It only generates the same number or characters

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I'm trying to generate a random password but it always prints the same number?!?

const characters = ["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z","a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9","~","`","!","@","#","$","%","^","&","*","(",")","_","-","+","=","{","[","}","]",",","|",":",";","<",">",".","?",
"/"];
let passElOne = document.getElementById("pass1");
let passElTwo = document.getElementById("pass2");

function generatePass()
{
   
        let randomChar = Math.floor(Math.random() * characters.length)
        let newChar = characters[randomChar]
       
    
        let randomPassword = ""
        for(i = 0; i < 15; i++)
        {
            randomPassword += newChar;
        }
        passElOne.textContent = randomPassword;
   
}

What I have tried:

I'm pretty limited on my javascript skills since I'm learning this language the only that I try is to write some if else conditions but it don't work

Posted 14-Jan-23 4:33am

oceanotrash

Updated 15-Jan-23 23:31pm

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3 solutions

Solution 2

Or you can use crypto lib built into browser

JavaScript

function bytestohex(bytes) {
    var hexstring='', h;
    for(var i=0; i<bytes.length; i++) {
        h=bytes[i].toString(16);
        if(h.length==1) { h='0'+h; }
        hexstring+=h;
    }   
    return hexstring;
}

bytestohex(window.crypto.getRandomValues(new Uint8Array(15)));

Posted 15-Jan-23 23:16pm

M@dHatter

Comments

Richard Deeming 16-Jan-23 5:22am

👍 Pretty good browser support too:
Crypto.getRandomValues() - Web APIs | MDN[^]

Solution 3

Lets see if you can figure out this one :)

JavaScript

[...Array(40)].map(e=>~~(Math.random()*40))

Posted 15-Jan-23 23:31pm

M@dHatter

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Richard MacCutchan · Accepted Answer · 2023-01-14T04:41:00

JavaScript

for(i = 0; i < 15; i++)
{
    randomPassword += newChar; // add the same character each time
}

You are adding 15 of the same character to your password. You need to generate a new random character each time round the loop:

JavaScript

for(i = 0; i < 15; i++)
{
    let randomIndex = Math.floor(Math.random() * characters.length)
    randomPassword += characters[randomIndex];
}

It only generates the same number or characters

3 solutions

Solution 1

Solution 2

Solution 3

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