How can I insert an array of string elements into a template element's value attribute in Angular 2?

Inside my Angular 2 component class, I have an array named myArray:

@Component({
    templateUrl: 'my.component.html'
})

export class MyComponent {
    private myArray: Array<string>;
    ...
}

The corresponding HTML file my.component.html contains a single input element:

<input placeholder='write some tags' value=''>

I want to populate the value attribute of the input element with the string elements from myArray, separated by commas. For example:

<input placeholder='write some tags' value='apple, orange, banana'>

I initially tried using *ngFor directive within the value attribute like this:

<input name='user-tag' placeholder='write some tags' value='*ngFor="let e of myArray"{{e}}'>

However, this approach resulted in an error. How can I achieve the desired outcome?

Answer №1

Avoid using *ngFor and consider utilizing the Array.join() method instead.

<input name='user-tag' placeholder='enter some tags' value='{{ myArray.join(', ') }}'>

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