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VUE.JS组件化开发实践

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VUE.JSʵ Ծ֧ǵĹҵ 1Ԫ 10Ԫ 50Ԫ ֤룺     ֪ Ŀ Lib Ƶ Code iProcess γ ֤ ѯ   ɳ֮·   Ա          Ҫ      ÿ15ƪ ı ׷                 VUE.JSʵ   69     ۣ     2018-9-25   ༭Ƽ: Ը˲ͣͨVue APIݣdzES6Vueصݺmvvm˼롣 ǰ ˾ĿǰһH5رһͳһṹĻҪһظӡӵһģĻϵͳ󣬱һµݡȻʹVueпһЩǰҪļм򵥽ܡ һӾôʵ֣ѡȻΪ˵һ⡣ĿǰwebǰmvvmԼʽУջãvue + vuex + es6 + browserify ȼ˵webǰʽ̣ ṹṹ£ - lib/components/calendar |- calendar.css |- calendar.js |- calendar.html ͬܵļŵͬһĿ¼£ṹְȷͼʽűĹϵҲڵԪԣǶչʾͽСԪ ֮ǰ϶ڵļӹ(ʼȡԴȾ¡ٵ)˳ĸ׶Σڶʵ(ӳʼ)⡣ҽ׶εĹӿԶиõúչⱩ¶ӿڣݰ󶨻˵ݲֿļ룬xMDģij֣Ҳֿʽһ㼶ExtJsYUIȶⷽרҡ ٺ ֮ǰչǺܴģȻĿɸ(ʽ߼ԡɸõȶҵ߼)ͨšȫ״̬ܷиõĴ֯ʽȻ⡣AngularReactPolymerVuemvvmܺwebpackbrowserifyȹԤ빤ߵijͼЩ⡣ ES6 ʽʼvue֮ǰΪĿões6ô̸̸ҶעEcmaScript6ľͲ˵ˣes6˶Ŀ࣬2015°궨壬ʽƣEcmaScript2015ÿտʼӴes6Ӧöôһ⣬es6ijֵΪʲô˵ʲôϰ汾es4/5ȻӶ࣬Brendan Eichjsһ"֮ԭԭ֮"DzҲȥɣ侫裬һ·߹ ֱһ㣬es6õУclass֧֡ͷĽ⹹Ĭϲϲletconstؼ֡for ofַģ塢ǿͬдģ黯import/exportmappromise* yeildȡ õļ˵£ class: ûclassʱ򣬴һֱȽϱ׼ķʽǽǺԷŵ캯ԭӡļ̳еʵ־͸Ϊð䡢call/applyʽԭʽȡes6classextendsؼֵijָһͳһĹ淶 matriculation People { constructor (name, age, gender){ this.name = name } sayName (){ return this.name } } matriculation Student extends People { constructor (name, age, gender, skill){ super(name, age, gender) this.skill = skill } saySkill (){ return this.skill } } let tom = new Student('tom', 16, 'male', 'computer') tom.sayName() // => 'tom' tom.saySkill() // => 'computer' tom.__proto__ == Student.prototype // => true Student.__proto__ == People // => true ԿȻµĹ淶ǻjsԭ򣺶__proto__ָĹ캯()prototypees6__proto__עҲܿٵʵּ̳С ڴVueУDzԼдclassΪVueǸ߶ȷװģֻҪײclassǵö󼴿ɣ˽es6classҲбҪġVuereact˵һͬĵط let es6֮ǰjsֻкletij˿鼶ҲifelseforҲ򣬿letıǷʲģjsԤʱDzᱻǰǰġڸԣforʱÿεһ鼶ĶĵĽڴĽ var arr = []; for (let i = 0; i < 10; i ++){ arr[i] = function (){ return i } } arr[6]() // => 6 //vari۶ٴεiʼձÿεĺڲ(հ)ᱻգĽָͬһiֵΪ10 //Ϊ˱⣬ͨô for (var i = 0; i < 10; i ++){ arr[i] = (function (i){ return function (){ return i } })(i) } 󽲽ͷ es6֮ǰfunctionһص㣺ڲIJɸúдģ˭þģ˭úڲthisָ˭ȻЩʱ򲢲û취ֻͨȱthiscall/applybindġͷijֽ˿յ⣬Ϊͷڵ(this)ɺдľģ۱ĸãĶı䡣 // window var obj = { test1 : function (){ window.setTimeout(function (){ console.info(this) }, 100) }, test2 : function (){ window.setTimeout(() => { console.info(this) }, 100) }, test3: () => console.info(this), test4: function (){ console.info(this) }, test5 (){ // ǿд console.info(this); } } obj.test1() // => Window {} obj.test2() // => obj {} obj.test3() // => Window {} obj.test4() // => obj {} obj.test5() // => obj {} ͷthisֵϸϸƷζĿǰVueReactӦá ͨǼͷǾԣͷҲȫͨҪĸɾ߼ǰҪ˽ǵ ͷһصܹreturnд var a = function (n){ return n } var b = (n) => n //ʡreturnͻ var c = n => n //ֻһҲʡ a(1) // => 1 b(1) // => 1 c(1) // => 1 ⼸򵥵ӿԿes6˼ǣ֮ǰjsһЩѺõĵطĸƲص㡣 Vue ⣬ Vue.js /vju?