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script.js
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script.js
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const resultEl = document.getElementById('result');
const lengthEl = document.getElementById('length');
const uppercaseEl = document.getElementById('uppercase');
const lowercaseEl = document.getElementById('lowercase');
const numbersEl = document.getElementById('numbers');
const symbolsEl = document.getElementById('symbols');
const generateEl = document.getElementById('generate');
const clipboard = document.getElementById('clipboard');
const quantityEl = document.getElementById('quantity');
const randomFunc = {
lower: getRandomLower,
upper: getRandomUpper,
number: getRandomNumber,
symbol: getRandomSymbol
}
clipboard.addEventListener('click', () =>{
var codeToBeCopied = resultEl.value;
var emptyArea = document.createElement('TEXTAREA');
emptyArea.innerHTML = codeToBeCopied;
document.body.appendChild(emptyArea);
emptyArea.select();
document.execCommand('copy');
document.body.removeChild(emptyArea);
alert('Password copied to clipboard');
});
function auto_grow(element) {
element.style.height = "20px";
element.style.height = (element.scrollHeight) +20 + "px";
}
generate.addEventListener('click', () => {
const length = +lengthEl.value;
const hasLower = lowercaseEl.checked;
const hasUpper = uppercaseEl.checked;
const hasNumber = numbersEl.checked;
const hasSymbol = symbolsEl.checked;
const quantity = quantityEl.value;
resultEl.innerText = generatePassword(hasLower, hasUpper, hasNumber, hasSymbol, length, quantity);
resultEl.style.height = (resultEl.scrollHeight) + 20 + "px";
});
function generatePassword(lower, upper, number, symbol, length, quantity) {
let generatedPassword = '';
let finalPassword = '';
let printpassword = "";
const typesCount = lower + upper + number + symbol;
const typesArr = [{ lower }, { upper }, { number }, { symbol }].filter(item => Object.values(item)[0]);
if (typesCount === 0) {
return '';
}
for (let j = 0; j < quantity; j++) {
for (let i = 0; i < length; i += typesCount) {
typesArr.forEach(type => {
const funcName = Object.keys(type)[0];
generatedPassword += randomFunc[funcName]();
});
finalPassword = generatedPassword.slice(0, length);
}
if (j == (quantity - 1)) {
printpassword = printpassword + finalPassword;
}
else {
printpassword = printpassword + finalPassword + "\n";
}
generatedPassword = "";
resultEl.value = printpassword;
}
}
function getRandomLower() {
return String.fromCharCode(Math.floor(Math.random() * 26) + 97);
}
function getRandomUpper() {
return String.fromCharCode(Math.floor(Math.random() * 26) + 65);
}
function getRandomNumber() {
return +String.fromCharCode(Math.floor(Math.random() * 10) + 48);
}
function getRandomSymbol() {
const symbols = '!@#$%^&*(){}[]=<>/,.'
return symbols[Math.floor(Math.random() * symbols.length)];
}