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endsWith

Validate that a string ends with at least one of the given substrings (case-insensitive).

Signature​

NguardValidators.String.endsWith(...values: primitive[]): ValidatorFn
ParameterTypeDescription
...valuesprimitive[]One or more substrings — the input must end with at least one of them

Reactive forms​

import { FormControl } from '@angular/forms';
import { NguardValidators } from 'ng-nguard';

const filename = new FormControl('', [
    NguardValidators.String.endsWith('.png', '.jpg', '.gif'),
]);

Template-driven forms​

<input ngModel name="filename" [nguardEndsWith]="['.png', '.jpg', '.gif']" />

Error key​

{ endsWith: true }

Notes​

  • The check is case-insensitive.
  • Numbers and booleans are coerced to string before comparison.
  • Empty strings fail.
  • If no values are supplied, validation always fails.

See also​