/, viewһ web Ŀ⡣Vue.js Ŀܼͨ򵥵 API ʵӦݰ󶨺ϵͼ Vue.js һȫܿܡֻ۽ͼ㡣dzѧϰdzĿϡһ棬عߺֿ֧һʹʱVue.js ҲӵĵҳӦá йvueĴ󲿷vueĹٷĵлߵĹ Ӧݰ󶨣 <div id="app"> <p>{{ message }}</p> <input v-model="message"> </div> new Vue({ el : '#app', data : { message : 'Hello Vue.js!' } }) ıֵ<p>ǩıҲӦı䡣 ԭ<input>ֵvueʵmessageԽ˰󶨣<p>ǩıҲmessageԽ˰󶨡ֵı仯ımessageֵmessageֵı仯ᷴӦ<p>ǩıϡ Vue.js ĺһӦݰϵͳ DOM ͬdz򵥡ʹ jQuery ֹ DOM ʱǵĴ볣ʽġظ״ġVue.js ӵͼͨ׵ؽζͨ HTML ģʹ﷨ DOM 󶨡ײݡһ˰󶨣DOM ݱͬÿ޸ݣDOM Ӧظ¡Ӧе߼ͼֱ޸ˣ DOM ½һǵĴ׫дά ϵͳ ϵͳ Vue.js һҪΪṩһֳǿöɸõСӦáǿǵ㣬͵ӦõĽ涼ԳΪһ ʵϣһ͵ Vue.js ĴӦýγһ Ѿע⵽ Vue.js dzԶԪء Web 淶һ֡ʵ Vue.js ﷨ο˸ù淶 Vue ʵ Slot API is ԡǣмؼIJͬ Web 淶ȻԶδɣûʵ֮֡£Vue.js Ҫκβֵ֧IE9 ߰汾֮±һ¡ҪʱVue.js ҲԷԭԶԪ֮ڡ Vue.js ṩԭԶԪ߱һЩҪܣԶ¼ϵͳԼ̬ġЧ滻 ϵͳ Vue.js ӦõĻ⣬Vue.js ̬ϵͳҲṩ˸߼ֿ֧⣬Ǻ Vue.js һ𹹳һӡܡԵϵͳ 򵥽vueҲҪ飺Ӧʽԭϵͳ Ӧʽԭ Vue.jsݹ۲ʵԭAngularűʵIJͬ˽AngularĶ߿֪Angularݹ۲õ飨dirty checkingơÿһָһӦ۲ݵĶ󣬽watcherһлкܶwatcherÿҪʱAngularǰwatcherһһֵȻ֮ǰľֵбȽϡֵĽ仯ˣʹӦĸ£̽digest cycle ⣺ 1.κݱ䶯ζŵǰÿһwatcherҪֵ˵watcherӴʱӦõܾͲɱܵӰ죬ҺŻ 2.ݱ䶯ʱܲ⵽仯ķҪֶdigest cycleܴӦDOM ¡AngularͨDOM¼Զdigest cycleֹ⣬кܶҪûֶд Vue.jsõǻռĹ۲ơԭ˵MVVMKnockoutһġռĻԭǣ 1.ԭݸ ɹ۲󡱡һɹ۲ԱȡֵҲԱֵ 2.watcherֵУÿһȡֵĿɹ۲󶼻ὫǰwatcherעΪԼһߣΪǰwatcherһ 3.һĿɹ۲󱻸ֵʱ֪ͨжԼwatcherֵӦĸ¡ 4.ռŵڿԾȷ׷ݵı仯ᵽ⡣ͳռʵ֣KnockoutͨҪԭɹ۲ȡֵ͸ֵʱҪúõʽڽݲʱдֱۣͬʱԸǶ׽ṹĶ֧Ҳ롣 Vue.jsES5Object.definePropertyֱӽԭݶԸΪgettersetter(ES5ԣҪjs֧֣޷ִͨshimʵ֣ڵbabel pollyfill͸shimûġҲΪʲôVue֧IE8°汾ԭΪIE8definePropertyֻ֧DOM󣬴Objectᱨ)ڲʵռʹ֧Ƕ׵Ķṹ飬ͨĿɱ䷽pushı仯ʹòVue.jsݺͲԭ󼸺ûв[ע:/ɾԣ޸ضλԪʱҪضĺobj.$add(key, value)ܴ¡ES5ޡڲݵʱһҪע㣬޷ʵӦ 仯⣺ ES5 ƣVue.js ܼ⵽ԵӻɾΪ Vue.js ڳʼʵʱתΪ getter/setterԱ data ϲ Vue.js תӦġ磺 var data = {a : 1} var vm = new Vue({ data : data }) //vm.a data.a Ӧ vm.b = 2 //vm.b Ӧ data.b = 2 //data.b Ӧ а취ʵ֮ԲӦġ Vue ʵʹ $set(key, value) ʵ vm.$set('b', 2) //vm.b data.b Ӧ ͨݶ󣬿ʹȫַ Vue.set(object, key, value) Vue.set(data, 'c', 3) //vm.c data.c Ӧ ʱжһЩԣʹ Object.assign() _.extend() ԡǣӵϵԲᴥ¡ʱԴһµĶ󣬰ԭԺµԣ // ʹ Object.assign(this.someObject, {a : 1,b : 2}) this.someObject = Object.assign({}, this.someObject, {a : 1, b : 2}) Եİأ Ӧע⵽ Vue.js ļԲǼ򵥵 getterԳ׷ӦڼһʱVue.js бֻеһ˱仯ĽЧˣֻҪ仯ʼԻֱӷػĽǵ getter ΪʲôҪأһߺļ AҪһ鲢ļ㡣Ȼ󣬿ļ Aûл棬ǽ A getter ΣҪ ڼԱˣڷʱ getter DZá var vm = new Vue({ data : { msg : 'hi' }, computed : { example : function (){ return Date.now() + this.msg } } }) example ֻһ vm.msg Date.now() ӦΪ Vue ݹ۲ϵͳ޹ءڷ vm.example ʱʱ䣬 vm.msg ˡ ʱϣ getter ıԭеΪÿη vm.example ʱ getterʱΪָļԹرջ棺 computed : { example : { enshroud : false, get : function (){ return Date.now() + this.msg } } } ÿη vm.example ʱʱµġǣֻ JavaScript зģݰġģ󶨼 {{example}} ֻӦ仯ʱŸDOM ϵͳ Component Vue.js ǿĹ֮һչ HTML ԪأװõĴ롣ڽϸ߲ϣԶԪأVue.js ıΪ⹦ܡЩ£Ҳԭ HTML Ԫصʽ is չ 1.