JSFiddle - React, Tailwind, and code Playground

by birdie2019

HTML

<div class="container">
  <h1>待辦事項</h1>
  <div id="input-panel">
    <input type="text" id="input" placeholder="請輸入待辦事項...">
    <select id="event-cat">
      <option value="none" selected disabled hidden>事項分類</option>
      <option value="normal">一般</option>
      <option value="important">重要</option>
      <option value="urgent">緊急</option>
    </select>
    <button class="add-btn" onclick="add()" >+</button>
  </div>
  
</div>
<div class="container">
  <ul id="list">
  </ul>
  <button id="export-btn">匯出</button>
</div>

CSS

* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  font-size: 10px;
  color: #606060;
}

body {
  background-color: #FFF0DF;
}

.container {
  width: 400px;
  margin: 30px auto;
}

/* input-panel */
h1 {
  text-align: center;
  font-size: 2.4rem;
  letter-spacing: 3px;
  
}

#input-panel {
  display: flex;
  justify-content: center;
  margin: 10px 0;
}

#input-panel > input {
  flex: 1;
  padding: 10px 8px;
  border-radius: 5px 0 0 5px;
  border: 0;
  outline: 0;
  font-size: 1.5rem;
  letter-spacing: 1px;
}

#event-cat {
  border: 0;
  border-left: 3px solid #fffaf5;
  width: 100px;
  font-size: 1.5rem;
  letter-spacing: 1px;
  outline: 0;
  text-align: center;
}

.add-btn {
  border: 0;
  width: 40px;
  border-radius: 0 5px 5px 0;
  font-size: 1.8rem;
  font-weight: 700;
  cursor: pointer;
  background-color: #546A76;
  color: #fff;
}

/* list */

#list > li {
  display: flex;
  justify-content: space-between;
  background-color: rgba(255, 255, 255, 0.8);
  padding: 10px 8px;
  margin-bottom: 8px;
  border-radius: 5px;
}

#list > li > span {
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 1px;
}

#list > li > button {
  background-color: transparent;
  border: 0;
  cursor: pointer;
  font-size: 1.8rem;
  font-weight: 900;
  transition: all 0.3s; 
}

#list > li > button:hover {
  color: #FA829C;
  transform: scale(1.3);
}

/* export-btn */
#export-btn {
  background-color: #8E6F64;
  border: 0;
  color: #fff;
  border: 1px solid #AC8172;
  padding: 4px 20px 4px 4px;
  font-size: 1.5rem;
  letter-spacing: 1px;
  border-radius: 5px;
  position: relative;
  margin-top: 10px;
  cursor: pointer;
  transition: all 0.3s;
}

.normal {
  color: #6B8F71;
}
.important {
  color: #F49344;
}
.urgent {
  color: #BF1802;
}

#export-btn::before {
  content: '';
  position: absolute;
  width: 6px;
  height: 8px;
  background-color: #fff;
  top: 45%;
  right: 9px;
}

#export-btn::after {
  content: '';
  position:...

JavaScript

function add() {
  var input = document.getElementById('input');
  var list = document.getElementById('list');
  var li = document.createElement('li');
  var span = document.createElement('span');
  var btn = document.createElement('button');
  var eventCat = document.getElementById('event-cat');
  var eventCatIndex = eventCat.selectedIndex;
  var eventValue = eventCat.options[eventCatIndex].value;
  var inputValue = input.value;
  if (eventValue != 'none' && inputValue != '') {
      list.append(li);
      li.append(span);
      span.className = eventValue;
      li.append(btn);
      btn.onclick = deleteLi;
      btn.textContent = 'x';
      span.textContent = inputValue;
      input.value = '';
      eventCat.value = 'none';
  } else {
      alert('請填寫待辦事項和事件分類');
  }
}

function deleteLi() {
	var yes = confirm('確定要刪除嗎？');
  if (yes) {
  	event.target.parentElement.remove();
  }
}

var exportBtn = document.getElementById('export-btn');
exportBtn.onclick = exportList;

function exportList() {
  var list = document.getElementById('list').children;
  var text = ''; 
  var num = 1;
  for (var item of list) {
  var getClassName = item.children[0].className;
  if (getClassName == 'normal') {
    text = text + num.toString() + '.' + ` ` + item.children[0].textContent + ` `;
  } else if (getClassName == 'important') {
    text = text + num.toString() + '.' + ` ` + '*' + item.children[0].textContent+ '*' + ` `;
  } else {
    text = text + num.toString() + '.' + ` ` + '**' + item.children[0].textContent+ '**' + ` `;
  }
  num = num + 1;
  }
  if (text != ''){
  	alert('今日待辦：' + text);
  } else {
  	alert('今日無待辦事項');
  }  
}