本文主要給大家介紹了關(guān)于vue.js之UI組件開發(fā)的相關(guān)內(nèi)容,分享出來供大家參考學(xué)習(xí),下面來一起看看詳細(xì)的介紹:
1. 新建組件:
<script src="/public/javascripts/vue.js"></script><style> #app1{background-color: red} #app2{background-color: blue}</style><body><div id="app1"> <box-one></box-one> <box-two></box-two> <boxThree></boxThree></div><div id="app2"> <box-one></box-one> <box-two></box-two></div><box-one></box-one><box-two></box-two><script>Vue.component('box-one', { template: '<div class="box-one">box-one</div>'});var app1 = new Vue({ el: '#app1', components: { 'box-two': { template: '<div class="box-two">box-two</div>' }, 'boxThree': { template: '<div class="boxThree">boxThree</div>' } }});var app2 = new Vue({ el: '#app2'});</script>
Vue.component 方法用于注冊(cè)全局組件, new Vue({ components: {}}) 用于注冊(cè)某個(gè)實(shí)例內(nèi)使用的組件,所以 <box-two></box-two> 在 #app2 中失效;<boxThree></boxThree> ;2. 瀏覽器渲染網(wǎng)頁標(biāo)簽的限制:
<script src="/public/javascripts/vue.js"></script><style> .red{background-color: red} .blue{background-color: blue}</style><body><div id="app1"> <table class="red"> <box-one></box-one> </table> <select class="red"> <box-two></box-two> </select> <table class="blue"> <tr is="box-one"></tr> </table> <select class="blue"> <option is="box-two"></option> </select></div><script>Vue.component('box-one', { template: '<tr><td>box-one</td></tr>'});Vue.component('box-two', { template: '<option>option</option>'});var app1 = new Vue({ el: '#app1'});</script>
3. 組件中的 data 數(shù)據(jù)集:
<script src="/public/javascripts/vue.js"></script><body><div id="app1"> <done-button></done-button></div><script>Vue.component('done-button', { template: '<button>{{text}}</button>', data: function (){ return { text: 'ok' } }});var app1 = new Vue({ el: '#app1'});</script>
new Vue({}) 中的實(shí)例數(shù)據(jù)集,組件中的 data 數(shù)據(jù)集必須是一個(gè)函數(shù),再使用函數(shù)返回一個(gè)對(duì)象集,否則會(huì)報(bào)錯(cuò);4. 實(shí)例給組件傳值:
<script src="/public/javascripts/vue.js"></script><body><div id="app1"> <done-button text="submit" textOne="submit1" text-two="submit2"></done-button></div><script>Vue.component('done-button', { template: '<button :data-text="text" :data-text-one="textOne" :data-text-two="textTwo">{{text}}</button>', props: ['text', 'textOne', 'textTwo']});var app1 = new Vue({ el: '#app1'});</script>
5. 組件標(biāo)簽屬性使用動(dòng)態(tài)數(shù)據(jù):
<script src="/public/javascripts/vue.js"></script><style> .appNumber{background-color: red}</style><body><div id="app1"> <done-button :number="appNumber"></done-button> <button class="appNumber" @click="appNumber++">{{appNumber}}</button></div><script>Vue.component('done-button', { template: '<button @click="number++">{{number}}</button>', props: ['number']});new Vue({ el: '#app1', data: { appNumber: 0 }});</script>
6. 自定義組件屬性的值的規(guī)則:
<script src="/public/javascripts/vue.js"></script><body><div id="app1"> <done-button number1="a" number2="1" :number3="1" ></done-button></div><script>Vue.component('done-button', { template: '<button :num1="number1" :num2="number2" :num3="number3">{{number1}}</button>', props: { number1: { type: Number }, number2: { type: Number }, number3: { type: Number } }});new Vue({ el: '#app1'});</script>
{ // 屬性類型: String、Number、Boolean、Function、Object、Array,null-任意類型, // 可以使用數(shù)組多選 type: null, // 是否必須被賦值:true、false required: false, // 默認(rèn)值:可以是一般任意值或有返回值的函數(shù) default: '', // 自定義判斷函數(shù):參數(shù) value 為調(diào)用時(shí)傳入的值, // 返回 true、false 來通知 vue 機(jī)制是否報(bào)錯(cuò) validator: function(value){ return true } }7. 組件內(nèi)給實(shí)例發(fā)送通知:
<script src="/public/javascripts/vue.js"></script><body><div id="app1"> <done-button v-on:child="father" ></done-button></div><script>Vue.component('done-button', { template: '<button v-on:click="add()">增加</button>', methods: { add: function () { this.$emit('child', 11); } }});new Vue({ el: '#app1', methods: { father: function(number) { console.log('father' + number); } }});</script>
this.$emit('child', 11) 告訴實(shí)例,該調(diào)用 child 事件了,后面的參數(shù)會(huì)變成 child 的調(diào)用參數(shù)傳遞;v-on:child="father" 元素屬性,來監(jiān)聽 child 事件收到通知時(shí)應(yīng)該執(zhí)行什么處理,通過 father 的形參,可以直接訪問 child 的調(diào)用參數(shù);8. 組件之間通信:
<script src="/public/javascripts/vue.js"></script><body><div id="app1"> <done-button ></done-button> <cancel-button></cancel-button></div><script>var bus = new Vue();Vue.component('done-button', { template: '<button v-on:click="send()">發(fā)送</button>', methods: { send: function () { bus.$emit('done-emit', 11); } }});Vue.component('cancel-button', { template: '<p>{{text}}</p>', data: function (){ return { text: '00' } }, mounted: function() { var _this = this; bus.$on('done-emit', function(number) { _this.text = number; }); }});new Vue({ el: '#app1', methods: { call: function(value) { console.log('father:' + value); } }});</script>
bus.$emit 發(fā)送通知,使用 bus.$on 監(jiān)聽通知;9. 組件內(nèi)容節(jié)點(diǎn)的分發(fā):
<script src="/public/javascripts/vue.js"></script><body><div id="app1"> <box></box> <box> <h4>box1</h4> </box> <box>{{box2Text}}</box></div><script>Vue.component('box', { template: '<p><slot>默認(rèn)</slot></p>'});new Vue({ el: '#app1', data: { box2Text: 'box2' }});</script>
10. 多個(gè) <slot> 標(biāo)簽之間的使用:
<script src="/public/javascripts/vue.js"></script><body><div id="app1"> <box> <p>ppppp</p> <p slot="h4">h4</p> <h4 slot="h4">h4</h4> <p slot="h5">h5</p> <h5 slot="h5">h5</h5> </box></div></div><script>Vue.component('box', { template: [ '<div id="box">', '<div class="default">', '<slot></slot>', '</div>', '<div class="h4">', '<slot name="h4"></slot>', '</div>', '<div class="h5">', '<slot name="h5"></slot>',, '</div>', '</div>', ].join('')});new Vue({ el: '#app1'});</script>
11. <slot> 標(biāo)簽回傳數(shù)據(jù)給內(nèi)容節(jié)點(diǎn):
<script src="/public/javascripts/vue.js"></script><body><div id="app1"> <box > <template scope="props"> <span>{{props.text}}</span> </template> </box></div></div><script>Vue.component('box', { template: '<div id="box"><slot v-for="i in items" :text="i"></slot></div>', data: function (){ return { items: [0,1,2,3,4] } }});new Vue({ el: '#app1'});</script>
scope="props" 屬性,而 <template> 標(biāo)簽內(nèi)則是 props 對(duì)象的作用域上下文;props.text 訪問到 text 屬性的值; <slot name="header"> 使用,而 <template slot="header"> 即可;12. 動(dòng)態(tài)切換組件:
<script src="/public/javascripts/vue.js"></script><body><div id="app1"> <component :is="view"></component> <button @click="view = 'inlinebox'">change</button></div></div><script>Vue.component('box', { template: '<div id="box">box</div>',});Vue.component('inlinebox', { template: '<div id="inlinebox">inlinebox</div>'});new Vue({ el: '#app1', data: { view: 'box' }});</script>
13. 在實(shí)例中訪問子元素對(duì)象:
<script src="/public/javascripts/vue.js"></script><body><div id="app1"> <box ref="box1"></box></div></div><script>Vue.component('box', { template: '<div id="box">box</div>',});new Vue({ el: '#app1', mounted: function() { console.log(this.$refs); }});</script>
$refs 中訪問到組件的對(duì)象;總結(jié)
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