ע Vue.extend() һ var MyComponent = Vue.extend({ template : '<div>A custom component!</div>' }) ҪҪ Vue.component(tag, constructor) ע(עȫֵ) //ȫעtag Ϊ my-component Vue.component('my-component', MyComponent) ע֮󣬱ڸʵģԶԪ <my-component> ʽʹáҪȷڳʼʵ֮ǰע <div id="example"> <my-component></my-component> </div> ȾΪ <div id="example"> <div>A custom component!</div> </div> Ȼֻڣʵѡ components עᣬ磺 var Child = Vue.extend({ /* ... */ }) var Parent = Vue.extend({ template : '...', components : { // <my-component> ֻڸģ 'my-component': Child } }) ־ֲעķʽҲԴָ͹ɡǶ֧ȫֺ;ֲעᡣ ǰᵽǿԱõģʵܻṲһôעһѡ⣺ Vue ĶѡҲ Vue.extend() У data elǼ򵥵ذһΪ data ѡ Vue.extend() var data = {a : 1} var MyComponent = Vue.extend({ data : data }) ô MyComponent еʵͬһ data ΪôݵģҪģӦʹһΪ data ѡһ¶ var MyComponent = Vue.extend({ data : function (){ return {a : 1} } }) ͬel ѡ Vue.extend() ʱҲһ 2.ʹprops һڲһʱʵǹģζŲܲҲӦģֱøݡʱʹpropsݴ prop ݵһֶΣӸҪʽ props ѡ props Vue.component('child', { //camelCase in JavaScript props : ['myMessage'], template : '<span>{{ myMessage }}</span>' }) Ȼһַͨ <child my-message="hello!"></child> Ⱦ ϰߣעcamelCasekebab-caseHTML ԲִСдʽΪ camelCase prop ʱҪתΪ kebab-case(̺߸) vueӦԣpropsҲǶ̬ģ v-bind HTML ԵһʽҲ v-bind 󶨶̬ Props ݡÿݱ仯ʱҲᴫ <div> <input v-model="parentMsg"> <br/> <child v-bind:my-message="parentMsg"></child> </div> Ҳʹv-bindд﷨򻯰󶨣 <child :my-message="parentMsg"></child> Ⱦ ıֵıŸı propsܣο props 3.ͨ this.$parent ĸʵĺ this.$root һ this.$children еԪء ܿԷʸʵӦֱݣʽʹ props ݡ⣬޸ĸ״̬ǷdzΪ øܵϣ ֻ⸸״̬Ϊܱ޸ģ£ֻԼ޸״̬ Vue ʵʵһԶ¼ӿڣͨš¼ϵͳԭ DOM ¼÷Ҳͬ ÿ Vue ʵһ¼ ʹ $on() ¼ ʹ $emit() 津¼ ʹ $dispatch() ɷ¼¼Ÿðݣ ʹ $broadcast() 㲥¼¼´еĺ ͬ DOM ¼Vue ¼ðݹеһδص֮Զֹͣðݣǻصȷ true һ򵥵ӣ <!-- ģ --> <template id="child-template"> <input v-model="msg"> <button v-on:click="notify">Dispatch Event</button> </template> <!-- ģ --> <div id="events-example"> <p>Messages: {{ messages | json }}</p> <child></child> </div> ֵԺ󣬵ťMessages:[]ıӦ仯 4.˵˵̬ ʹͬһص㣬Ȼ̬֮лʹñ <component> Ԫأ̬ذ󶨵 is ԣ new Vue({ el : 'body', data : { currentView : 'home' }, components : { home : { /* ... */ }, posts : { /* ... */ }, gazetteer : { /* ... */ } } }) <component :is="currentView"> <!-- vm.currentview 仯ʱı --> </component> лȥڴУԱ״̬ȾΪ˿һ keep-alive ָ <component :is="currentView" keep-alive> <!-- ǻ --> </component> ̬ϸܣο̬ ڴӦõʱ򣬶̬Եòôˣʱʹ·ɣvue-router·չԿǶ̬棬ɲοvue-router 5.