I am trying to display an error message for each empty field, my problem is that when I submit the form with an empty (one or two) field all the error messages appear. I want only one error message for each empty field to appear, not all of them.
HTML :
<form action="" id="my-form">
<label for="name">
<input type="text" id="name" name="firstName" placeholder="First Name">
<p class="error-field">First Name cannot be empty</p>
</label>
<label for="last-name">
<input type="text" id="last-name" name="lastName" placeholder="Last Name">
<p class="error-field">Last Name cannot be empty</p>
</label>
<label for="email">
<input type="email" id="email" name="email" placeholder="Email Address">
<p class="error-field">Looks like this is not an email</p>
</label>
<label for="password">
<input type="password" id="password" name="password" placeholder="Password">
<p class="error-field">Password cannot be empty</p>
</label>
<button type="submit" name="submit" class="form-button">Claim your free trial </button>
<p>By clicking the button, you are agreeing to our Terms and Services</p>
</form>
JavaScript:
const submitButton = document.querySelector('.form-button');
const errorField = document.querySelectorAll(".error-field");
const validate = (e) => {
e.preventDefault();
const firstName = document.getElementById("name");
const lastName = document.getElementById("last-name");
const email = document.getElementById("email");
const password = document.getElementById("password");
if(firstName.value < 1 ) {
errorField.forEach((f) => f.classList.toggle('error-active'));
errorField.forEach((c) => c.style.color = "red");
firstName.classList.toggle("invalid");
return false;
}
if (lastName.value < 1) {
errorField.forEach((f) => f.classList.toggle("error-active"));
errorField.forEach((c) => (c.style.color = "red"));
lastName.classList.toggle("invalid");
return false;
}
if (email.value < 1) {
errorField.forEach((f) => f.classList.toggle("error-active"));
errorField.forEach((c) => (c.style.color = "red"));
email.classList.toggle("invalid");
return false;
}
if (password.value < 1) {
errorField.forEach((f) => f.classList.toggle("error-active"));
errorField.forEach((c) => (c.style.color = "red"));
password.classList.toggle("invalid");
return false;
} else {
password.classList.remove("invalid");
errorField.classList.remove("error-active");
}
return true;
}
submitButton.addEventListener('click' , validate);
Hope this fixed your issue. Notice, password changed to passwordD and you were accessing all the error field without specifying which
const submitButton = document.querySelector('.form-button');
const errorField = document.querySelectorAll(".error-field");
const validate = (e) => {
e.preventDefault();
const firstName = document.getElementById("name");
const lastName = document.getElementById("last-name");
const email = document.getElementById("email");
const passwordD = document.getElementById("password");
if (firstName.value < 1) {
errorField[0].classList.toggle('error-active');
errorField[0].style.color = "red";
firstName.classList.toggle("invalid");
}
if (lastName.value < 1) {
errorField[1].classList.toggle("error-active");
errorField[1].style.color = "red";
lastName.classList.toggle("invalid");
}
if (email.value < 1) {
errorField[2].classList.toggle("error-active");
errorField[2].style.color = "red";
email.classList.toggle("invalid");
}
if (password.value < 1) {
errorField[3].classList.add("error-active");
errorField[3].style.color = "red";
passwordD.classList.toggle("invalid");
} else {
passwordD.classList.remove("invalid");
errorField.forEach((f) => {
f.classList.remove("error-active");
f.style.color = "black";
});
return true;
}
return false;
}
submitButton.addEventListener('click', validate);
<form action="" id="my-form">
<label for="name">
<input type="text" id="name" name="firstName" placeholder="First Name">
<p class="error-field">First Name cannot be empty</p>
</label>
<label for="last-name">
<input type="text" id="last-name" name="lastName" placeholder="Last Name">
<p class="error-field">Last Name cannot be empty</p>
</label>
<label for="email">
<input type="email" id="email" name="email" placeholder="Email Address">
<p class="error-field">Looks like this is not an email</p>
</label>
<label for="password">
<input type="password" id="password" name="password" placeholder="Password">
<p class="error-field">Password cannot be empty</p>
</label>
<button type="submit" name="submit" class="form-button">Claim your free trial </button>
