我正在尝试使用Vue输入来记录一些简单的数据,但由于某种原因,按钮调用的方法add()
会被调用两次。
<el-steps :active="addItem.count" finish-status="success" class="form-items" style="padding-left: 0px">
<el-step title="category"></el-step>
<el-step title="subcategory"></el-step>
<el-step title="data"></el-step>
</el-steps>
<el-form ref="form" :model="addItem" label-width="120px" style="padding: 20px;">
<el-input :placeholder="placeholder" v-model="addItem.text"></el-input>
<div id="add-item-buttons">
<el-form-item class="form-items">
<el-button type="primary" @click="add">Create</el-button>
<el-button>Clear</el-button>
</el-form-item>
</div>
</el-form>
<script>
export default {
methods: {
add(){
switch(this.addItem.count){
case 1:
this.addItem.category = this.addItem.text;
console.log('category set to: ' + this.addItem.category);
this.addItem.text = '';
this.addItem.count++;
case 2:
this.addItem.subcategory = this.addItem.text;
console.log('category set to: ' + this.addItem.subcategory);
this.addItem.text = '';
this.addItem.count++;
case 3:
if (this.addItem.kks.show){
this.addItem.kks.name = this.addItem.text;
}
if (this.addItem.document.show){
this.addItem.document.name = this.addItem.text;
}
if (this.addItem.product.show){
this.addItem.product.name = this.addItem.text;
}
}
},
computed: {
placeholder: function(){
switch(this.addItem.count){
case 1:
return 'ADD A CATEGORY TO YOUR ITEM';
case 2:
return 'ADD A SUBCATEGORY TO YOUR ITEM';
case 3:
return 'GIVE YOUR ITEM A NAME';
}
},
active: function(){
return true;
}
},
data() {
return {
addItem: {
open: false,
count: 1,
category: '',
subcategory: '',
text: ''
}
}
...
</style>
这是我点击“创建”时在控制台中看到的内容:
category set to: category 1
category set to:
编辑:事实证明我做了一个拼写错误并为我的第二个开关案例写了'category set to',我的意思是'子类别'。显然,案例1和案例2都在评估,而不是案例1两次。这是修复后的新控制台日志:
category set to: category 1
(unknown) subcategory set to:
而不是切换到添加您的SUBCATEGORY,它直接进入ITEM。
有人能看出出了什么问题吗?
答案 0 :(得分:4)
您的switch case语句缺少中断。
您将计数器增加1,第二个条件匹配。只需添加休息时间就可以了。
switch(this.addItem.count){
case 1:
this.addItem.category = this.addItem.text;
console.log('category set to: ' + this.addItem.category);
this.addItem.text = '';
this.addItem.count++;
break;
case 2:
this.addItem.subcategory = this.addItem.text;
console.log('category set to: ' + this.addItem.subcategory);
this.addItem.text = '';
this.addItem.count++;
break;
case 3:
if (this.addItem.kks.show){
this.addItem.kks.name = this.addItem.text;
}
if (this.addItem.document.show){
this.addItem.document.name = this.addItem.text;
}
if (this.addItem.product.show){
this.addItem.product.name = this.addItem.text;
}
break;
}