ʵڣ Vue ʵڴʱһϵгʼ衪磬Ҫݹ۲죬ģ壬Ҫݰ󶨡ڴ˹УҲһЩڹӣԶ߼ṩлᡣ created ʵã var vm = new Vue({ data : { a : 1 }, created : function (){ // this ָ vm ʵ console.log('a is: ' + this.a) } }) // => "a is: 1" ҲһЩĹӣʵڵIJͬ׶εã compiled ready destroyedӵ this ָ Vue ʵһЩûܻ Vue.js ǷСĸǣûСԶ߼ԷָЩС ڵͼʾ ļ򵥽ܾ͵ Vuex ڴӦУ״̬øӣΪ״̬ɢڣڲͬڡvue˵ʹvue-routerԼ(.vue)͵ҳӦõʱ֮״̬ݵĴݻѣȻpropsdispatchbroadcastܹпݴݣǴʹǻʹ֮ϳ̶ȺܸߣԽ࣬㼶Խ࣬άԽӡôأܷȫṩһ״̬ܣ һFlux FluxFacebookû˵webӦõӦóϵܹͨݵĵΪReactĿɸõͼṩ˲䡣ʽĿһܹ˼룬Ҫ̫µĴͿʹFluxӦá FluxӦҪ֣dispatcherstoreviewsReact componentsǧҪMVC(model-View-Controller)졣ControllerFluxӦҲȷʵڣcontroller-viewʽviewͨӦõĶ㣬storesлȡݣͬʱЩݴݸĺڵ㡣⣬action creators - dispatcher - һṩӦпܴڵĸı廯APIΪFlux±ջĵĸɲֿ԰õ һ仰FluxֶActionײͼе¼ֶ󶨵ݶܹ ĿģκUIֱӶдǷֹͬһжطͬʱдֱӽ˫󶨣΢Ḵһ㣬Ŵάıݡ Flux ܹ React ӦУĺҲ Vue.js Ӧá Vuex һ FluxרΪ Vue.js Ƶ״̬React ̬Ȧе Flux ʵ Redux Ҳͨ򵥵İ󶨺 Vue һʹá ʲôVuex Vuex һרΪ Vue.js ӦƵļʽ״̬ܹ Flux Redux ˼룬˸ҲһΪܸ÷ Vue.js ӦƶרƵʵ֡ ΪʲôҪ Ӧûܼ򵥵ʱ벢Ҫ VuexҲʹ VuexڹһϹģ SPAпѾҪ˼Ӧθõع Vue ֮⣬Ӧõɲ֡ Vuex Ҫֵʱ̡ ڵʹ Vue.js ʱͨ״̬ڲҲ˵ÿһӵеǰӦ״̬һ֣Ӧõ״̬ǷɢڸġȻǾҪ״̬һֹһĽΪʹöƵ¼ϵͳһһЩ״̬͡Сģʽڣе¼ܿ÷dzӣҵʱȥҳĴˡ Ϊ˸õĽڴӦ״̬Ĺ⣬Ҫ ״̬(component local state) Ӧò㼶״̬(application level state) ֡Ӧü״̬κضÿһȻԼ(Observe)仯ӶӦʽظ DOMͨӦõ״̬һǾͲص¼Ϊκǣһ߼Ӧд⣬ҲǸ׵ؼ¼۲״̬ıMutationԭΪͻ䣩ʵֳʱһĵЧעʱһ vue-devtools ˣ Vuex Ҳιص״̬һЩԼԱ㹻ʵʹóԡ һҪ VuexôôⲢһҪĿʹǵĿһƽ̨ϵͳһ޷бתִ䣬ͬбҳ桢ͬҳ֮ûʲô໥Ҫ״̬ҲijһҪȡҳ״̬ʱDzҪVuexģʹֻĿĸӶȡ潫ܵĻϵͳ󴴽ʱҪȡݣʱʹVuexԵʮбҪ㶼֪ǷҪVuexǾͲ 򵥵store Vuex store Ĺ൱ֱ˵ - ֻҪṩһʼ state ԼһЩ mutations import Vuex from 'vuex' const state = { count : 0 } const mutations = { INCREMENT (state){ state.count ++ } } export default new Vuex.Store({ state, mutations }) ڣͨ store.state ȡ state 󣬻ͨ stimulation ij mutation Щ״̬ store.dispatch('INCREMENT') console.log(store.state.count) // -> 1 ڶķַʽ﷨ // Чͬ store.dispatch({ type : 'INCREMENT' }) ٴǿַͨ mutation ķʽֱӸı store.state ΪҪȷ׷ٵ״̬ı仯򵥵ԼܹͼԣĶʱܸ׵ؽӦڲ״̬ı䡣⣬ҲлȥʵһЩܼ¼ÿ״̬ı䣬״̬յĵԹߡʵʱ䴩ĵ顣 Vuex ʹ һ״̬ ǵģһͰȫӦò㼶״̬ΪһΨһԴ(SSOT)ڡҲζţÿӦýһ store ʵ״ֱ̬ܹӵضλһض״̬ƬΣڵԵĹҲ׵ȡǰӦ״̬Ŀա ֻһչʾ store ʲôһӡ̸̸ĸState״̬Mutations Actions StateGetters 1.װ Vuex ҽĸ store ʵ import Vue from 'vue' import Vuex from 'vuex' import store from './store' import MyComponent from './MyComponent' // ؼ㣬 Vue δ Vuex صѡ Vue.use(Vuex) var app = new Vue({ el : '#app', store, // store ṩ store ѡ԰ store ʵעе components : { MyComponent } }) ͨڸʵע store ѡ store ʵע뵽µУͨ this.$store ʵʵϣǼҪֱ 2.Уͨ vuex.getters ѡﶨ getter ȡ״̬ // MyComponent.js export default { template : '...', data (){ ... }, // ˴ΪǴ store ʵȡ״̬λ vuex : { getters : { // getter Ѳֿ `store.state.count` Ϊ `this.count` count : (state) => state.count } } } vuex ѡעgetters Ӷ󣩡ָǰܴ store ȡЩ״̬ϢĵطÿӦһ getter ú store ״̬ΪΨһ֮ȿԷ״̬һ֣ҲԷش״̬ȡļֵؽ getter ӵϣ÷ļһëһ ֱ޸storeʵ״̬ ʼռǵ÷dzҪ㣬ǣԶӦֱӸı Vuex store ״̬ΪҪ״̬ÿθı䶼ȷҿ׷٣Vuex ״̬иı䶼 store mutation handler () йΪǿùڿ(ϸģʽ(Strict Mode))ʱ store ״̬ mutation ⱻ޸ģVuex ͻᱨһ Vue ְܾ˺ֻࣺܶͨ getter Vuex store ״̬󶨣ΨһӰȫ״̬ķ취 