class-validator/esm2015/decorator/string/MaxLength.js

Decorator-based property validation for classes.

import { buildMessage, ValidateBy } from '../common/ValidateBy';
import isLengthValidator from 'validator/lib/isLength';
export const MAX_LENGTH = 'maxLength';
/**
 * Checks if the string's length is not more than given number. Note: this function takes into account surrogate pairs.
 * If given value is not a string, then it returns false.
 */
export function maxLength(value, max) {
    return typeof value === 'string' && isLengthValidator(value, { min: 0, max });
}
/**
 * Checks if the string's length is not more than given number. Note: this function takes into account surrogate pairs.
 * If given value is not a string, then it returns false.
 */
export function MaxLength(max, validationOptions) {
    return ValidateBy({
        name: MAX_LENGTH,
        constraints: [max],
        validator: {
            validate: (value, args) => maxLength(value, args.constraints[0]),
            defaultMessage: buildMessage(eachPrefix => eachPrefix + '$property must be shorter than or equal to $constraint1 characters', validationOptions),
        },
    }, validationOptions);
}
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