todo list in Vue.js with LocalStorage

index.html

  <div id="app">
    <section class="todo-wrapper">
      <h1 class="todo-title">{{ today.day }}<br>{{ today.date }}</h1>
      <form @keydown.enter.prevent="">
        <input type="text" class="input-todo" v-bind:class="{ active: new_todo }" placeholder="Take the garbage out" v-model="new_todo" v-on:keyup.enter="addItem">
        <div class="btn btn-add" v-bind:class="{ active: new_todo }"  @click="addItem">+</div>
      </form>

      <div v-if="pending.length > 0">
        <p class="status busy">You have {{ pending.length }} pending item<span v-if="todoList.length>1">s</span></p>
        <transition-group name="todo-item" tag="ul" class="todo-list">
          <li v-for="(item, index) in pending" v-bind:key="item.title">
            <input class="todo-checkbox" v-bind:id="'item_' + item.id" v-model="item.done" type="checkbox">
            <label v-bind:for="'item_' + item.id"></label>
            <span class="todo-text">{{ item.title }}</span>
            <span class="delete" @click="deleteItem(item)"></span>
          </li>
        </transition>  
      </div> 

      <transition name="slide-fade">
        <p class="status free" v-if="!pending.length" ><img src="https://nourabusoud.github.io/vue-todo-list/images/beer_celebration.svg" alt="celebration">Time to chill!  You have no todos.</p> 
      </transition> 

      <div v-if="completed.length > 0 && showComplete">
        <p class="status">Completed tasks: {{ completedPercentage }}</p>
        <transition-group name="todo-item" tag="ul" class="todo-list archived">
          <li v-for="(item, index) in completed" v-bind:key="item.title">
            <input class="todo-checkbox" v-bind:id="'item_' + item.id" v-model="item.done" type="checkbox">
            <label v-bind:for="'item_' + item.id"></label>
            <span class="todo-text">{{ item.title }}</span>
            <span class="delete" @click="deleteItem(item)"></span>
          </li>
        </transition>  
      </div>  
      <div class="control-buttons">
        <div class="btn btn-secondary" v-if="completed.length > 0" @click="toggleShowComplete"><span v-if="!showComplete">Show</span><span v-else>Hide</span> Complete</div>
        <div class="btn btn-secondary" v-if="todoList.length > 0" @click="clearAll">Clear All</div>
      </div>
    </section>
  </div>
  <footer>
    Made with <3 by <a href="https://www.nourabusoud.com/">Nour Soud</a><br>
    View on <a href="https://github.com/nourabusoud/vue-todo-list">Github</a>
  </footer>

script.js

new Vue({
  el: '#app',
  data() {
    return {
      todoList: [
        {"id":0,"title":"Go to codepen and get inspired","done":false},
        {"id":1,"title":"Pick a project","done":false},
        {"id":4,"title":"Create a new pen","done":true}
      ],
      new_todo: '',
      showComplete: false,
    };
  },
  computed: {},
  mounted() {
    this.getTodos();
  },
  watch: {
    todoList: {
      handler: function(updatedList) {
        localStorage.setItem('todo_list', JSON.stringify(updatedList));
      },
      deep: true
    }
  },
  computed:{
    pending: function() {
      return this.todoList.filter(function(item) {
        return !item.done;
      })
    },
    completed: function() {
      return this.todoList.filter(function(item) {
        return item.done;
      }); 
    },
    completedPercentage: function() {
      return (Math.floor((this.completed.length / this.todoList.length) * 100)) + "%";
    },
    today: function() {
      var weekday = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];
      var today = new Date();
      var dd = today.getDate();
      var mm = today.getMonth()+1; //January is 0!
      var yyyy = today.getFullYear();

      if(dd<10) {
          dd = '0'+dd
      } 

      if(mm<10) {
          mm = '0'+mm
      } 

      today = {
        day: weekday[today.getDay()],
        date:  mm + '-' + dd + '-' + yyyy,
      }

      return(today);
    }
  },
  methods: {
    // get all todos when loading the page
    getTodos() {
      if (localStorage.getItem('todo_list')) {
        this.todoList = JSON.parse(localStorage.getItem('todo_list'));
      }
    },
    // add a new item
    addItem() {
      // validation check
      if (this.new_todo) {
        this.todoList.unshift({
          id: this.todoList.length,
          title: this.new_todo,
          done: false,
        });
      }
      // reset new_todo
      this.new_todo = '';
      // save the new item in localstorage
      return true;
    },
    deleteItem(item) {
      this.todoList.splice(this.todoList.indexOf(item), 1);
    },
    toggleShowComplete() {
      this.showComplete = !this.showComplete;
    },
    clearAll() {
      this.todoList = [];
    }
  },
});

scripts

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.3/vue.min.js"></script>

style.css

*{
  box-sizing: border-box;
}

body{
  font-size: 15px;
  font-family: 'Open Sans', sans-serif;
  color: #444;
  background-color: #fefefe;
  background-image: linear-gradient(#fc6c48 0%, #ef5081 100%);
  background-repeat: no-repeat;
  background-size: cover;
  padding: 50px 20px;
  margin: 0;
  min-height: 100vh;
  position: relative;
}

.todo-wrapper{
  width: 400px;
  max-width: 100%;
  min-height: 500px;
  margin: 20px auto 40px;
  border: 1px solid #eee;
  border-radius: 4px;
  padding: 40px 20px;
  -webkit-box-shadow: 0 0 15px 0 rgba(0,0,0,0.05);
  box-shadow: 0 0 15px 0 rgba(0,0,0,0.05);
  background-color: #f4f7fc;
  overflow: hidden;
  position: relative;
}

