在数组Javascript中插入或更新对象

Question

I am trying to insert or update already existed object in an empty Array in Vue.js:

additionalFields: [
                    {
                        name: '',
                        description: ''
                    }
                ]

I am getting the data from a child component:

updateAdditionalTitleForm(value, index) {
            this.$emit('updateAdditionalTitle', value, index);
        },
        updateAdditionalDescriptionForm(value, index) {
            this.$emit('updateAdditionalDescription', value, index);
        }

I am receiving the data correctly, I just don't seem to insert or update them correctly at the given index:

adaptAdditionalTitleForm(value, index) {
            this.form.additionalFields.push({ title: value });
        },
        adaptAdditionalDescriptionForm(value, index) {
            this.form.additionalFields.push({ description: value });
        }

This will create a separate object and I want to have title and description in one object. What to do?

Answer 1

You need to use the given index param to update particular object fields in the additionalFields array.

adaptAdditionalTitleForm(obj) {
   if(!obj.index || (obj.index && obj.index>=this.form.additionalFields.length)){
       this.form.additionalFields.push({title:object.value,description:''}) 
   }else if(obj.index) {
   this.form.additionalFields[obj.index].title= obj.value;
  }
},

adaptAdditionalDescriptionForm(obj) {
 if(!obj.index || (obj.index && obj.index>=this.form.additionalFields.length)){
   this.form.additionalFields.push({description:obj.value,title:''})
  }else if(obj.index){
     this.form.additionalFields[obj.index].description=obj.value;
  }
}

Also passing multiple arguments to emit doesn't work so you need to wrap them in an object.

updateAdditionalTitleForm(value, index) {
    this.$emit('updateAdditionalTitle', {value,index});
},
updateAdditionalDescriptionForm(value, index) {
   this.$emit('updateAdditionalDescription',{value,index});
}