<p>By clicking the button, you are agreeing to our Terms and Services</p>
</form>
I would suggest you to use a form validation JS plugin instead of reinveting the wheel, for example Form Validation Plugin
You can simplify your code a bit using a class for the inputs, and keeping track of an isValid boolean for the form. You were setting all error-fields with your code. Here, we are able to reference just the error-field that applies using closest() to find the encompassing label, then querySelector to find the error-field
el.closest('label').querySelector('.error-field');
const submitButton = document.querySelector('.form-button');
const validate = (e) => {
e.preventDefault();
let isValid = true
document.querySelectorAll('.validate').forEach(el => {
let error = el.closest('label').querySelector('.error-field').classList;
if (el.value.trim().length === 0) {
isValid = false;
error.add('error-active');
el.classList.add('invalid')
} else {
error.remove('error-active');
el.classList.remove('invalid')
}
})
return isValid;
}
submitButton.addEventListener('click', validate);
.error-field.error-active,
input.invalid{
color: #f00;
}
<form action="" id="my-form">
<label for="name">
<input type="text" id="name" class='validate' name="firstName" placeholder="First Name">
<p class="error-field">First Name cannot be empty</p>
</label>
<label for="last-name">
<input type="text" id="last-name" class='validate' name="lastName" placeholder="Last Name">
<p class="error-field">Last Name cannot be empty</p>
</label>
<label for="email">
<input type="email" id="email" class='validate' name="email" placeholder="Email Address">
<p class="error-field">Looks like this is not an email</p>
</label>
<label for="password">
<input type="password" id="password" class='validate' name="password" placeholder="Password">
<p class="error-field">Password cannot be empty</p>
</label>
<button type="submit" name="submit" class="form-button">Claim your free trial </button>
<p>By clicking the button, you are agreeing to our Terms and Services</p>
</form>
That's because inside each if statement you are looping through all the Error fields in the form and update it all. So what you can do is first add unique id for each dom entry in the HTML file such as err-password, error-name and so on then inside each if statement grab the relevant eror field that needs to show the error and update only that field.
Using nextElementSibling would simplify your code a lot here... Since the error message always is right after the input.
In the condition to show or not the error.. That is the value.length you have to check.
const submitButton = document.querySelector('.form-button');
const errorField = document.querySelectorAll(".error-field");
const validate = (e) => {
// Remove any already displayed error
errorField.forEach(function(error){
error.classList.remove("invalid");
})
// Loop through all inputs to check the value length
document.querySelectorAll("form input").forEach(function(input){
if(input.value.length < 1){
input.nextElementSibling.classList.toggle("invalid");
}
})
// Prevent submit only if there are errors shown
let errorCount = document.querySelectorAll(".error-field.invalid").length
if(errorCount){
e.preventDefault();
}
}
submitButton.addEventListener('click' , validate);
label{
display: block;
}
label p{
margin: 0;
}
.error-field{
display: none;
color: red;
}
.invalid{
display: inline-block;
}
<form action="" id="my-form">
<label for="name">
<input type="text" id="name" name="firstName" placeholder="First Name">
<p class="error-field">First Name cannot be empty</p>
</label>
<label for="last-name">
<input type="text" id="last-name" name="lastName" placeholder="Last Name">
<p class="error-field">Last Name cannot be empty</p>
</label>
<label for="email">
<input type="email" id="email" name="email" placeholder="Email Address">
<p class="error-field">Looks like this is not an email</p>
</label>
<label for="password">
<input type="password" id="password" name="password" placeholder="Password">
<p class="error-field">Password cannot be empty</p>
</label>
<button type="submit" name="submit" class="form-button">Claim your free trial </button>
<p>By clicking the button, you are agreeing to our Terms and Services</p>
</form>
I've tried this many different ways... don't know why this is redirecting still. I suppose in the past I've always used a button instead of a submit input and as such I never ran into this issue. However, I think it's time to get to the bottom of this!
