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script.js
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script.js
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const pwElement = document.getElementById('pw')
const copyElement = document.getElementById('copy')
const lenElement = document.getElementById('len')
const upperElement = document.getElementById('upper')
const lowerElement = document.getElementById('lower')
const numberElement = document.getElementById('number')
const symbolElement = document.getElementById('symbol')
const generateElement = document.getElementById('generate')
const upperLetters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
const lowerLetters = 'abcdefghijklmnopqrstuvwxyz'
const numbers = '0123456789'
const symbols = '!@#$%^&*()_'
function getUppercase() {
return upperLetters[Math.floor(Math.random() * upperLetters.length)]
}
function getLowercase() {
return lowerLetters[Math.floor(Math.random() * lowerLetters.length)]
}
function getNumber() {
return numbers[Math.floor(Math.random() * numbers.length)]
}
function getSymbol() {
return symbols[Math.floor(Math.random() * symbols.length)]
}
function generatePassword() {
const len = lenElement.value
let password = ''
if(upperElement.checked) {
password += getUppercase()
}
if(lowerElement.checked) {
password += getLowercase()
}
if(numberElement.checked) {
password += getNumber()
}
if(symbolElement.checked) {
password += getSymbol()
}
for(let i = password.length; i < len; i++) {
const x = generateX()
password += x
}
pwElement.innerText = password
}
function generateX() {
const xs = []
if(upperElement.checked) {
xs.push(getUppercase())
}
if(lowerElement.checked) {
xs.push(getLowercase())
}
if(numberElement.checked) {
xs.push(getNumber())
}
if(symbolElement.checked) {
xs.push(getSymbol())
}
if(xs.length === 0) return ''
return xs[Math.floor(Math.random() * xs.length)]
}
generateElement.addEventListener('click', generatePassword)
copyElement.addEventListener('click', () => {
const textarea = document.createElement('textarea')
const password = pwElement.innerText
if(!password) return
textarea.value = password
document.body.appendChild(textarea)
textarea.select()
document.execCommand('copy')
textarea.remove()
alert('Password copied to clipboard')
})