class-validator-multi-lang/esm2015/decorator/array/ArrayUnique.js

Decorator-based property validation for classes.

import { buildMessage, ValidateBy } from '../common/ValidateBy';
import { getText } from '../get-text';
export const ARRAY_UNIQUE = 'arrayUnique';
/**
 * Checks if all array's values are unique. Comparison for objects is reference-based.
 * If null or undefined is given then this function returns false.
 */
export function arrayUnique(array) {
    if (!(array instanceof Array))
        return false;
    const uniqueItems = array.filter((a, b, c) => c.indexOf(a) === b);
    return array.length === uniqueItems.length;
}
/**
 * Checks if all array's values are unique. Comparison for objects is reference-based.
 * If null or undefined is given then this function returns false.
 */
export function ArrayUnique(validationOptions) {
    return ValidateBy({
        name: ARRAY_UNIQUE,
        validator: {
            validate: (value, args) => arrayUnique(value),
            defaultMessage: buildMessage(eachPrefix => eachPrefix + getText("All $property's elements must be unique"), validationOptions),
        },
    }, validationOptions);
}
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