Programmatically stop JavaScript execution in Firebug

Nikko picture Nikko · Aug 12, 2009 · Viewed 33.9k times · Source

I am currently debugging complex JavaScript code with Firebug. I am looking for a way to stop the JavaScript execution as if it was a breakpoint programmatically.

Example:

instructions ...
degugger.breakpoint(); // the execution stops here as if a breakpoint was
                       // manually set
other instructions ...

Answer

RaYell picture RaYell · Aug 12, 2009

You can use the debugger statement:

// your JS code
...
// break here
debugger;

It works in all major browsers.