What steps will reproduce the problem? 1. Use a use strict mode 2. Use the throttle function 3. Open console

What is the expected output? What do you see instead? No error. I see an error.

What version of the product are you using? On what operating system? Last verison

Please provide any additional information below. To avoid the problem and keep a use strict mode, give a name to the function :

                              if(!timer) {
                (function handleThrottle() { // HERE
                    if(needInvoke) {
                        fn.apply(ctx, args);
                        needInvoke = false;
                        timer = setTimeout(handleThrottle, timeout); //And call its name here
                    }
                    else {
                        timer = null;
                    }
                })();
            }