variable « Clojure « Javascript Data Type Q&A

1. What rules govern the copying of variables in Javascript closures?    stackoverflow.com

I'd just like to check my understanding of variable copying in Javascript. From what I gather, variables are passed/assigned by reference unless you explicitly tell them to create a copy with ...

2. How to evaluate a variable to access its runtime value in JavaScript?    stackoverflow.com

Ok, I don't know how to actually ask this question without showing it. (Also explains why I can't figure out how to search for it on Google.) Given the following like of ...

3. Javascript: Calling a method stored in a variable    stackoverflow.com

I am trying to take advantage of Javascript closures by creating a method in one context and storing it in a global variable so that it may be called later from ...

4. Accessing variables trapped by closure    stackoverflow.com

I was wondering if there is any way to access variables trapped by closure in a function from outside the function; e.g. if I have:

A = function(b) {
    ...

5. how to keep the value of a variable in a closure    stackoverflow.com

i need to create multiple javascript functions which have a static id inside, so the function itself knows what data to process. Here is some code:

(function(){
  function log(s){
    ...

6. How to inspect bound closure variables in javascript?    stackoverflow.com

Suppose we do something like this (as part of the construction of a Javascript object):

var foo = 3;
this.method = function () { alert(foo); };

7. Is there any reason to purposely introduce closures to prevent variable hoisting?    stackoverflow.com

Consider this code:

for (var j = 0; j < 10; j++){
    // ...
}

8. Javascript closures - variables vs parameters    stackoverflow.com

I'm trying to learn Javascript closures. I'm having trouble getting my head around the fact that when you create several closures in a loop, all closures save only the last state ...

9. Do variables need to be referenced for them to be included in a closure?    stackoverflow.com

When creating a closure (in Javascript or C#), are all variables in the scope at the time of the closure's creation "enclosed" in it? Or just the variables that are referenced ...

10. Manipulate variable defined in closure    stackoverflow.com

Say I have a Javascript class defined and instantiated like this:

Demo = function() { 
  var abc = "foo";

  return {
    get test() { return abc; ...

11. Returning a variable from closure    stackoverflow.com

How can I get the return value of that.whatever back from the closure? Instead of:

this.setCanvas = function(files){
  var numItems = files.length - 1;
  this.items = {};

  var ...

12. CoffeeScript object properties and closures    stackoverflow.com

I have a class MapHandler. I created an object myMaphandler = new MapHandler and called initialize method. But @userLocationMarker.getPosition() is returning null :( If I'll comment alert and call @userLocationMarker.getPosition() from Chrome JS console ...

13. Is a closure for dereferencing variables useful?    stackoverflow.com

I'm not sure whether or when it is useful (to improve performance) to dereference variables.

var x = a.b.c.d[some_key].f;
while (loop) {
    do_something_with(x);
}

while (loop) {
  ...

14. A Closures and variables question.    sitepoint.com

A Closures and variables question. Hi I have been reading the book "Professional JavaScript for Web Developers second edition" and I found some code that I cannot run either in a HTML page or the firebug console and get the book results. So thinking the book cannot be wrong I am wondering if somebody here can tell me how to call ...