Applies to: Function Object
The caller property is used to get a reference to the function that invoked the current function.
Syntax
functionname.caller
Return
Returns a reference to the function that invoked the current function.
Example
The caller property is only defined for a function while that function is executing. If the function is called from the top level of a JavaScript program, caller contains null.
If the caller property is used in a string context, the result is the same as functionname.toString, that is, the decompiled text of the function is displayed.
The following example illustrates the use of the caller property:
function CallLevel()
{
if (CallLevel.caller == null)
return("CallLevel was called from the top level.");
else
return("CallLevel was called by another function.");
}
function CallMe()
{
return(CallLevel());
}
document.write(CallLevel());
document.write(CallMe());
|
 To run the code above, paste it into JavaScript Editor, and click the Execute button.
See also: function Statement |
