javascript run code example

Example 1: javascript run command

const { execSync } = require('child_process');

const output = execSync('ls', { encoding: 'utf-8' });

console.log('The output is:');
console.log(output);

Example 2: online javascript compiler

// my pick for the top 8 online javascript compilers

https://playcode.io/
https://jsfiddle.net/
https://js.do/
https://jseditor.io/
https://jsbin.com/?html,output
https://repl.it/languages/javascript
https://www.tutorialspoint.com/online_javascript_editor.php
https://paiza.io/en/projects/new?language=javascript

Example 3: javascript runne

f(x) = 7x + 4

Example 4: how to run js script

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