.todo-title{
  font-size: 1.2em;
  color: #f65c65;
  font-weight: normal;
}

form{
  overflow: overlay;
}

form label{
  display: block;
  text-align: center;
  font-size: 1.2em;
}

.btn, input {
  line-height: 2em;
  border-radius: 3px;
  border: 0;
  display: inline-block;
  margin: 15px 0;
  padding: 0.2em 1em;
  font-size: 1em;
}

input[type='text'] {
  border: 1px solid #ddd; 
  min-width: 80%;
  transition: all ease-in 0.25s;
}

input:focus{
  outline: none;
  border: 1px solid #a3b1ff;
}

input::placeholder{
  color: rgba(0,0,0,0.3);
  font-style: italic;
}

.btn{
  text-align: center;
  font-weight: bold; 
  cursor: pointer;
  border-width: 1px;
  border-style: solid;
}

.btn-add {
  background: #ddd;
  color: #fefefe;
  border-color: #ddd;
  min-width: 17%;
  pointer-events: none;
  transition: all ease-in 0.25s;
  font-size: 2.2em;
  line-height: 0.5em;
  padding: 0.3em 0.3em;
  float: right;
}

.btn-add.active{
  background: #6664ff;
  border-color: #6664ff;
  pointer-events: visible;
}

.btn-add.active:hover{
  background: #4442f6;
  border-color: #4442f6;
}

.btn-add:active{
  transform: scale(0.95);
}
.control-buttons{
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  text-align: center;
}
.btn-secondary{
  display: inline-block;
  position: relative;
  border: 0;
  padding: 0;
  margin: 0 10px;
}

.btn-secondary:after{
  position: absolute;
  content: '';
  width: 0;
  height: 3px;
  background-color: #f4586e;
  bottom: 0px;
  left: 0;
  transition: all ease-in 0.25s;
}

.btn-secondary:hover:after{
  width: 100%;
}


ul.todo-list{
  padding: 0;
  margin-bottom: 30px;
}

ul.todo-list li{
  position: relative;
  list-style-type: none;
  display: block;
  margin: 10px 0;
  background: #e0e8f5;
  border-radius: 3px;
  padding-left: 38px; /* custom checkbox width + 16 */
  padding-top: 12px;
  padding-bottom: 12px;
  padding-right: 49px; /* delete button + 5 */ 
  overflow: hidden;
}

ul.todo-list.archived li{
  background: #fff;
}

.todo-text{
  position: relative;
  display: inline-block;
  padding: 0 0.5em;
}


ul.todo-list li .delete{
  position: absolute;
  height: 100%;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  cursor: pointer;
  opacity: 0;
  width: 0;
  background-color: #f56468;
  color: #fff;
  transition: all ease-in 0.25s;
}

ul.todo-list li .delete:after{
  position: absolute;
  content: '';
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  background-image: url('https://nourabusoud.github.io/vue-todo-list/images/trash.svg');
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  transform: translate(-50%, -50%) scale(0.5);
  transition: all ease-in 0.25s;
}

ul.todo-list li:hover .delete{
  width: 44px;
  opacity: 1;
}

ul.todo-list li:hover .delete:after{
  transform: translate(-50%, -50%) scale(1);
}
  
.todo-checkbox{
  position: absolute; 
  opacity: 0;
  display: none;
}

.todo-checkbox + label {
  position: absolute;
  cursor: pointer;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  border-radius: 2px;
  border: 1px solid #cfdcec;
  background-color: #fff;
}

.todo-checkbox:checked + label:after{
  position: absolute;
  content: '';
  top: 30%;
  left: 50%;
  height: 3px;
  width: 6px;
  border: solid #fc6c48;
  border-width: 0 0 2px 2px;
  transform-origin: center center;
  transform: rotate(-45deg) translate(-50%, -50%);
}

.todo-checkbox:checked + label:after{
  display: block;
}

.todo-checkbox:checked ~ .todo-text{
  color: #888;
  text-decoration: line-through
}

.status.free{
  font-weight: bold;
  text-align: center;
  margin: 40px 0;
}
.status.free img{
  display: block;
  width: 50px;
  margin: 10px auto;
  vertical-align: middle;
}

.todo-item-enter-active, .todo-item-leave-active {
  transition: opacity ease 0.25s, transform ease-in-out 0.3s;
  transform-origin: left center;
}

/* .todo-item-leave-active below version 2.1.8 */
.todo-item-enter, .todo-item-leave-to {
  opacity: 0;
  transform: translateX(100%);
}

 
.slide-fade-enter-active, .slide-fade-leave-active {
  transition: all 0.3s ease;
}
/* .slide-fade-leave-active below version 2.1.8 */
.slide-fade-enter, .slide-fade-leave-to {  
  transform: scale(1.1);
  opacity: 0;
}


/* Footer */
footer{  
  position: absolute;
  width: 100%;
  text-align: center;
  color: #fff;
  bottom: 20px;
  left: 0;
}

footer a{
  color: #fff;
}

todo-list-in-vue-js-with-localstorage.markdown

todo list in Vue.js with LocalStorage

A simple todo list built with Vue.js 2.0 that saves your todo items in the LocalStorage.

You can visit it here to actually use it: https://nourabusoud.github.io/vue-todo-list/

A Pen by Harun on CodePen.

License.