初识Vue,简单的todolist
Posted detanx
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vue开发源码:https://vuejs.org/js/vue.js
todolist代码:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>vue入门</title> <script src="vue.js" type="text/javascript" charset="utf-8"></script> </head> <body> <div id="app"> <input v-model="inputValue" type="text" name=""> <button @click="submit">提交</button> <ul> <todo-item v-for="(item, index) in list" :key="index" :content="item" :index="index" @delete="handleDelete" @update="handleUpdate" > </todo-item> </ul> <input v-model="updateValue" type="text" name=""> <button @click="update">确定</button> </div> </body> <script type="text/javascript"> Vue.component("todo-item", { props:["content", "index"], template:‘<li>{{content}} <button @click="handleClick">remove</button><button @click="handleUp">update</button></li>‘, methods:{ handleClick:function() { this.$emit(‘delete‘, this.index) }, handleUp:function() { this.$emit(‘update‘, this.index) } } }) new Vue({ el:"#app", data: { inputValue : ‘‘, updateValue : ‘‘, in:‘‘, list:[] }, methods: { submit:function() { if(this.inputValue.trim() !== "") { this.list.push(this.inputValue); } this.inputValue = ‘‘ }, handleDelete: function(index) { this.list.splice(index, 1); }, handleUpdate: function(index) { this.updateValue = this.list[index] this.in = index; }, update: function() { console.log(this.in) this.list.splice(this.in, 1, this.updateValue); this.updateValue = ‘‘ } } }) </script> </html>
重点:子组件与父组件的值传递
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