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Javascript - Password Generator 본문

Javascript

Javascript - Password Generator

HiroDaegu 2021. 10. 25. 00:10
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<!DOCTYPE html>
<html lang="ko">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link
      rel="stylesheet"
      href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.14.0/css/all.min.css"
      integrity="sha512-1PKOgIY59xJ8Co8+NE6FZ+LOAZKjy+KY8iq0G4B3CyeY6wYHN3yt9PW0XpSriVlkMXe40PTKnXrLnZ9+fkDaog=="
      crossorigin="anonymous"
    />
    <link rel="stylesheet" href="style.css" />
    <title>Password Generator</title>
    <script defer src="main.js"></script>
  </head>
  <body>
    <div class="container">
      <h2>Password Generator</h2>
      <div class="result-container">
        <span id="result"></span>
        <button class="btn" id="clipboard">
          <i class="far fa-clipboard"></i>
        </button>
      </div>
      <div class="settings">
        <div class="setting">
          <label>Password Length</label>
          <input type="number" id="length" min="4" max="20" value="20"> 
        </div>
        <div class="setting">
          <label>Include uppercase letters</label>
          <input type="checkbox" id="uppercase" checked>
        </div>
        <div class="setting">
          <label>Include lowercase letters</label>
          <input type="checkbox" id="lowercase" checked>
        </div>
        <div class="setting">
          <label>Include numbers</label>
          <input type="checkbox" id="numbers" checked>
        </div>
        <div class="setting">
          <label>Include symbols</label>
          <input type="checkbox" id="symbols" checked>
        </div>
      </div>
      <button class="btn btn-large" id="generate">
        Generate Password
      </button>
    </div>
  </body>
</html>
@import url('https://fonts.googleapis.com/css?family=Muli&display=swap');

* {
  box-sizing: border-box;
}

body {
  background-color: #3b3b98;
  color: #fff;
  font-family: 'Muli', sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
  padding: 10px;
  margin: 0;
}

h2 {
  margin: 10px 0 20px;
  text-align: center;
}

.container {
  background-color: #23235b;
  box-shadow: 0px 2px 10px rgba(255, 255, 255, .2);
  padding: 20px;
  width: 350px;
  max-width: 100%;
}

.result-container {
  background-color: rgba(0, 0, 0, .4);
  display: flex;
  justify-content: flex-start;
  align-items: center;
  position: relative;
  font-size: 18px;
  letter-spacing: 1px;
  padding: 12px 10px;
  height: 50px;
  width: 100%;
}

.result-container #result {
  word-wrap: break-word;
  max-width: calc(100% - 40px);
}

.result-container .btn {
  position: absolute;
  top: 5px;
  right: 5px;
  width: 40px;
  height: 40px;
  font-size: 20px;
}

.btn {
  border: none;
  background-color: #3b3b98;
  color: #fff;
  font-size: 16px;
  padding: 8px 12px;
  cursor: pointer;
}

.btn-large {
  display: block;
  width: 100%;
}

.setting {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 15px 0;
}
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 clipboardEl = document.getElementById("clipboard");

const randomFunc = {
  lower: getRandomLower,
  upper: getRandomUpper,
  number: getRandomNumber,
  symbol: getRandomSymbol
}


generateEl.addEventListener("click", () => {
  const length = +lengthEl.value;
  // console.log(length)
  const hasLower = lowercaseEl.checked;
  const hasUpper = uppercaseEl.checked;
  const hasNumer = numbersEl.checked;
  const hasSymbol = symbolsEl.checked;

resultEl.innerText = generatePassword(hasLower, hasUpper, hasNumer, hasSymbol, length)
  
})

clipboardEl.addEventListener("click", () => {
  // alert(`Copied! ${resultEl.innerText}`)
  const textarea = document.createElement("textarea");
  const password = resultEl.innerText;

  if(!password) {
    return 
  }

  textarea.value = password
  document.body.appendChild(textarea);
  textarea.select();
  document.execCommand("copy");
  textarea.remove();
  alert("Password copied to clipboard!")
})

function generatePassword(lower, upper, number, symbol, length) {
  let generatePassword = " ";
  const typesCount = lower + upper + number + symbol;
  // console.log(typesCount)
  const typesArr = [{lower}, {upper}, {number}, {symbol}].filter(item => Object.values(item)[0]);
  // console.log(typesArr)

  if(typesCount === 0) {
    return  " ";
  } 

  for(let  i =0; i < length; i+=typesCount) {
    typesArr.forEach(type => {
      const funcName = Object.keys(type)[0];
      // console.log(funcName)
      generatePassword += randomFunc[funcName] ()
    })
  }

  const finalPassword = generatePassword.slice(0, length)

  return finalPassword;
}

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)]
}

// console.log(getRandomSymbol())
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