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Error
Error
  • Introduction
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  • Getting started
    • Skeleton
    • Installation
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    • Basic concepts
  • CommonError {}
    • Overview
    • Generic type variables
    • Constructor
    • Accessors
      • get fix()
      • get id()
      • get link()
      • get message()
      • get problem()
      • get template()
    • Properties
      • static template
      • #fix
      • #id?
      • #link?
      • #problem
      • #template
    • Methods
      • static defineMessage()
      • static isError()
  • CommonErrors {}
    • Overview
    • Generic type variables
    • Constructor
    • Accessors
      • get errors()
    • Properties
      • static template?
      • #id?
      • #errors
    • Methods
      • delete()
      • has()
      • throw()
      • isAllowedId()
  • Error {}
    • Overview
    • Generic type variables
    • ★ Constructor
    • Accessors
      • get name()
      • get [Symbol.toStringTag]()
    • Methods
      • static define()
      • static isError()
  • Errors {}
    • Overview
    • Generic type variables
    • Constructor
    • Methods
      • get()
      • getErrors()
      • set()
    • Example usage
  • RangeError {}
    • Overview
    • Generic type variables
    • ★ Constructor
    • Accessors
      • get max()
      • get min()
      • get name()
      • get range()
      • get [Symbol.toStringTag]()
    • Properties
      • static template
      • #max?
      • #min?
    • Methods
      • static define()
      • static isRangeError()
  • RangeErrors {}
    • Overview
    • Generic type variables
    • Constructor
    • Methods
      • get()
      • getErrors()
      • set()
    • Example usage
  • TypeError {}
    • Overview
    • Generic type variables
    • ★ Constructor
    • Accessors
      • get name()
      • get type()
      • get [Symbol.toStringTag]()
    • Properties
      • static template
      • #type?
    • Methods
      • static define()
      • static isTypeError()
  • TypeErrors {}
    • Overview
    • Generic type variables
    • Constructor
    • Methods
      • get()
      • getErrors()
      • set()
  • ValidationError {}
    • Overview
    • Generic type variables
    • ★ Constructor
    • Accessors
      • get name()
      • get [Symbol.toStringTag]()
    • Methods
      • static define()
      • static isValidationError()
  • ValidationErrors {}
    • Overview
    • Generic type variables
    • Constructor
    • Methods
      • get()
      • getErrors()
      • set()
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On this page
  • ValidationError.isValidationError()
  • Generic type variables
  • Parameters
  • Return type
  • Returns
  • Example usage

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  1. ValidationError {}
  2. Methods

static isValidationError()

Checks whether the value of any type is an instance of `ValidationError`

ValidationError.isValidationError()

Checks whether the value of any type is the ValidationError instance of any or the given identification.

validation-error.class.ts
public static isValidationError<Id extends string>(
  value: any,
  id?: Id
): value is ValidationError<Id> {
  return super.isError(value, id);
}

Generic type variables

Idextendsstring

A generic type variable constrained by the string, by default of the value captured from the provided optional id indicates the identification type of the ValidationError via return type.

Parameters

value:any

The value of any type to check against the ValidationError instance.

id?:Id

Optional unique identification of generic type variable Id to check whether the given value contains.

Return type

value is ValidationError<Id>

The return type is a boolean resulting from its statement indicating the value is the ValidationError object that takes the generic type variable Id.

Returns

The return value is a boolean type indicating whether the given value is an instance of ValidationError of any or the supplied optional id properties.

Example usage

// Example usage.
import { ValidationError } from '@angular-package/error';

// Define error.
const err = ValidationError.define('Wrong type', 'Change the type', 'TE:201');

// Returns true.
ValidationError.isValidationError(err);

// Returns true.
ValidationError.isValidationError(err, 'TE:201');

// Returns true.
ValidationError.isValidationError(err, 'TE:201');

// Returns false.
ValidationError.isValidationError(err, 'TE:202');

// Returns false.
ValidationError.isValidationError(new Array());
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Last updated 1 year ago

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