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Javascript - Random Choice Picker 본문

Javascript

Javascript - Random Choice Picker

HiroDaegu 2021. 10. 28. 00:22
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<!DOCTYPE html>
<html lang="ko">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Random Choice Picker</title>
  <link rel="stylesheet" href="style.css">
  <script defer src="main.js"></script>
</head>
<body>
  <div class="container">
    <h3>Enter all of the choices divided by a comma (','). <br> Press enter when you're done</h3>
    <textarea placeholder="Enter choices here..." id="textarea"></textarea>
    <div id="tags"></div>
  </div>
</body>
</html>
@import url('https://fonts.googleapis.com/css2?family=Muli&display=swap');

* {
  box-sizing: border-box;
}

body {
  background-color: #2b88f0;
  font-family: 'Muli', sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
  margin: 0;
}

h3 {
  color: #fff;
  margin: 10px 0 20px;
  text-align: center;
}

.container {
  width: 500px;
}

textarea {
  border: none;
  display: block;
  width: 100%;
  height: 100px;
  font-family: inherit;
  padding: 10px;
  margin: 0 0 20px;
  font-size: 16px;
}

.tag {
  background-color: #f0932b;
  color: #fff;
  border-radius: 50%;
  padding: 10px 20px;
  margin: 0 5px 10px 0;
  font-size: 14px;
  display: inline-block;
}

.tag.highlight {
  background-color: #273c75;
}
const tagsEl = document.getElementById("tags");
const textarea = document.getElementById("textarea");

textarea.focus();

textarea.addEventListener("keyup", (e) => {
  createTags(e.target.value);

  if(e.key === "Enter") {
    setTimeout(() => {
      e.target.value = ""
    }, 10)

    randomSelect();
  }
})

function createTags(input) {
  const tags = input.split(',').filter(tag => tag.trim() !== '').map(tag => tag.trim())

  tagsEl.innerHTML = "";

  tags.forEach(tag => {
    const tagEl = document.createElement("span");
    tagEl.classList.add("tag");
    tagEl.innerText = tag;
    tagsEl.appendChild(tagEl);
  })
}

function randomSelect() {
  const times = 30;
  const interval = setInterval(() => {
    const randomTag = pickRandomTag()

    highlightTag(randomTag);

    setTimeout(() => {
      unhighlightTag(randomTag)
    }, 100)
  }, 100);

  setTimeout(() => {
    clearInterval(interval);

    setTimeout(() => {
      const randomTag = pickRandomTag();

      highlightTag(randomTag);
    }, 100)
  }, times * 100);
}

function pickRandomTag() {
  const tags = document.querySelectorAll(".tag");
  return tags[Math.floor(Math.random() * tags.length)];
}

function highlightTag(tag) {
  tag.classList.add("highlight");
}

function unhighlightTag(tag) {
  tag.classList.remove("highlight");
}
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