mutationsǽ̸бҪȻܹͲ״̬Dzڵзκȫ״̬߼Щȫ Vuex صļУôӦñøά Mutation Mutations һ¼ϵͳÿ mutation һ ¼ (name) һ ص (handler). κһ Mutation handler ĵһԶΪ store state import Vuex from 'vuex' const store = new Vuex.Store({ state : { count : 1 }, mutations : { INCREMENT (state){ // ı state state.count ++ } } }) ȫд mutation һ㽫 deportment ֿ 㲻ֱӵ mutation handler. ﴫ Store 캯ѡע¼صINCREMENT ¼ʱ handler mutation handler ķ stimulation һ mutation ¼ store.dispatch('INCREMENT') Mutationͬ Ϊ mutation ʱ򣬻صûбãDz֪ʲôʱصʵϱáκڻصнеĵ״̬ĸı䶼Dz׷ٵġ MutationVueӦϵͳ 1.ڴ store ʱͳʼ state Ҫԡ 2.һԭڵʱҪʹ Vue.set(obj, 'newProp', 123) ߿滻ԭĶ stage 2 object spread syntaxǿʹ﷨: state.obj = {...state.obj, newProp : 123}DeportmentActions ڷַ mutations ĺչVuex deportment ĵһ store ʵϿѡԶ // 򵥵 whoopee function increment (store){ store.dispatch('INCREMENT') } // Ӳ whoopee // ʹ ES2015 ⹹ function incrementBy ({dispatch}, amount){ dispatch('INCREMENT', amount) } էһۿȥоһ٣ֱӷַ mutations 񲻸㣿ʵϲˣǵ mutations ִͬôActions ͲԼǿ whoopee ڲִ첽ִһajaxݵIJ function getData ({dispatch}){ ajax ({ url : "...", data : {...}, success : (data) => { dispatch("SET_DATA", data) } }) } ǿеactions // ijڲ // actions import {incrementBy} from './actions' const vm = new Vue({ vuex : { getters : { ... }, // state getters deportment : { incrementBy } } }) ľǰԭ incrementBy whoopee 󶨵 store ʵУ¶һ vm.increamentBy ʵдݸ vm.increamentBy IJ store Ȼһ𴫵ݸԭ whoopee Ե vm.incrementBy(1) ȼ incrementBy(vm.$store, 1) ȻдһЩ룬ģе whoopee ʡˣ <button v-on:click="incrementBy(1)">increment by one</button> ͨڴ App Уaction ӦðͬĿĽ / ģ黯 ĹοDeportment̸̸һҪĶ Ϊ˸õ Vuex app еһ򵥵ļ appע⣺ӽΪ˸õؽ͸ʵвҪּ򵥵ijʹ Vuex. // store.js import Vue from 'vue' import Vuex from 'vuex' Vue.use(Vuex) // Ӧóʼ״̬ const state = { count : 0 } // mutations const mutations = { INCREMENT (state){ state.count ++ }, DECREMENT (state){ state.count -- } } // store ʵ export default new Vuex.Store({ state, mutations }) // actions.js export const increment = ({ stimulation }) => dispatch('INCREMENT') export const decrement = ({ stimulation }) => dispatch('DECREMENT') <!- temmplate --> <div> Clicked: {{ count }} times <button v-on:click="increment">+</button> <button v-on:click="decrement">-</button> </div> // Ҫڸע store ʵһμ import store from './store' import {increment, decrement} from './actions' const app = new Vue({ el : '#app', store, vuex : { getters: { count: state => state.count }, actions: { increment, decrement } } }) ע⵽dz򵥣Ľǰ󶨵 stateȻûʱ actions ҲᷢӦõǵģ Flux 1.