How can IIFEs help overcome the limitations of event listeners in fast loops?

Overcoming the Limitation of EventListeners in Fast Loops Using Closures

Challenge:
Adding event listeners to multiple objects using a for loop often leads to all listeners targeting the same object in JavaScript. This happens due to the closure's scope.

Solution:
To resolve this issue, use an Immediately Invoked Function Expression (IIFE) within the loop. This creates a new scope for each iteration, allowing the variables to be referenced correctly.

Example:

// Function to run on click:
function makeItHappen(elem, elem2) {
    var el = document.getElementById(elem);
    el.style.backgroundColor = "red";
    var el2 = document.getElementById(elem2);
    el2.style.backgroundColor = "blue";
}

// Autoloading function to add the listeners:
var elem = document.getElementsByClassName("triggerClass");

for (var i = 0; i <p><strong>Explanation:</strong><br>In this code, the IIFE is used to create a new scope for each iteration. This ensures that the variables boxa and boxb are correctly referenced and the event listeners are assigned to the appropriate container elements.</p><p><strong>Key Insight:</strong><br>Closures are crucial in JavaScript when working with loops that involve passing values. By creating new scopes using IIFEs, you can prevent closure-related issues, ensuring that your code behaves as intended.</p>

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