composite-validation/lib/operators/required.d.ts

Composite validation API for JS data models

import { ValueValidationError } from '../types';
/**
 * Value is required (should be defined).
 * @param val Verified value.
 */
export declare function required(val: any): any;
/**
 * If condition returns true value is required (should be defined).
 * @param val Verified value.
 * @param condition Condition represented by function (returns true/false).
 */
export declare function required(val: any, condition: () => boolean): any;
/**
 * If condition returns true value is required (should be defined).
 * @param val Verified value.
 * @param condition Condition represented by function (returns true/false).
 * @param error Error text or object.
 */
export declare function required(val: any, condition: () => boolean, error: string | ValueValidationError): any;
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