HTML FORM
<form class="col-xs-12" action="mail.php" method="POST" >
<h2 class="headerFont">Contact</h2>
<p>Use the form below to send to contact me via email. I will be in touch soon after receiving your message.</p>
<div class="row">
<div class="col-xs-12 col-sm-6">
<input class="col-xs-12" placeholder="Full Name" title="Enter Full Name" type="text" name="name">
<input class="col-xs-6" placeholder="Email Address" title="Enter Email Address" type="email" name="email">
<input class="col-xs-6" placeholder="Mobile Phone Number" title="Enter Mobile Phone Number" type="tel" name="phone">
<input class="col-xs-12" placeholder="Street Address" title="Enter Street Address" type="text" name="address">
<input type="text" name="_gotcha" id="_gotcha" style="display: none !important">
<select class="col-xs-12" name="service">
<option selected disabled>Select Service</option>
<option>Group Walking</option>
<option>Private Walking</option>
<option>Pet Sitting</option>
</select>
</div>
<div class="col-xs-12 col-sm-6">
<textarea class="col-xs-12" placeholder="Message Here" rows="10" name="message"></textarea>
</div>
</div>
<input type="submit" value="Send" onclick="formSubmit(e)">
</form>
JAVASCRIPT CODE
function formSubmit(e) {
e.preventDefault();
return false;
console.log("Ajax Init");
var form = e.target,
data = new FormData(),
xhr = new XMLHttpRequest();
for (var i = 0, ii = form.length - 1; i < ii; ++i) {
var input = form[i];
data.append(input.name, input.value);
if (input.getAttribute("name") !== "_gotcha") {
if (input.value === "" || input.value === null || input.value === "undefined") {
alert("Please fill out all form fields before submitting");
break;
}
}
}
xhr.open(form.method.toUpperCase(), form.action, true);
if (document.getElementById("_gotcha").value.length == 0){
xhr.send(data);
} else {
break;
}
xhr.onloadend = function () {
// done
for (var i = 0, ii = form.length - 1; i < ii; ++i) {
var input = form[i];
input.value = "";
}
alert("Message Sent - Thank You");
};
};
It seems a better option is to use onsubmit attribute.
function formSubmit(form) {
console.log("Ajax Init");
var data = new FormData(form), // simpler
xhr = new XMLHttpRequest();
for (var i = 0, ii = form.length - 1; i < ii; ++i) {
var input = form[i];
//data.append(input.name, input.value);
if (input.getAttribute("name") !== "_gotcha") {
if (input.value === "" || input.value === null || input.value === "undefined") {
alert("Please fill out all form fields before submitting");
// something went wrong, prevent form from submitting
return false;
}
}
}
xhr.open(form.method.toUpperCase(), form.action, true);
if (document.getElementById("_gotcha").value.length == 0) {
xhr.send(data);
} else {
// something went wrong, prevent form from submitting
return false;
}
xhr.onloadend = function() {
// done
for (var i = 0, ii = form.length - 1; i < ii; ++i) {
var input = form[i];
input.value = "";
}
alert("Message Sent - Thank You");
};
// everything went ok, submit form
return true;
};
<!-- note the use of return -->
<form class="col-xs-12" action="mail.php" method="POST" onsubmit="return formSubmit(this)">
<h2 class="headerFont">Contact</h2>
<p>Use the form below to send to contact me via email. I will be in touch soon after receiving your message.</p>
<div class="row">
<div class="col-xs-12 col-sm-6">
<input class="col-xs-12" placeholder="Full Name" title="Enter Full Name" type="text" name="name">
<input class="col-xs-6" placeholder="Email Address" title="Enter Email Address" type="email" name="email">
<input class="col-xs-6" placeholder="Mobile Phone Number" title="Enter Mobile Phone Number" type="tel" name="phone">
<input class="col-xs-12" placeholder="Street Address" title="Enter Street Address" type="text" name="address">
<input type="text" name="_gotcha" id="_gotcha" style="display: none !important">
<select class="col-xs-12" name="service">
<option selected disabled>Select Service</option>
<option>Group Walking</option>
<option>Private Walking</option>
<option>Pet Sitting</option>
</select>
</div>
<div class="col-xs-12 col-sm-6">
<textarea class="col-xs-12" placeholder="Message Here" rows="10" name="message"></textarea>
</div>
</div>
<!-- upon clicking on the submit button, it will trigger the form's onsubmit handler -->
<input type="submit" value="Send">
</form>
i suggest to use jquery inside of core javascript becuase in javascript it to mush code want to write , i write for you in jquery
step 1: : give id to form tag id="myForm"
step 2: : write script like this
<script>
$('#myForm').submit(function(e){
e.preventDefualt();
data = $(this)..serialize();
});
</script>
I am designing a basic registration form in html and css, and on click of submit button the data will be adding into the server database through post method n accordingly the response will be display on same registration page with json object. For that purpose i am using javascript and ajax but its not working properly.
