<template>
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<section class="todoapp">
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<!-- header -->
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<header class="header">
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<input class="new-todo" autocomplete="off" placeholder="Todo List" @keyup.enter="addTodo">
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</header>
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<!-- main section -->
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<section v-show="todos.length" class="main">
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<input id="toggle-all" :checked="allChecked" class="toggle-all" type="checkbox" @change="toggleAll({ done: !allChecked })">
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<label for="toggle-all" />
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<ul class="todo-list">
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<todo
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v-for="(todo, index) in filteredTodos"
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:key="index"
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:todo="todo"
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@toggleTodo="toggleTodo"
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@editTodo="editTodo"
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@deleteTodo="deleteTodo"
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/>
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</ul>
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</section>
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<!-- footer -->
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<footer v-show="todos.length" class="footer">
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<span class="todo-count">
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<strong>{{ remaining }}</strong>
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{{ remaining | pluralize('item') }} left
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</span>
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<ul class="filters">
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<li v-for="(val, key) in filters" :key="key">
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<a :class="{ selected: visibility === key }" @click.prevent="visibility = key">{{ key | capitalize }}</a>
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</li>
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</ul>
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<!-- <button class="clear-completed" v-show="todos.length > remaining" @click="clearCompleted">
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Clear completed
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</button> -->
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</footer>
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</section>
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</template>
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<script>
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import Todo from './Todo.vue'
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const STORAGE_KEY = 'todos'
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const filters = {
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all: todos => todos,
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active: todos => todos.filter(todo => !todo.done),
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completed: todos => todos.filter(todo => todo.done)
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}
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const defalutList = [
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{ text: 'star this repository', done: false },
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{ text: 'fork this repository', done: false },
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{ text: 'follow author', done: false },
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{ text: 'vue-element-admin', done: true },
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{ text: 'vue', done: true },
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{ text: 'element-ui', done: true },
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{ text: 'axios', done: true },
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{ text: 'webpack', done: true }
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]
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export default {
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components: { Todo },
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filters: {
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pluralize: (n, w) => n === 1 ? w : w + 's',
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capitalize: s => s.charAt(0).toUpperCase() + s.slice(1)
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},
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data() {
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return {
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visibility: 'all',
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filters,
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// todos: JSON.parse(window.localStorage.getItem(STORAGE_KEY)) || defalutList
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todos: defalutList
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}
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},
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computed: {
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allChecked() {
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return this.todos.every(todo => todo.done)
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},
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filteredTodos() {
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return filters[this.visibility](this.todos)
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},
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remaining() {
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return this.todos.filter(todo => !todo.done).length
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}
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},
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methods: {
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setLocalStorage() {
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window.localStorage.setItem(STORAGE_KEY, JSON.stringify(this.todos))
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},
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addTodo(e) {
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const text = e.target.value
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if (text.trim()) {
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this.todos.push({
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text,
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done: false
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})
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this.setLocalStorage()
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}
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e.target.value = ''
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},
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toggleTodo(val) {
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val.done = !val.done
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this.setLocalStorage()
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},
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deleteTodo(todo) {
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this.todos.splice(this.todos.indexOf(todo), 1)
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this.setLocalStorage()
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},
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editTodo({ todo, value }) {
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todo.text = value
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this.setLocalStorage()
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},
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clearCompleted() {
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this.todos = this.todos.filter(todo => !todo.done)
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this.setLocalStorage()
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},
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toggleAll({ done }) {
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this.todos.forEach(todo => {
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todo.done = done
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this.setLocalStorage()
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})
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}
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}
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}
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</script>
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<style lang="scss">
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@import './index.scss';
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</style>
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