[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Returns a reference to the function that invoked the current function.
functionName.caller
The functionName object is the name of any executing function.
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."); }
Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards. Also supported in Metro style apps. See Version Information.
Applies To: Function Object (JavaScript)