I have an array of object need to show hide based on filter like below:
HTML CODE:
Filter:
<div (click)="filter(1)"> F1 </div>
<div (click)="filter(2)"> F2 </div>
<div (click)="filter(3)"> F3 </div>
<div (click)="filter(4)"> F4 </div>
<div *ngFor="let data of datas">
<span *ngIf="data.show">
{{data.name}}
</span>
</div>
ts Code:
this.datas = `[{'name':'product one','filter':'1'},{'name':'product two','filter':'2'},{'name':'product three','filter':'3'},{'name':'product three','filter':'3'},{'name':'product','filter':''},{'name':'product','filter':''},{'name':'product one','filter':'1'},{'name':'product'}]`
filter(query){
this.datas.forEach(function (element, index) {
if (element.filter == query ) {
element.show = true;
} else {
element.show = false;
}
I have tried the above approach it's not working . Expected like:
Observation/Suggestions :
show. You can easily achieve that by filtering out the datas array based on the value passed in the filter() method.filter().Working Demo : https://jsfiddle.net/srvpw2bo/
The array objects do not have the show property that you test in the *ngIf directive
Rather simple, really.
I made you a small stackblitz app. But you also really, really need to work on your code. Even as a description for your help, this is just pretty messy.
I didn't code your "Multiple Selections" for you.
https://stackblitz.com/edit/angular-ivy-fbpgdv?file=src/app/app.component.ts