html
<div class="column1" style="background-color:lightgrey;">
<div class="form">
<div class="formdetail">
<h3>Individual Registration</h3>
<label for="fname"> Name</label><br>
<input type="text" size="40" id="name" name="name" placeholder="Enter your
name.." required><br><br>
<label for="phonenumber">Mobile Number</label>
<br/>
<input type="text" id="mobileno" name="mobileno" maxlength="13"
size="40" placeholder="Enter your mobile number..." class =
"numeric" /><br>
<span class="error" style="color: red; display: none">Input digits (0 -
9)</span>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
var specialKeys = new Array();
specialKeys.push(8); //Backspace
$(function () {
$(".numeric").bind("keypress", function (e) {
var keyCode = e.which ? e.which : e.keyCode
var ret = ((keyCode >= 48 && keyCode <= 57) ||
specialKeys.indexOf(keyCode) != -1);
$(".error").css("display", ret ? "none" : "inline");
return ret;
});
$(".numeric").bind("paste", function (e) {
return false;
});
$(".numeric").bind("drop", function (e) {
return false;
});
});
</script>
<br>
<label for="email">Email</label><br>
<input type="text" size="40" id="email" name="email" pattern="[^
#]*#[^ #]*" name="email" placeholder="Enter your email-id..."
required><br><br>
<label for="Name">Password</label>
<br/>
<input type="password" id="password" name="password" size="40" placeholder="Enter your password" id="username" required>
<br/>
<br/>
<input type="date" id="dt" onchange="mydate1();" hidden/>
<input type="text" id="dob" name="dob" onclick="mydate();" hidden />
<input type="button" Value="Date of Birth" onclick="mydate();" />
<script>
function mydate()
{
//alert("");
document.getElementById("dt").hidden=false;
document.getElementById("dob").hidden=true;
}
function mydate1()
{
d=new Date(document.getElementById("dt").value);
dt=d.getDate();
mn=d.getMonth();
mn++;
yy=d.getFullYear();
document.getElementById("dob").value=dt+"/"+mn+"/"+yy
document.getElementById("dob").hidden=false;
document.getElementById("dt").hidden=true;
}
</script>
<br><br>
<label for="address">Address</label><br>
<input type="text" id="address" size="40" name="address"
placeholder="Enter your address..." required><br><br>
<label for="country">Country</label><br>
<input type="text" id="country" size="40" name="country"
placeholder="Enter your country name....." required><br><br>
<label for="State">State</label><br>
<input type="text" id="state" size="40" name="state"
placeholder="Enter your state name....." required><br><br>
<label for="city">City</label><br>
<input type="text" id="city" size="40" name="city"
placeholder="Enter your city name....." required><br><br>
<input type="hidden" id="category" name="category"
value="Individual">
<input type="button" id="submit"
onclick="myFunction();" value="Submit" ><br>
javascript
<script>
function myFunction(){
var name=document.getElementById("name").value;
var mobileno=document.getElementById("mobileno").value;
var email=document.getElementById("email").value;
var password=document.getElementById("password").value;
var dob=document.getElementById("dob").value;
var address=document.getElementById("address").value;
var country=document.getElementById("country").value;
var state=document.getElementById("state").value;
var city=document.getElementById("city").value;
var country=document.getElementById("country").value;
var dataString ='name='+ name + '&mobileno=' + mobileno + '&email=' +
email + '&password=' + password + '&dob=' + dob + '&address=' + address +
'&country=' + country + '&state=' + state + '&city=' + city + '&country=';
if(name == '' || mobileno == '' || email == '' || password == '' || dob == '' || address == '' || country == '' || state == '' || city == '' || country == '') {
alert("Please Fill All Fields");
}
else
{
$.ajax({
type:"POST",
url:"https://smilestechno.000webhostapp.com/Register.php",
data: dataString,
cache: false,
success: function(html){
alert(html);
}
});
}
return false;
}
I'm trying to validate the inputs, so far I've created only two rules. One to test the phone number and another to test if the passwords entered at the same.
