javascript random char code example

Example 1: generate random character in javascript

var characters = 'abcdefghijklmnopqrstuvwxyz0123456789';
var result = ""
var chaactersLength = characters.length;

for ( var i = 0; i < 5 ; i++ ) {
    result += characters.charAt(Math.floor(Math.random() * chaactersLength));
}

console.log(result)

Example 2: how to generate random string in node js

var crypto = require("crypto");
var id = crypto.randomBytes(20).toString('hex');

// "bb5dc8842ca31d4603d6aa11448d1654"

Example 3: javascript random char

const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
function generateRandomCode(){
    let result = ""
    let charactersLength = characters.length;
    for ( var i = 0; i < 6 ; i++ ) {
        result += characters.charAt(Math.floor(Math.random() * charactersLength));
    }
    return result
}