I am working with two arrays of strings. One array is a dynamic list of checkboxes and the other is the source to check if the item exists in the first array. I need to implement this dynamically using Angular 6, can you help me with this?
Currently, the list of checkboxes needs to be updated dynamically based on certain conditions...
<div *ngFor="let p of people">
<mat-checkbox class="example-margin secondary-text"
[checked]="false" >p</mat-checkbox>
</div>
If you want to verify the presence of items in both arrays, you can utilize a method like the one below, assuming that the arrays are string arrays as per your mention.
// Template
<div *ngFor="let p of people">
<mat-checkbox class="example-margin secondary-text"
[checked]="isInOtherArray(p)" >p</mat-checkbox>
</div>
// Component Method
public isInOtherArray(person) {
return this.otherArray.indexOf(person) > -1;
}
Alternatively, you can directly implement it in your template:
<div *ngFor="let p of people">
<mat-checkbox class="example-margin secondary-text"
[checked]="otherArray.indexOf(p) > -1" >p</mat-checkbox>
</div>
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