My problem is that for some reason my javascript isn't validating input. I have it referenced in <script>, I call it in the form onsubmit="return validate()". For some reason even with using an alert test to check that its run, that fails. So, I'm not really sure what's wrong, I could do with some extra eyes.
function validate() {
var errMsg = ""; /* stores the error message */
var result = true; /* assumes no errors */
var phonetest1 = true;
var phonetest2 = true;
/*get values from the form*/
var FirstName = document.getElementById("FirstName").value;
var Lastname = document.getElementById("Lastname").value;
var Email = document.getElementById("Email").value;
var Password = document.getElementById("Password").value;
var ConPassword = document.getElementById("ConPassword").value;
var Phone = document.getElementById("Phone").value;
var phonepatt1 = (/\(|0|\d|\)|\d|\d|\d|\d|\d|\d|\d|\d/);
var phonepatt2 = (/0|\d|\s|\d|\d|\d|\d|\d|\d|\d|\d/);
/* Rule one */
if (!phonepatt1.test(Phoneno)) {
phonetest1 = false;
}
if (!phonepatt2.test(Phoneno)) {
phonetest2 = false;
}
if (phonetest1 == false && phonetest2 == false) {
errMsg += "Your Phone number is incorrect .\n";
result = false;
}
alert("I'm running"); /* This isn't working */
/* Rule two */
if (ConPassword != Password) {
errMsg += "Please confirm your password .\n";
result = false;
}
if (errMsg != "") { //only display message box if there is something to show
alert(errMsg);
}
return result;
}
<H1>store Home Page</H1>
<p>Customer Registration: Register
<p>Customer Login: Login
<p>Manager Login Administrators
<form id="UserDetails" method="post" onsubmit="return validate()" action="index.htm">
<fieldset id="Details">
<legend>Your details:</legend>
<p>
<label for="FirstName">First Name</label>
<input type="text" name="FirstName" id="FirstName" pattern="[a-zA-Z]+" size="20" maxlength="20" required="required" />
</p>
<p>
<label for="Lastname">Last Name</label>
<input type="text" name="LastName" id="Lastname" pattern="[a-zA-Z]+" size="20" maxlength="20" required="required" />
</p>
<p>
<label for="Email">Email</label>
<input type="text" name="Email" id="Email" size="20" maxlength="20" required="required" />
</p>
<p>
<label for="Password">Password</label>
<input type="text" name="Password" id="Password" size="20" maxlength="20" required="required" />
</p>
<p>
<label for="ConPassword">Confirm Password</label>
<input type="text" name="ConPassword" id="ConPassword" size="20" maxlength="20" required="required" />
</p>
<p>
<label for="Phone">Phone Number</label>
<input type="text" name="Phone" id="Phone" maxlength="12" size="12" placeholder="(03)92251515" />
</p>
<input type="submit" value="Register Now!" />
<input type="reset" value="Reset" />
</fieldset>
</form>
You have wrog name in your JavaScript (should be Phone instead of Phoneno):
if (!phonepatt1.test(Phone)) {
phonetest1 = false;
}
if (!phonepatt2.test(Phone)) {
phonetest2 = false;
}
I have a project in which I have to add a registration form and I want to to validate that the password and confirm fields are equal without clicking the register button.
