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return | Functions
Introduction to JavaScript
course content

Contenido del Curso

Introduction to JavaScript

Introduction to JavaScript

1. Basic Concepts
2. Variables and Data Types
3. Basic Operations
4. Conditional Statements
5. Loops
6. Functions

return

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:

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function add(a, b) { return a + b; } let sum = add(25, 30); console.log("sum =", sum);
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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:

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

¿Todo estuvo claro?

Sección 6. Capítulo 5
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