ûе whoopee á 2.Actions ַͨ mutations ޸ store ʵ״̬ 3.Store ʵ״̬仯ͨ getters ֪ Vuex ǿҪе״̬ Vuex store Щ״̬òûҪ仯׷٣ôȫ԰ Vuex (Ϊı״̬)繫ĽӿڣͨpropsݸΪЧ VuexοVuex vue-devtools vue-devtoolschromeһvuechrome̵crxչаװṩComponentsVuexԤ(state仯ٵ)ܣڿ͵ԡ Կpropԡԡvue getterԵȣԼVuexеĴmutationstate ǰֵǿܹעݶֱ۵չʾ˳ Vueģ黯 ڴĿΪ˸õعʹģ鹹ϵͳdzҪƼʹ CommonJS ES6 ģ飬Ȼʹ Webpack Browserify Webpack Browserify ֻģ߶ṩԴת APIͨԤתԴ롣磬 babel-loader babelify ʹ ES2015/2016 ﷨ ʹ Webpack + vue-loader Browserify + vueify Щļ Vue ѡֹȡľWebpack Ĺܸǿָ̬Դģ飬ȡ CSS һļȣԸһ㡣㲻Ҫ Webpack Щܣʹ Browserify 򵥣ĹʽʹùٷƷĽּܹ vue-cliοvue-cli ģϵͳ ϵͳֻǶԻģҪչʾݽƣʽͽɻh5ҳӾͽᡣÿһԳΪһh5չʾõÿ϶Ӧʽͽ߼վγһh5ҳ档 ÿһӦģʽ 1.ǩͨ϶Ӧ͵ 2.Ԥչʾǰ 3.༭༭ǰѡеĸ ɺģһ򵥵ĽڱΪ ͼʾЩıǩҪǩԤ󣬻ɶӦԤͱ༭Ԥ༭ʾӦı༭ڱ༭пԶб༭༭ɺͨȵݰ󶨣ԤӦͻͼʾǰݡ Ͼϵͳһŷ̸̸ʵ֡ ȣӱǩʼ ǩÿĿˣҲ˵ÿһǩһʶһǾȸָ type ڱ type 'sectionTitle' ͶƱ type 'vote' type 'content' û type 'user' ͼƬ type 'image' Ƶ type 'video' Ƶ type 'audio' ת type 'link' Ȼÿ϶һǩԤٸݸñǩtypeɶӦԤͱ༭Ԥͱ༭Ҫȷ޷ǾЩ༭Щ༭ʲôݡԽڱΪֻһ༭ڱıҲ˵ڱԤʾڱı༭ҪһıԽڱıб༭ģȰ󶨺öӦݣıݱ仯ᷴӦԤDOMϡ Ҫһ()ʹһ顣 ҸϲһǶԭvueĻ(pushspliceshift)˷װͨЩıݣӦġڱӦ£ıҪ鷳ЩرǸӵǶ׶ʹöͨidֱƥ䵽ӦݣͨҪһ¡es6for of뻹Ǻܼ򵥣ҲڲDOMӰ첻 //widgetData.js [ {id : "100",type : "vote", ...}, //ͶƱ {id : "101",type : "image", ...}, //ͼƬ {id : "102",type : "video", ...}, //Ƶ ] ÿݶidΨһģǩʱɵģidǹԤӦ༭ĹؼͨҵÿԤӦı༭ΪʲôͨtypeжأΪÿжͬڱ⡣ͨtypeûȷӦϵ ͨVuexһstore洢޸(ٷ˵ǹstate״̬)ᵽVuexUIֱ޸ݡڱ༭ıijֱֵӸı˶ӦһֵͨDOM¼ӦactionactionɷӦmutaion޸stateַʽȷжijݵ޸Ķͨijһactionɵģactionǽij޸ĵͳһΨһڡ ֪ҪʲôԤͱ༭ʱ򣬲ŽʱǾͱ֪Щ༭(⣬ǷݶҪЩ)ʱǾҪһmaptype༭ĹϵԻͶƱΪ ͶƱҪ±༭ 1.ͶƱı 2.ͶƱÿҪһƣÿܻ(ȷѡıǵ) //typeDataMap.js export default { vote : { type : "vote", title : "ͶƱı", items : [ {name : "ͶƱ1"}, //ÿͶƱ {name : "ͶƱ2"}, {name : "ͶƱ3"} ] } } ֻҪ֪ʲôͣͨ typeData[type] ܻȡݲˡԤͱ༭ģͼȶDOMݰ󶨣Ǹıijʱ¾ͻᷴӦDOMϡDZģʱֻҪȡеֵˣʵҲǸ鱾H5չʾͨ飬õԼ򣬰նõģȾɡȻͶƱнݵϵͳƵģֻȷҪչʾĹ̶ݡͶƱÿͶƱҪ˴뵽Ӧ棬չʾʾ ϵͳŵ˼ģЩ ǩ Ϊǩıֺͽ߼ȶһµģһɸõıǩtitle(ǩı)type(ǩ)ڱǩһбǩݶ飬ģͼб飬ʹеıǩ ǩͳһԺͷȴһ棬ԺͨmixinʽϣͻӵЩԺͷĿǰ岻ΪѾһıǩˣmixinĶȫֱдڡÿ͵ıǩһ.vueļmixinĺôֳˣɸáά ʵֵĴ룬ʡԵʽ //labelWrapper.vue ǩ(ǩ) <template> <div class="label-wrapper"> <div class="label-title">ǩ</div> <div class="label-box"> <common-label v-for="label in labelArr" :title="label.title" :type="label.type"></common-label> </div> </div> </template> <script> import commonLabel from './widget/commonLabel.vue' //빫ǩ export default { name : "label_wrapper", components : { commonLabel //עΪ(es6ͬд) }, data (){ return { labelArr : [ {title : "ڱ", type : "sectionTitle"}, {title : "ͶƱ", type : "vote"}, {title : "", type : "content"}, {title : "û", type : "user"}, {title : "ͼƬ", type : "image"}, {title : "Ƶ", type : "video"}, {title : "Ƶ", type : "audio"}, {title : "ת", type : "link"} ] } } } </script> <style lang="stylus"> /*...