How to Avoid Immediately Executing Functions Passed as Parameters in JavaScript?

Passing Functions as Parameters in JavaScript

Passing functions as parameters allows you to create reusable and customizable code. However, executing the function within the parent function can be undesirable. Here's how to avoid this.

Problem:

Consider the following code:

This statement calls refreshContactList() immediately, even though it's intended to be executed later.

Solution:

To pass the function without executing it, simply remove the parentheses:

Example:

In this scenario, refreshContactList() is passed as a parameter and will be executed within the addContact() function.

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