How do you find out the caller function in JavaScript when use strict is enabled?

by

For what it’s worth, I agree with the comments above. For whatever problem you’re trying to solve, there are usually better solutions.

However, just for illustrative purposes, here’s one (very ugly) solution:

'use strict'

function jamie (){
    var callerName;
    try { throw new Error(); }
    catch (e) { 
        var re = /(\w+)@|at (\w+) \(/g, st = e.stack, m;
        re.exec(st), m = re.exec(st);
        callerName = m[1] || m[2];
    }
    console.log(callerName);
};

function jiminyCricket (){
   jamie();
}

jiminyCricket(); // jiminyCricket

I’ve only tested this in Chrome, Firefox, and IE11, so your mileage may vary.

More Related Contents:

  1. What does "use strict" do in JavaScript, and what is the reasoning behind it?
  2. Why is “this” in an anonymous function undefined when using strict?
  3. How to remove global “use strict” added by babel
  4. Double digit 30 seconds countdown
  5. Difference between .ajaxSubmit() vs .submit()
  6. How do comparison operator in JavaScript work? Comparing string to string, string to number
  7. Using HTML5/Canvas/JavaScript to take in-browser screenshots
  8. Check if a user has scrolled to the bottom (not just the window, but any element) [duplicate]
  9. AngularJS : Initialize service with asynchronous data
  10. Most efficient way to create a zero filled JavaScript array?
  11. How to list subcollections in a Cloud Firestore document
  12. Get data from fs.readFile
  13. How to convert date to timestamp?
  14. Connecting to TCP Socket from browser using javascript
  15. How do I programatically select an HTML option using JavaScript?
  16. New line in JavaScript alert box
  17. How to communicate between popup.js and background.js in chrome extension?
  18. Npm install cannot find module ‘semver’
  19. If JavaScript has first-class functions, why doesn’t calling this function in a variable work?
  20. Read :hover pseudo class with javascript
  21. Browser back button handling
  22. Calling onclick on a radiobutton list using javascript
  23. How does Javascript know what type a variable is?
  24. React 18 strict mode causing component to render twice [duplicate]
  25. How do I create an abstract base class in JavaScript?
  26. How to use Javascript to check and load CSS if not loaded?
  27. Drawing arrows on an HTML page to visualize semantic links between textual spans
  28. Detecting user inactivity over a browser – purely through javascript [duplicate]
  29. Converting Chart.js canvas chart to image using .toDataUrl() results in blank image
  30. What’s the difference between a jQuery object and a DOM element? Difference between .get() and .index()?

Leave a Comment