Validation

Q2.js

function validate(password) {
	var length = password.length;
	var invalidMessage = '';
	var result = {
		"isValid": true,
		"message": ''
	}
	var rule = '';
	if (length < 8) {
		invalidMessage = 'You have to provide at least 8 characters'
		result.message = invalidMessage;
		return result;
	} else if (length >= 8 && length <= 11) {
		rule = /^(?=.*?[A-Z])(?=.*?[a-z])(?=.*?[0-9])(?=.*?[#?!@$%^&*-]).{8,11}$/;
		invalidMessage = 'Password requirs mixed letter, numbers, and symbols';
	} else if (length >= 12 && length <= 15) {
		var rule = /^(?=.*?[A-Z])(?=.*?[a-z])(?=.*?[0-9]).{12,15}$/;
		invalidMessage = 'Password requirs mixed letter, numbers';
	} else if (length >= 16 && length <= 19) {
		var rule = /^(?=.*?[A-Z])(?=.*?[a-z]).{16,19}$/;
		invalidMessage = 'Password requirs mixed letter';
	} else if (length >= 20) {
		return result;
	}

	// Do the validation
	if (!rule.test(password)) {
		result.isValid = false;
		result.message = invalidMessage;
	}
	
	return result;
}