How to run javascript on your terminal code example

Example 1: how to run javascript in terminal

// With node.js installed in windows commandline
C:\Users\Name> node
> console.log("Hello World");
Hello World
undefined
>

Example 2: how to run js script

$ node // now we can execute code in console
> 2 + 4 //our input
6 //output 
> .exit // or ctrl + c