How to increase number of Call Stack entries in Google Chrome Developer Tools (or Firefox Firebug)? I am getting a Javascript error in a third party control's Javascript. All the calls in the Call Stack window do not belong to my own code. I want to know which line in my code triggered the sequence of events. The Call Stack is not large enough to display something from my own code.
Chrome solution
https://github.com/v8/v8/wiki/Stack%20Trace%20API
can set via commandline on startup --js-flags="--stack-trace-limit <value>"
or at runtime at loading a page: Error.stackTraceLimit=undefined //unlimited stack trace
In Chrome (also in node), you can type this in the js console:
Error.stackTraceLimit = Infinity;
Alternatively see this page for Chrome command line flags: https://v8.dev/docs/stack-trace-api (need to restart Chrome):
$ google-chrome --js-flags="--stack-trace-limit 10000"
I don't think there's a limit on call stack size*). Usually a stack trace that seems to come out of nowhere results from either
- an event listener
- a timeout (
window.setTimeout
) - an interval (
window.setInterval
) - some script loading after page has loaded (possibly iframe)
*) Of course, technically there certainly is some limit, but I gues it's practically irrelevant. Probably longint or something.
edit: From Firebug source code:
if (trace.frames.length > 100) // TODO in the loop above
{
var originalLength = trace.frames.length;
trace.frames.splice(50, originalLength - 100);
var excuse = "(eliding "+(originalLength - 100)+" frames)";
trace.frames[50] = new StackFrame.StackFrame({href: excuse}, 0, excuse,
[], null, null, context);
}
So Firebug will always show the first 50 and the last 50 items ("frames") of the call stack.
来源:https://stackoverflow.com/questions/9931444/how-to-increase-number-of-call-stack-entries-in-google-chrome-developer-tools-o