Introduction to JavaScript Functions

Introduction to JavaScript Functions

Functions are reusable blocks of code that perform a specific task. In this tutorial, we will cover the basics of JavaScript functions.

Creating a Function

To create a function in JavaScript, you can use the function keyword followed by the name of the function and a list of parameters in parentheses. Here is an example of how to create a function:

function greet(name) {
  console.log(`Hello, ${name}!`);
}

Calling a Function

To call a function in JavaScript, you can simply use the name of the function followed by a list of arguments in parentheses. Here is an example of how to call a function:

function greet(name) {
  console.log(`Hello, ${name}!`);
}
greet('John Doe');

Function Return Values

Functions in JavaScript can return values using the return statement. Here is an example of how to return a value from a function:

function add(a, b) {
  return a + b;
}
let result = add(2, 3);
console.log(result);

Conclusion

In this tutorial, we covered the basics of JavaScript functions. We learned how to create functions using the function keyword, how to call functions, and how to return values from functions.