How to Get the Name of the Current Function in JavaScript?

Getting the Name of the Currently Running Function in JavaScript

JavaScript does not natively provide a way to retrieve the name of the currently executing function. However, there are workarounds available.

ES5 and Above:

In ES5 and newer versions of JavaScript, it is not possible to directly retrieve the function name.

ES3 and Below:

In older versions of JavaScript (ES3 and below), you can use the arguments.callee property to access the currently executing function. However, the function name may include extra characters, so some parsing may be necessary. For example:

<code class="javascript">function DisplayMyName() {
    var myName = arguments.callee.toString();
    myName = myName.substr('function '.length);
    myName = myName.substr(0, myName.indexOf('('));

    alert(myName);
}</code>

Dojo and jQuery:

Neither the Dojo nor jQuery frameworks directly provide a way to get the current function name. However, they may offer other utilities that can assist in parsing the name from the arguments.callee property.

Limitations:

Note that the arguments.callee property is considered deprecated in ECMAScript 5 and may be removed in future versions of JavaScript.

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