I am dealing with a standard key value array
cost: {[ key: string ] : number};I am exploring ways to configure a dynamic input field
<input name="costCat" [(ngModel)] = "???"/>
<input name="costVal" [(ngModel)] = "???"/>
that can be increased automatically using a button based on the number of cost categories.
The objective is to achieve an object like this:
'{"everyone":"10"}'
or even something similar to this
'{"young":"free", "adult":10, "elderly":"free"}'
After working on it for some time, I finally came up with this solution:
Here is what the ts file looks like:
export class AppComponent implements OnInit {
name = 'Dynamic Add Fields';
values = [];
ngOnInit() {
}
removevalue(i){
this.values.splice(i,1);
}
addvalue(k:string){
this.values.push({key:k,value: ""});
}
}
And here is the html file implementation:
<div *ngFor="let value of values; let i = index">
<input type="text" [(ngModel)]="value.key" #name="ngModel" name="value{{i}}">
<input type="text" [(ngModel)]="value.value" #name="ngModel" name="value{{i}}">
<button (click)="removevalue(i)">Remove</button>
</div>
<button (click)="addvalue('')">ADD</button>
<h2>Result</h2>
<div *ngFor="let value of values;">
{{ value.key }}:{{value.value}}
</div>
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