@seges/angular-validators/src/app/validators/dateTime/time24Hour.ts

TypeScript 1.8.10

import { IValidator } from "../IValidator";

export class Time24HourValidator implements IValidator<void> {
    private regex: RegExp;

    constructor() {
        this.regex = new RegExp("^([0-1]?[0-9]|2[0-3]):[0-5][0-9]$");
    }

    /**
     * Validate input as 24 hour time format (HH:mm)
     * If value is a valid 24 hour time format, return true. Otherwise return false.
     * @param: Time value to test
     */
    isValid(value: string): boolean {
        if (!value) {
            return false;
        }

        return this.regex.test(value);
    }
}