Key (Pipe)

This pipe can be used for "for loops", in the case of an array with non-numeric indexes. It returns the key and the value(s). In the example below the {{item.key}} contains the index value and the {{item.value}} contains the value(s).

When the value is an object with name and label, you get them with {{item.value.name}} and {{item.value.label}}.

Examples

HTML file

<ul>
    <li *ngFor="let item of array | dspKey">
        {{item.key}}: {{item.value}}
    </li>
</ul>

Typescript file

array = [];

this.array['index-1'] = 'Value in index 1';
this.array['index-2'] = 'Value in index 2';
this.array['index-3'] = 'Value in index 3';

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Last update: 2021-08-13