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digitsBetween

Validate that an integer's digit count falls within a closed range [min, max] (inclusive).

Signature​

NguardValidators.Number.digitsBetween(minVal: number, maxVal: number): ValidatorFn
ParameterTypeDescription
minValnumberInclusive minimum digit count
maxValnumberInclusive maximum digit count

Reactive forms​

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

const code = new FormControl('', [NguardValidators.Number.digitsBetween(4, 6)]);

Template-driven forms​

<input ngModel name="code" [nguardDigitsBetween]="[4, 6]" />

The directive accepts a [number, number] tuple.

Error key​

{ digitsBetween: true }

Notes​

  • The value must be an integer. Floats fail.
  • The range is inclusive on both ends.
  • Sign is excluded from the count.
  • Throws RangeValidatorErrors.MinGreaterThanMax if minVal > maxVal.

See also​