*/ </style> //commonLabel.vue ǩ <template> <div class="label-item-wrapper" title="ģ" draggable="true" @dragstart="dragStart"> <img class="label-icon" alt="{{title}}" :src="iconUrl"> <span class="label-text">{{title}}</span> </div> </template> <script> //mixin import labelMixin from './mixin/labelMixin' export default { name : "label", props : { title : String, type : String }, mixins : [labelMixin], computed : { iconUrl (){ return this.type + '.png' } } } </script> <style lang="stylus"> /*...*/ </style> //labelMixin.js import typeDataMap from './typeDataMap' export default { methods : { dragStart (e){ var id = parseInt(Date.now() + "" + parseInt(Math.random() * 90)) var widgetData = typeDataMap[this.type] var dt = e.dataTransfer widgetData['id'] = id dt.setData("id", id) dt.setData("type", this.type) dt.setData("widgetData", JSON.stringify(widgetData)) } } } Ԥ ԤԽϼ򵥣ݵİ󶨣϶϶ʵͨhtml5ԭdrag¼vueԭ϶ʱ򲢲ҪȥֶıԤڸDOM˳ֻҪıݶindexɣݵı仯ᷴӦDOMϡ򵥵ĽڱԤ <template> <div class="preview-item-wrapper" draggable="true" :class="{'active': isActive}" @click="showEdit" @dragover="allowDrop" @dragstart="dragStart" @drop="dropIn" > <span class="preview-item-del" :class="{'active': isActive}" title="ɾ"> <div v-on:click="delMe">x</div> </span> <label class="preview-item-label">- ڱ -</label> <div class="preview-item-input-wrapper"> <div class="title-text">{{text}}</div> </div> </div> </template> <script> //action import {addPreviewAndData, deleteWidgetPreview, changeWidgetEdit, changPreviewAndDataIndex} from '../../../store/actions' //mixin import previewMixin from './mixin/previewMixin' export default { name : "sectionTitle_preview", mixins : [previewMixin], props : { id : Number, alphabetize : Number }, computed : { //mixin˽ text (){ for (let value of this.widgetDataArr) if (value.id == this.id) return value.text } }, vuex : { //mixinҪԺͷ getters : { widgetDataArr : (state) => state.widgetDataArr, currentEditWidgetId : (state) => state.currentEditWidgetId }, deportment : { addPreviewAndData, deleteWidgetPreview, changeWidgetEdit, changPreviewAndDataIndex } } } </script> <style lang="stylus"> /*...*/ </style> /** * previewMixin.js * Ԥmixin * @ȡ֮ͬɸõļ뷽 */ export default { computed : { //ԤǷΪǰ isActive (){ return this.id == this.currentEditWidgetId } }, methods : { //ɾԤ delMe (){ this.deleteWidgetPreview(this.id) }, //ʾԤӦı༭ showEdit (){this.changeWidgetEdit(this.id) }, //ԤϷ allowDrop (e){ e.preventDefault(); }, //ʼϷŸԤ dragStart (e){ var dt = e.dataTransfer dt.setData("index", this.index) }, //ԤϷ(Ԥ߱ǩ) dropIn (e){ e.preventDefault() e.stopPropagation() var