Tal Tal - 1 year ago 198
Javascript Question

How to get JavaScript caller function line number? How to get JavaScript caller source URL?

I am using the following for getting the JavaScript caller function name:

var callerFunc = arguments.callee.caller.toString();
callerFuncName = (callerFunc.substring(callerFunc.indexOf("function") + 8, callerFunc.indexOf("(")) || "anoynmous")

Is there a way to discover the line number from which the method was called?

Also, is there a way to get the name of the JavaScript file the method was called from? Or the source URL?

Answer Source

kangax's solution introduces unnecessary try..catch scope. If you need to access the line number of something in JavaScript (as long as you are using Firefox or Opera), just access (new Error).lineNumber.