class-validator
Version:
Decorator-based property validation for classes.
21 lines • 720 B
JavaScript
import { buildMessage, ValidateBy } from '../common/ValidateBy';
export const IS_NEGATIVE = 'isNegative';
/**
* Checks if the value is a negative number smaller than zero.
*/
export function isNegative(value) {
return typeof value === 'number' && value < 0;
}
/**
* Checks if the value is a negative number smaller than zero.
*/
export function IsNegative(validationOptions) {
return ValidateBy({
name: IS_NEGATIVE,
validator: {
validate: (value, args) => isNegative(value),
defaultMessage: buildMessage(eachPrefix => eachPrefix + '$property must be a negative number', validationOptions),
},
}, validationOptions);
}
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