Could you explain the importance of using clearTimeout in debounce function? Let's take a look at the code below:
const saveInput = (name) => {
console.log('saveinput ', name);
}
const debounce = (fn, timeout = 3000) => {
let timer;
return (...args) => {
clearTimeout(timer);
timer = setTimeout(() => {
fn.apply(this, args);
}, timeout)
}
}
const processChange = debounce(saveInput, 2000);
processChange("foo");
processChange("foo");
processChange("foo");
processChange("foo");
processChange("foo");By commenting out clearTimeout and running the code, "foo" is printed five times. However, with clearTimeout included, "foo" is only printed once. I would like to understand how exactly clearTimeout affects the execution, especially in terms of the event loop. Any clarification on this matter would be greatly appreciated.