its name. window = this   Why and how this line will speed up?...
This question already has answers here:...
You are allowed to use free-standing blocks like this...   var something = 1; {   var something = 2;   print("Inside: " + something); } print("Outside: " + something);   This is from: http://eloquentjavascript.net/chapter3.html#p3...
Consider the following piece of code:  function processParagraph(paragraph) {     if (paragraph.charAt(0) === '%') {         for (var level = 0; paragraph.charAt(level) === '%'; level++) {}          return {             type: 'h&#...
I have a pop up modal, when the user clicks on submit in the modal, it goes to my database and saves some data there. The modal is closed after that.  However, since it is a modal, the user is able to close it via ESC button. So I want to ensure even...
Is it possible to change the lexical scoping of javascript so that functions use the variable scope that is in effect when they are evoked not when they were defined? In a nutshell can I change the scope chain associated with a function?  An example...

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