Summary  
This chapter explains how to use the `return` keyword in a function to pass a value back to its caller and immediately terminate the function’s execution, ensuring no code after the `return` is run.

General domain of usage  
Mathematical computations

The primary purpose of a function is to return a value.

The function's space is deleted after its execution, and you rarely output information directly from the function to the console.

The `return` keyword is used to perform the value return operation, and it signifies the end of the function's execution:

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

let sum = add(25, 30);

console.log("sum =", sum);

In the example above, you can see that the function call (`add(25, 30)`) is replaced by the value `55` (25 + 30) after the `return` keyword.

> Note
>
> The function completes its execution and returns a value at the point of call, and the function's space is cleared.

It's also essential to understand that the `return` keyword terminates the execution of the function. Any code after the `return` statement will not be executed:

function add(a, b) {
  return a + b;
  console.log("Two numbers added");
  console.log("Two numbers added");
  console.log("Two numbers added");
  console.log("Two numbers added");
}

let numb = add(25, 12);

console.log("numb =", numb);

The `console.log()` statements after the `return` statement were not executed.

What does the `return` keyword do inside a JavaScript function?

Learn the fundamentals of JavaScript, the backbone of dynamic web development. Discover essential concepts like syntax, variables, data types, and operators. Explore how to use conditional statements, loops, and functions to create interactive and efficient programs. Master the building blocks of JavaScript and lay the groundwork for more advanced programming skills.

Discover the fundamentals of JavaScript, including its purpose and syntax. Learn how to work with the console for output and use comments to organize and document your code. These foundational skills will prepare you for a deeper exploration of JavaScript's capabilities.

Explore the building blocks of JavaScript by distinguishing between literals and variables. Understand the core data types, including `null` and arrays, and learn how to manipulate them using array methods.

Learn how to manipulate JavaScript's data types through essential operations. Master assignment, mathematical operations, incrementing and decrementing, comparisons, logical operations, and string concatenation.

Discover how to control the flow of your programs with conditional statements. Master `if`, `else`, and `else if` to instruct JavaScript on making decisions and executing code based on different conditions.

Streamline your code by mastering JavaScript's looping structures. Explore `while`, `do while`, and `for` loops, and learn how to control their behavior using `break` and `continue`. Unlock the power of loops to perform repetitive tasks efficiently.

Discover the power of functions in JavaScript. Learn how to define functions, work with arguments, and use the `return` statement to create reusable and efficient code. Mastering functions will enhance your ability to write clean and modular programs.

Returning Values from Functions