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Version: 0.10.0

sizeBetween

Validate that the array item count is within [min, max] inclusive. A non-array value fails.

Signature​

NguardValidators.Array.sizeBetween(min: number, max: number): ValidatorFn
ParameterTypeDescription
minnumberThe minimum number of items (inclusive)
maxnumberThe maximum number of items (inclusive)

Reactive forms​

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

new FormControl([], [NguardValidators.Array.sizeBetween(1, 3)]);

Template-driven forms​

<!-- The directive takes a [min, max] tuple -->
<input ngModel name="tags" [nguardSizeBetween]="[1, 3]" />

Error key​

{ sizeBetween: true }

Notes​

  • A non-array value (including null/undefined) fails.

See also​