If password and confirm password field will not match, then I also want to put an error message at side of confirm password field and disable registration button.
following is my html code..
<form id="form" name="form" method="post" action="registration.php">
<label >username :
<input name="username" id="username" type="text" /></label> <br>
<label >password :
<input name="password" id="password" type="password" /></label>
<label>confirm password:
<input type="password" name="confirm_password" id="confirm_password" />
</label>
<label>
<input type="submit" name="submit" value="registration" />
</label>
Is there any way to do this?
We will be looking at two approaches to achieve this. With and without using jQuery.
1. Using jQuery
You need to add a keyup function to both of your password and confirm password fields. The reason being that the text equality should be checked even if the password field changes. Thanks #kdjernigan for pointing that out
In this way, when you type in the field you will know if the password is same or not:
$('#password, #confirm_password').on('keyup', function () {
if ($('#password').val() == $('#confirm_password').val()) {
$('#message').html('Matching').css('color', 'green');
} else
$('#message').html('Not Matching').css('color', 'red');
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<label>password :
<input name="password" id="password" type="password" />
</label>
<br>
<label>confirm password:
<input type="password" name="confirm_password" id="confirm_password" />
<span id='message'></span>
</label>
and here is the fiddle: http://jsfiddle.net/aelor/F6sEv/325/
2. Without using jQuery
We will use the onkeyup event of javascript on both the fields to achieve the same effect.
var check = function() {
if (document.getElementById('password').value ==
document.getElementById('confirm_password').value) {
document.getElementById('message').style.color = 'green';
document.getElementById('message').innerHTML = 'matching';
} else {
document.getElementById('message').style.color = 'red';
document.getElementById('message').innerHTML = 'not matching';
}
}
<label>password :
<input name="password" id="password" type="password" onkeyup='check();' />
</label>
<br>
<label>confirm password:
<input type="password" name="confirm_password" id="confirm_password" onkeyup='check();' />
<span id='message'></span>
</label>
and here is the fiddle: http://jsfiddle.net/aelor/F6sEv/324/
Using Native setCustomValidity
Compare the password/confirm-password input values on their change event and setCustomValidity accordingly:
function onChange() {
const password = document.querySelector('input[name=password]');
const confirm = document.querySelector('input[name=confirm]');
if (confirm.value === password.value) {
confirm.setCustomValidity('');
} else {
confirm.setCustomValidity('Passwords do not match');
}
}
<form>
<label>Password: <input name="password" type="password" onChange="onChange()" /> </label><br />
<label>Confirm : <input name="confirm" type="password" onChange="onChange()" /> </label><br />
<input type="submit" />
</form>
If you don't want use jQuery:
function check_pass() {
if (document.getElementById('password').value ==
document.getElementById('confirm_password').value) {
document.getElementById('submit').disabled = false;
} else {
document.getElementById('submit').disabled = true;
}
}
<input type="password" name="password" id="password" onchange='check_pass();'/>
<input type="password" name="confirm_password" id="confirm_password" onchange='check_pass();'/>
<input type="submit" name="submit" value="registration" id="submit" disabled/>
Solution Using jQuery
<script src="http://code.jquery.com/jquery-2.1.0.min.js"></script>
<style>
#form label{float:left; width:140px;}
#error_msg{color:red; font-weight:bold;}
</style>
<script>
$(document).ready(function(){
var $submitBtn = $("#form input[type='submit']");
var $passwordBox = $("#password");
var $confirmBox = $("#confirm_password");
var $errorMsg = $('<span id="error_msg">Passwords do not match.</span>');
// This is incase the user hits refresh - some browsers will maintain the disabled state of the button.
