class-validator
Version:
Decorator-based property validation for classes.
36 lines • 1.59 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ArrayUnique = exports.arrayUnique = exports.ARRAY_UNIQUE = void 0;
const ValidateBy_1 = require("../common/ValidateBy");
exports.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.
*/
function arrayUnique(array, identifier) {
if (!Array.isArray(array))
return false;
if (identifier) {
array = array.map(o => (o != null ? identifier(o) : o));
}
const uniqueItems = array.filter((a, b, c) => c.indexOf(a) === b);
return array.length === uniqueItems.length;
}
exports.arrayUnique = 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.
*/
function ArrayUnique(identifierOrOptions, validationOptions) {
const identifier = typeof identifierOrOptions === 'function' ? identifierOrOptions : undefined;
const options = typeof identifierOrOptions !== 'function' ? identifierOrOptions : validationOptions;
return (0, ValidateBy_1.ValidateBy)({
name: exports.ARRAY_UNIQUE,
validator: {
validate: (value, args) => arrayUnique(value, identifier),
defaultMessage: (0, ValidateBy_1.buildMessage)(eachPrefix => eachPrefix + "All $property's elements must be unique", options),
},
}, options);
}
exports.ArrayUnique = ArrayUnique;
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