misspelling javascript function alert to alerler('hell'); and firebug doesn't report an error?

Question

misspelling javascript function alert to alerler('hell'); and firebug doesn't report an error.

Why is that? It is enabled for localhost (or my site).

Answer 1

Works On My Machine^TM, or should I say Doesn't Work On My Machine^TM

>>> alerler('test');
ReferenceError: alerler is not defined

Answer 2

I'm guessing you mean you have a <script> that has a call to alerler somewhere, right? Well, Firebug only catches errors for code that gets run. ;) So if the code with the misspelled function isn't actually run after the page loads, Firebug won't catch the error. This is the only reason I can think of as to why Firebug didn't catch your error.

Answer 3

Maybe your FireFox Error Console (Ctrl+Shift+J) could help you on that

Answer 4

Firebug has some weird quirks sometimes like if you setup a debugger; and refresh the page without stopping the debugger, firebug well no longer work properly. Sometimes you get lucky and don't have to restart the browser.

Answer 5

This is very unlikely, could you have defined a function?

function alerler(text) {
    // this is a possibility!
}

Though, I would say musicfreak has the most probable reason.