What is the output of the following? “`js const fn = (function() { let count = 0; return { increment: () => ++count, getCount: () => count }; })(); fn.increment(); fn.increment(); console.log(fn.getCount()); “`

Question

JavaScript Professional — Medium

What is the output of the following? “`js const fn = (function() { let count = 0; return { increment: () => ++count, getCount: () => count }; })(); fn.increment(); fn.increment(); console.log(fn.getCount()); “`

Accepted Answer

The output of the code is 2 because the `fn` object is created as an IIFE (Immediately Invoked Function Expression) that maintains a private `count` variable. Each time `fn.increment()` is called, the `count` variable is incremented, resulting in a final count of 2.