In this tutorial, we will learn how to write a function in JavaScript.
Functions:
- JavaScript functions perform the simplest task.
- They allow a set of instructions to execute them whenever needed.
- The JavaScript Functions are understandable for everyone.
- They give simple execution.
- Functions give the easiest way to declare variables and expressions.
- Functions give the Return Statement also.
JavaScipt Funtion Example:
<html> <head> <meta charset=utf-8 /> <title>JavaScript Functions</title> <script> function msg(lastName) { function welcome() { console.log("Welcome " + lastName); } return welcome; } var greet= msg("Pendyala"); greet(); </script> </head> <body> </body> </html>
output:
Welcome Pendyala