Linked Questions

512 votes

5 answers

172k views

What is the difference between the following lines of code? //Function declaration function foo() { return 5; } //Anonymous function expression var foo = function() { return 5; } //Named function ...

107 votes

8 answers

80k views

What's the difference between these two ways of declaring a function? function someFunc() { ... } var someFunc = function() { ... } I'm not asking in the technical sense. I'm not asking which is ...

71 votes

4 answers

36k views

Possible Duplicate: JavaScript: var functionName = function() {} vs function functionName() {} There are two possible methods for pulling out a function in Javascript: var foo = function() { ... }...

58 votes

7 answers

18k views

Possible Duplicate: JavaScript: var functionName = function() {} vs function functionName() {} What's the difference between: function sum(x, y) { return x+y; } // and var sum = function (x, ...

48 votes

5 answers

41k views

Possible Duplicate: JavaScript: var functionName = function() {} vs function functionName() {} In JavaScript, what's the purpose of defining a variable as a function? I've seen this convention ...

33 votes

3 answers

10k views

Possible Duplicate: JavaScript: var functionName = function() {} vs function functionName() {} Suppose we are inside a function and not in the global namespace. function someGlobalFunction() { ...

50 votes

1 answer

33k views

Possible Duplicate: JavaScript: var functionName = function() {} vs function functionName() {} Declaring functions in JavaScript I've seen 2 different syntaxes for defining functions in ...

31 votes

2 answers

25k views

Possible Duplicate: JavaScript: var functionName = function() {} vs function functionName() {} are they the same? I've always wondered

31 votes

5 answers

2k views

Possible Duplicate: JavaScript: var functionName = function() {} vs function functionName() {} What is the difference between a function expression vs declaration in Javascript? I am aware of ...

22 votes

2 answers

36k views

I'm trying to send a simple message from a child document (an iframe) back to its direct parent using the window.postMessage API. Within the parent document I have the following: window....

27 votes

3 answers

2k views

Is there any difference between function MyFunc() { // code... } and var MyFunc = function() { // code... }; in JavaScript?

8 votes

5 answers

29k views

On the window.onload event, I would like a function to be called. If I define it as given below, the function does not get called. try { window.addEventListener("load", initialiseTable, false); }...

4 votes

2 answers

1k views

I'm going through this blog about the difference between function declarations and function expressions. It gives these two examples. They call the first an "anonymous function expression" and the ...

3 votes

1 answer

2k views

Possible Duplicate: JavaScript: var functionName = function() {} vs function functionName() {} I've been going through CodeAcademy's Javascript courses, and a few things have gone over my head. I ...

4 votes

6 answers

770 views

Possible Duplicate: Javascript: var functionName = function() {} vs function functionName() {} Way 1: function fancy_function(){ // Fancy stuff happening here } Way 2: var fancy_function = ...