86 lines
1.8 KiB
HTML
86 lines
1.8 KiB
HTML
<script src="https://cdn.jsdelivr.net/lodash/4.3.0/lodash.min.js"></script>
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<script src="../../dist/vue.global.js"></script>
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<div id="app">
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<button @click="insert">insert at random index</button>
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<button @click="reset">reset</button>
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<button @click="shuffle">shuffle</button>
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<transition-group tag="ul" name="fade" class="container">
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<item v-for="item in items"
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class="item"
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:msg="item"
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:key="item"
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@rm="remove(item)">
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</item>
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</transition-group>
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</div>
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<script>
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const getInitialItems = () => [1, 2, 3, 4, 5]
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let id = getInitialItems().length + 1
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const Item = {
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props: ['msg'],
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template: `<div>{{ msg }} <button @click="$emit('rm')">x</button></div>`
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}
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const App = {
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components: {
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Item
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},
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data() {
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return {
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items: getInitialItems()
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}
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},
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methods: {
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insert () {
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const i = Math.round(Math.random() * this.items.length)
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this.items.splice(i, 0, id++)
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},
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reset () {
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this.items = getInitialItems()
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},
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shuffle () {
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this.items = _.shuffle(this.items)
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},
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remove (item) {
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const i = this.items.indexOf(item)
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if (i > -1) {
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this.items.splice(i, 1)
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}
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}
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}
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}
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Vue.createApp().mount(App, '#app')
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</script>
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<style>
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.container {
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position: relative;
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padding: 0;
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}
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.item {
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width: 100%;
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height: 30px;
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background-color: #f3f3f3;
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border: 1px solid #666;
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box-sizing: border-box;
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}
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/* 1. declare transition */
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.fade-move, .fade-enter-active, .fade-leave-active {
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transition: all .5s cubic-bezier(.55,0,.1,1);
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}
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/* 2. declare enter from and leave to state */
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.fade-enter-from, .fade-leave-to {
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opacity: 0;
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transform: scaleY(0.01) translate(30px, 0);
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}
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/* 3. ensure leaving items are taken out of layout flow so that moving
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animations can be calculated correctly. */
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.fade-leave-active {
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position: absolute;
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}
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</style>
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