wspringer · April 18, 2024 07:50
diff --git a/functional-style.ts b/functional-style.ts
 const numberRegexp = /^[0-9]+$/;

 export type Validator<T> = (t: T) => boolean

 export function validZip(s: string) {
  return s.length === 5 && numberRegexp.test(s);
 }

 validZip("09809"); // true
	const numberRegexp = /^[0-9]+$/;

	export type Validator<T> = (t: T) => boolean

	export function validZip(s: string) {
	return s.length === 5 && numberRegexp.test(s);
	}

	validZip("09809"); // true