$submitBtn.removeAttr("disabled");
function checkMatchingPasswords(){
if($confirmBox.val() != "" && $passwordBox.val != ""){
if( $confirmBox.val() != $passwordBox.val() ){
$submitBtn.attr("disabled", "disabled");
$errorMsg.insertAfter($confirmBox);
}
}
}
function resetPasswordError(){
$submitBtn.removeAttr("disabled");
var $errorCont = $("#error_msg");
if($errorCont.length > 0){
$errorCont.remove();
}
}
$("#confirm_password, #password")
.on("keydown", function(e){
/* only check when the tab or enter keys are pressed
* to prevent the method from being called needlessly */
if(e.keyCode == 13 || e.keyCode == 9) {
checkMatchingPasswords();
}
})
.on("blur", function(){
// also check when the element looses focus (clicks somewhere else)
checkMatchingPasswords();
})
.on("focus", function(){
// reset the error message when they go to make a change
resetPasswordError();
})
});
</script>
And update your form accordingly:
<form id="form" name="form" method="post" action="registration.php">
<label for="username">Username : </label>
<input name="username" id="username" type="text" /></label><br/>
<label for="password">Password :</label>
<input name="password" id="password" type="password" /><br/>
<label for="confirm_password">Confirm Password:</label>
<input type="password" name="confirm_password" id="confirm_password" /><br/>
<input type="submit" name="submit" value="registration" />
</form>
This will do precisely what you asked for:
validate that the password and confirm fields are equal without clicking the register button
If password and confirm password field will not match it will place an error message at the side of confirm password field and disable registration button
It is advisable not to use a keyup event listener for every keypress because really you only need to evaluate it when the user is done entering information. If someone types quickly on a slow machine, they may perceive lag as each keystroke will kick off the function.
Also, in your form you are using labels wrong. The label element has a "for" attribute which should correspond with the id of the form element. This is so that when visually impaired people use a screen reader to call out the form field, it will know text belongs to which field.
function check() {
if(document.getElementById('password').value ===
document.getElementById('confirm_password').value) {
document.getElementById('message').innerHTML = "match";
} else {
document.getElementById('message').innerHTML = "no match";
}
}
<label>password :
<input name="password" id="password" type="password" />
</label>
<label>confirm password:
<input type="password" name="confirm_password" id="confirm_password" onchange="check()"/>
<span id='message'></span>
HTML CODE
<input type="text" onkeypress="checkPass();" name="password" class="form-control" id="password" placeholder="Password" required>
<input type="text" onkeypress="checkPass();" name="rpassword" class="form-control" id="rpassword" placeholder="Retype Password" required>
JS CODE
function checkPass(){
var pass = document.getElementById("password").value;
var rpass = document.getElementById("rpassword").value;
if(pass != rpass){
document.getElementById("submit").disabled = true;
$('.missmatch').html("Entered Password is not matching!! Try Again");
}else{
$('.missmatch').html("");
document.getElementById("submit").disabled = false;
}
}
try using jquery like this
$('input[type=submit]').click(function(e){
if($("#password").val() == "")
{
alert("please enter password");
return false;
}
});
also add this line in head of html
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6/jquery.min.js"></script>
$('input[type=submit]').on('click', validate);
function validate() {
var password1 = $("#password1").val();
var password2 = $("#password2").val();
if(password1 == password2) {
$("#validate-status").text("valid");
}
else {
$("#validate-status").text("invalid");
}
}
Logic is to check on keyup if the value in both fields match or not.
Working fiddle: http://jsfiddle.net/dbwMY/
More details here: Checking password match while typing
<form id="form" name="form" method="post" action="registration.php" onsubmit="return check()">
....
