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90 lines (76 loc) · 2.52 KB
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// * getting all the DOM fields that we are gonna needed
const form = document.getElementById('form');
const username = document.getElementById('username');
const email = document.getElementById('email');
const password = document.getElementById('password');
const confirmPassword = document.getElementById('confirm-password');
// * showing the input error
const showError = (input, message) => {
const formControl = input.parentElement;
const small = formControl.querySelector('small');
formControl.className = 'form-control error';
small.innerText = message;
};
// * showing the input message
const showSuccess = (input) => {
const formControl = input.parentElement;
formControl.className = 'form-control success';
};
// * validating the Email
const checkEmail = (input) => {
const re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
if (re.test(String(input.value).toLowerCase())) {
showSuccess(input);
} else {
showError(input, 'Email is not valid');
}
};
// * Capitalizing the field name
const getFieldName = (input) => {
return (
String(input.id).charAt(0).toUpperCase() +
String(input.id).substring(1, input.id.length)
);
};
// * check Required function
const checkRequired = (inputArray) => {
inputArray.forEach((input) => {
if (input.value.trim() === '') {
showError(input, `${getFieldName(input)} is required 😢`);
} else {
showSuccess(input);
}
});
};
// * check length function
const checkLength = (input, min, max) => {
if (input.value.length < min) {
showError(
input,
`${getFieldName(input)} must be at least ${min} characters`
);
} else if (input.value.length > max) {
showError(
input,
`${getFieldName(input)} must be less ${max} characters`
);
} else {
showSuccess(input);
}
};
// * Check confirm password fucntion
const checkPasswordMatch = (input1, input2) => {
if (input1.value != input2.value) {
showError(input2, "Passwords don't match");
}
};
// * event lisiteners
form.addEventListener('submit', (event) => {
event.preventDefault();
const inputs = [username, email, password, confirmPassword];
checkRequired(inputs);
checkLength(username, 3, 15);
checkLength(password, 6, 25);
checkEmail(email);
checkPasswordMatch(password, confirmPassword);
});