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script.js
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script.js
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let loginValidator ={
handleSubmit:(event)=>{
event.preventDefault();
let send = true;
let inputs = form.querySelectorAll('input');
loginValidator.clearErrors();
for (let i=0; i<inputs.length; i++) {
let input = inputs[i];
let check = loginValidator.checkInput(input);
if (check !== true) {
send = false;
// Exibe o erro
loginValidator.showError(input, check);
}
}
if (send) {
form.submit();
}
},
checkInput:(input) => {
let rules = input.getAttribute('data-rules');
if(rules !== null) {
rules = rules.split('|');
for(let k in rules) {
let rulDetails = rules[k].split('=');
switch(rulDetails[0]) {
case 'required':
if(input.value == '') {
return 'Campo obrigatório.';
}
break;
case 'min':
if(input.value.length < rulDetails[1]) {
return `Campo tem que ter no mínimo ${rulDetails[1]} caracteres.`;
}
break;
case 'email':
if (input.value != '') {
let regex = /^(([^<>()\[\]\\.,;:\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(!regex.test(input.value.toLowerCase())) {
return 'E-mail digitado não é válido.';
}
}
break;
}
}
}
return true;
},
showError:(input, error) => {
input.style.borderColor = '#FF0000';
let errorElement = document.createElement('div');
errorElement.classList.add('error');
errorElement.innerHTML = error;
input.parentElement.insertBefore(errorElement, input.ElementSibling);
},
clearErrors:() => {
// Limpa as mensagens de erro
let inputs = form.querySelectorAll('input');
for(let i=0; i<inputs.length; i++) {
inputs[i].style = '';
}
let errorElements = document.querySelectorAll('.error')
for( let i = 0; i < errorElements.length; i++ ){
errorElements[i].remove()
}
}
}
let form = document.querySelector('.validator');
form.addEventListener('submit', loginValidator.handleSubmit);