Why can't I assign a variable inside a function in Javascript?

Question

Very new to JS here. When I write PHP I have no problem assigning variables inside a function, but inside a JavaScript function it doesn't work. Why?

example:

function hello() {

var animal = 'Dog';
document.write(animal);

}

Define "doesn't work". The variable assignment should work fine. — NullUserException
– NullUserException, Commented Aug 2, 2010 at 0:55

DVK · Accepted Answer · 2010-08-02 00:54:22Z

7

Are you calling the hello() function anywhere? If not, you will not execute the contents of the function and thus, no write will happen.

answered Aug 2, 2010 at 0:54

DVK

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1 Comment

I tried the same code on a new page and it worked fine, something on the other page must have been interfering.

Starx · Accepted Answer · 2010-08-02 00:56:45Z

1

put this snippet inside your function to check if your function is being called

alert('snippet');

If a message box appears, your code should work, but if it does not then the function is not being executed, post some html coding also.

answered Aug 2, 2010 at 0:56

Starx

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