</form>
<script>
$("#form").submit(function(){
if($("#password").val()!=$("#confirm_password").val())
{
alert("password should be same");
return false;
}
})
</script>
hope it may help you
Try this one ;
CSS
#indicator{
width:20px;
height:20px;
display:block;
border-radius:10px;
}
.green{
background-color:green;
display:block;
}
.red{
background-color:red;
display:block;
}
HTML
<form id="form" name="form" method="post" action="registration.php">
<label >username :
<input name="username" id="username" type="text" /></label> <br>
<label >password :
<input name="password" id="password" type="password" id="password" /></label> <br>
<label>confirm password:
<input type="password" name="confirm_password" id="confirm_password" /><span id="indicator"></span> <br>
</label>
<label>
<input type="submit" name="submit" id="regbtn" value="registration" />
</label>
</form>
JQuery
$('#confirm_password').keyup(function(){
var pass = $('#password').val();
var cpass = $('#confirm_password').val();
if(pass!=cpass){
$('#indicator').attr({class:'red'});
$('#regbtn').attr({disabled:true});
}
else{
$('#indicator').attr({class:'green'});
$('#regbtn').attr({disabled:false});
}
});
WITHOUT clicking the button you will have to listen to the change event of the input fields
var confirmField = document.getElementById("confirm_password");
var passwordField = document.getElementById("password");
function checkPasswordMatch(){
var status = document.getElementById("password_status");
var submit = document.getElementById("submit");
status.innerHTML = "";
submit.removeAttribute("disabled");
if(confirmField.value === "")
return;
if(passwordField.value === confirmField.value)
return;
status.innerHTML = "Passwords don't match";
submit.setAttribute("disabled", "disabled");
}
passWordField.addEventListener("change", function(event){
checkPasswordMatch();
});
confirmField.addEventListener("change", function(event){
checkPasswordMatch();
});
then add the status element to your html:
<p id="password_status"></p>
and set the submit button id to submit
... id="submit" />
hope this helps you
$box = $('input[name=showPassword]');
$box.focus(function(){
if ($(this).is(':checked')) {
$('input[name=pswd]').attr('type', 'password');
} else {
$('input[name=pswd]').attr('type', 'text');
}
})
You can check confirm password by only simple javascript
html
<input type="password" name="password" required>
<input type="password" name="confirmpassword" onkeypress="register()" required>
<div id="checkconfirm"></div>
and in javascript
function register() {
var password= document.getElementById('password').value ;
var confirm= document.getElementById('confirmpassword').value;
if (confirm!=password){
var field = document.getElementById("checkconfirm")
field.innerHTML = "not match";
}
}
Also you can use onkeyup instead of onkeypress.
The code proposed by #Chandrahasa Rai
works almost perfectly good, with one exception!
When triggering function checkPass(), i changed onkeypress to onkeyup so the last key pressed can be processed too. Otherwise when You type a password, for example: "1234", when You type the last key "4", the script triggers checkPass() before processing "4", so it actually checks "123" instead of "1234". You have to give it a chance by letting key go up :)
Now everything should be working fine!
#Chandrahasa Rai,
HTML code:
<input type="text" onkeypress="checkPass();" name="password" class="form-control" id="password" placeholder="Password" required>
<input type="text" onkeypress="checkPass();" name="rpassword" class="form-control" id="rpassword" placeholder="Retype Password" required>
#my modification:
<input type="text" onkeyup="checkPass();" name="password" class="form-control" id="password" placeholder="Password" required>
<input type="text" onkeyup="checkPass();" name="rpassword" class="form-control" id="rpassword" placeholder="Retype Password" required>
I think this example is good to check https://codepen.io/diegoleme/pen/surIK
I can quote code here
<form class="pure-form">
<fieldset>
<legend>Confirm password with HTML5</legend>
<input type="password" placeholder="Password" id="password" required>
<input type="password" placeholder="Confirm Password" id="confirm_password" required>
<button type="submit" class="pure-button pure-button-primary">Confirm</button>
</fieldset>
</form>
and
var password = document.getElementById("password")
, confirm_password = document.getElementById("confirm_password");
function validatePassword(){
if(password.value != confirm_password.value) {
confirm_password.setCustomValidity("Passwords Don't Match");
} else {
confirm_password.setCustomValidity('');
}
}
password.onchange = validatePassword;
confirm_password.onkeyup = validatePassword;