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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | 10x 2x 8x 3x 5x | import { Validator } from "../types";
/**
* Given a string, array or any other object having a `length: number`
* property, checks the actual length against expected maximum.
*
* @example
*
* ```ts
* import { maxLength } from 'compose-validators';
*
* const validate = maxLength(3);
*
* validate([1,2,3,4]) // => { maxLength: 3 }
* validate([1,2,3]) // => {}
* validate("abcd") // => { maxLength: 3 }
* validate("abc") // => {}
* ```
*
* @param length maximum length allowed
*/
export const maxLength = <T extends { length: number }>(
length: number
): Validator<T> => (value: T) => {
if (value.length > length) {
return { maxLength: length };
}
return {};
};
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