Obsolete
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
The obsolete arguments.caller property used to provide the function that invoked the currently executing function. This property has been removed and no longer works.
Description
This property is not available anymore, but you can still use Function.caller.
function whoCalled() {
if (whoCalled.caller == null)
console.log('I was called from the global scope.');
else
console.log(whoCalled.caller + ' called me!');
}
Examples
The following code was used to check the value of arguments.caller in a function, but doesn't work anymore.
function whoCalled() {
if (arguments.caller == null)
console.log('I was called from the global scope.');
else
console.log(arguments.caller + ' called me!');
}
Specifications
Not part of any standard. Implemented in JavaScript 1.1 and removed in bug 7224 due to potentially vulnerable for security.
Browser compatibility
Supported nowhere. Historically supported in IE 3 till IE 9.