dt = e.dataTransfer var id = parseInt(dt.getData("id")) if (id){ //idDZǩ var type = dt.getData("type") var widgetData = JSON.parse(dt.getData("widgetData"))this. changeWidgetEdit(id) this.addValidation(id) //֤ } else { var alphabetize = parseInt(dt.getData("index")) this.changPreviewAndDataIndex(index, this.index) } //dataTransfer dt.clearData() } } } ༭ ԽڱΪ <template> <div class="edit-item-wrapper"> <label class="edit-item-label">ڱı</label> <validator name="titleValidator"> <div class="edit-item-input-wrapper"> <textarea class="title-edit-input" placeholder="16" v-model="text" v-validate:text="{ required: {rule: true,message: 'дڱı'}, maxlength: {rule: 16,message: 'ڱı16'} }" @input="inputValue" @valid="onValid" @invalid="onInvalid" ></textarea> <div class="edit-input-err" v-if="$titleValidator.text.required"> {{$title Validator.text.required}}</div> <div class="edit-input-err" v-if="$titleValidator.text.maxlength"> {{$title Validator.text.maxlength}}</div> </div> </validator> </div> </template> <script> //action import {changeWidgetData, changeValidation} from '../../../store/actions' //mixin import editMixin from './mixin/editMixin' export default { name : "title_edit", mixins : [editMixin], props : { id : Number }, computed : { //mixin˽ text (){ for (let value of this.widgetDataArr) if (value.id == this.id) return value.text } }, methods : { //mixin˽з inputValue (e){ this.changeWidgetData(this.id, 'text', e.target.value) } }, vuex : { getters : { widgetDataArr : (state) => state.widgetDataArr }, deportment : { changeWidgetData, changeValidation } } } </script> <style lang="stylus"> /*...*/ </style> /** * editMixin.js * ༭mixin */ export default { data (){ return { //isValid : false } }, methods : { onValid (){ //֤ͨ this.isValid = true this.changeValidation(this.id, true) }, onInvalid (){ //֤ʧ this.isValid = false this.changeValidation(this.id, false) } } } һЩԼstoreȾͲٽˣǰĽѻ͵ˡɺģ չʾ ڱ༭󣬱ûIDһݶ鵽serverݿС˾ĻH5ģH5ҳ水IDserverȡûݣе˳ȾɶӦH5ҳ档ȻH5ҲҪһʵַͳһӦԵ淶ȡ ģijǶԻݽṹĸ߶ȳټÿΪ൱reactеDOMһjavascriptάһ׳ݽṹκζõṹ԰ȾҪչʾĶreactӦģjsxĽṹڱ󱻳DOMwebDOMȾhtmlṹ(react js)ֻnativeˣDOMȾnativeṹ(react native)Ҳ˵luaˣwpf(ܵĻ)ҲӳǵṹʵҲеڷ˵DAO㣬ͳһݷʽӿڣײʲôݿлȿܻ˵Ŀش       69  :     Androidֻһ Javascript ǵajaxʵ ׵Ajax javascript ʹCookies ʹ jQuery Ajax ...    ѵγ Struts+Spring+Hibernate J2EEWeb 2.0Ӧÿ J2EEģʽܵ Java EE 5ҵܹ JavaԪԷ뼼 Java̷뼼 γ...    ɹ GE ʵѵ ƹijӹ˾ Nodejs߼Ӧÿ ʢ滪 ׿Խ߱߱ ijϢ˾ Pythonѵ ijITϵͳ Բ йʴ Գģͼ(TMMI) Ժ ƷƷ ...          ÿ2ĵ/Ƶ ɨ΢Ŷά붩 ļ¿ ÿ300Դ     | ϵ | ICP10020922 110108001071