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https://www.youtube.com/watch?v=8OzR6vhTKx0

In computer programming, a function is a reusable block of code that performs a specific task. It is a self-contained unit of code that can be called from other parts of a program, and can be passed input values (called arguments or parameters) and return output values.

Functions are an essential building block in most programming languages, and they provide a way to break down a program into smaller, more manageable pieces of code. Functions can be used to perform a wide range of tasks, from simple calculations to complex operations, and can be used to build up more complex programs from simpler components.

Here's an example of a simple function in JavaScript that takes two parameters and returns their sum:

function addNumbers(a, b) {
  return a + b;
}

In this example, addNumbers() is a function that takes two parameters, a and b, and returns their sum using the + operator. The function can be called from other parts of the program, like this:

let result = addNumbers(2, 3);

In this example, the value of result would be 5, which is the sum of 2 and 3 passed in as arguments to the addNumbers() function.

Functions can be used to perform many different kinds of tasks, from simple calculations to complex data processing and manipulation. They provide a way to encapsulate code into reusable units, and make programs easier to understand and maintain.


I have created a video to explain these concepts.

If you want to learn more and see how to code these, click on Youtube https://youtu.be/8OzR6vhTKx0
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