Hey In my Vue application I have the opportunity to create several persons:
<div v-for="newContent in temp" :key="newContent.id" @click="showId(newContent.id)" v-show="true">
<!-- Head of part personal data -->
<h4 class="person" style="margin-left: 0.95vw">Person 1</h4>
<!-- Enter Person Data -->
<testmodul1></testmodul1>
<div class="trash">
<button class="btn btn-outline-danger" @click="deletePerson()">Person löschen</button>
</div>
<hr />
</div>
If I want to add more persons, there is a button, which appends more of these person inputs:
<button class="btn btn-outline-secondary" @click="useIt()">Add more persons</button>
useIt(){
this.temp.push({
id:this.id+=1
})
console.log(this.temp);
},
data() {
return {
id:0,
temp:[{
id:0,
}]
};
},
Output of the console.log method in the console (clicked the add button 2 times):
Proxy {0: {…}, 1: {…}, 2: {…}}
[[Handler]]: Object
[[Target]]: Array(2)
0: {id: 0}
1: {id: 0}
length: 2
[[Prototype]]: Array(0)
Now the following problem: Let's say for example we created 3 new persons. Now I recognize, that the second person is false and I want to delete it. When I click on the of person 2 I want to get the array index of the html element. I have already tried this, but it does not really work well:
<div v-for="newContent in temp" :key="newContent.id" @click="showId(newContent.id)" v-show="true">
showId(index){
alert(index);
}
Is there an other way how I could find out the index in the array of the html div I clicked?
Please, check Vue.js list rendering.
You can iterate through array with both element and index like this:
<li v-for="(item, index) in items">
{{ index }} - {{ item.message }}
</li>
For your case:
<div v-for="(newContent, index) in temp" :key="newContent.id" @click="showId(index)" v-show="true">
You can define index variable in v-for loop itself. Like
<div v-for="(person,index) in persons" :key="index">
{{index}} //which is index of current item
</div>