We have two different way for doing function expression in JavaScript:  Named function expression (NFE):   var boo = function boo () {   alert(1); };   Anonymous function expression:  var boo = function () {   alert(1); };   And both of them can be...
This is a named function expression with the name test. Inside, I assign 123 to a variable, also named test. Then test is logged. The function prints its body in the console, but not 123. What is the reason for such behavior?  (function test() {   te...
I can create a recursive function in a variable like so:  /* Count down to 0 recursively.  */ var functionHolder = function (counter) {     output(counter);     if (counter > 0) {         functionHolder(counter-1);     } }   With this, functionHol...
I have used JSperf to test a small sample of code.    According to a few articles I came across, both should have similar performance with test2 having a little edge. But here it's the complete opposite. Can someone explain why the huge differenc...
Only functions expressions can be immediately invoked:  (function () {     var x = "Hello!!";      // I will invoke myself })();   But not function declarations? Is this because function declarations are hoisted and already execute immediatel...
In JavaScript, if I create a function expression like:  var foo = function foo() {   return 'Hello world!'; }   Is this okay? Will there be any problems that occur? Or should I do:  var foo = function baz() {   return 'Hello world!';...
In JavaScript, when using a function expression (e.g. var myFunc = function() {...}), like any other variable declaration, you have to define the variable before using it. For example, the following example will not work (will result in Uncaught Type...
I would like to create a new object of the type InvertedPeninsula:  var invertedPeninsula = new InvertedPeninsula();   To create this object type, I use an object constructor function:      var InvertedPeninsula = function() {   this.inhabitants = [...
I have this function on an object that I need to trace REALLY BADLY, along with the parent caller of the invocation and arguments passed to the caller.  This well works until minified:  var foo = {     FunctionToBeLogged: function GiveMeAName() {...
When commenting out the anonymous function expression "a" below, how do you properly check for NULL on "b"? Use case: Lets say "a" is an in-page JS include (library) that is assigned to "b", but the library failed to l...

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