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How to check all the form fields were given to enable the submit button?

I need to enable the submit button, only when all the Input values were given.
I have a form like the below in my blade file.
<form method="POST" id="contactForm">
<div class="row">
<div class="col-6">
<input type="text" name="name" id="name" value=""/>
<div class="error">Error Message</div>
</div>
<div class="col-6">
<input type="text" name="email" id="email" value=""/>
<div class="error">Error Message</div>
</div>
<div class="col-12">
<textarea name="body" id="message" rows="5"> Enter your message</textarea>
<div class="error">Error message</div>
</div>
<div class="col-12">
<input type="submit" value="Submit" class="primary" id="buttonSubmit" disabled/>
</div>
</form>
Added the required attribute inside the controller.
In controller:
public function store()
{
$data = request()->validate([
'name' => 'required',
'email' => 'required|email',
'body' => 'required',
]);
}
The problem is, even if I add the name field and click the button , the submit button is disabled on click.
The button should be disabled, only when all the input fields were given.
Script:
const button = document.querySelector("#buttonSubmit");
const buttonExpirationDataKey = 'button-disabled-expiration';
button.addEventListener("click", () => {
var form = document.getElementById("contactForm");
var fields = ["name", "email","body"];
var i, l = fields.length;
var fieldname;
for (i = 0; i < l; i++) {
fieldname = fields[i];
if(form[fieldname].value !== ""){
button.disabled = true;
let now = new Date();
let expirationTime = 1000 * 5; // 5 secs to disable the submit button
let expirationDate = new Date(now.getTime() + expirationTime);
localStorage.setItem(buttonExpirationDataKey, expirationDate);
button.dataset.enabledAt = expirationDate;
}
else {
button.disabled = false;
}
return false;
}
});
The for loop iterates over each input element, if the particular input element have a value and then If we click the submit. The button is disabled and stored in the local storage.
How to check all the form input and the textarea has values and then after clicking the submit button, the button should be disabled for 5 secs.
https://jsfiddle.net/1vgzj8oc/
How could I do this? Could anyone please help?

You can simply add the required attributes to the HTML
<input type="text" name="name" id="name" value="" required/>
But if you choose to do it with jS, you can do it this way...
<input type="text" name="name" id="name" value="" class="requiredInput"/>
<input type="submit" value="Submit" class="requiredInput primary" id="buttonSubmit" disabled/>
const requiredInputs = document.querySelectorAll(".requiredInput");
requiredInputs.forEach(function(input) {
// Logic
});

You can add required attribute. added link for reference
[https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/required]
<form method="POST" id="contactForm">
<div class="row">
<div class="col-6">
<input type="text" name="name" id="name" value="" required/>
<div class="error">Error Message</div>
</div>
<div class="col-6">
<input type="text" name="email" id="email" value="" required/>
<div class="error">Error Message</div>
</div>
<div class="col-12">
<textarea name="body" id="message" rows="5" required> Enter your message</textarea>
<div class="error">Error message</div>
</div>
<div class="col-12">
<input type="submit" value="Submit" class="primary" id="buttonSubmit" disabled/>
</div>
</form>

How to collect all value from HTML form?

I'm currently trying to use jQuery to collect information from a HTML form, but I'm stuck.
Every time I console.log payload its empty and didn't capture the input values.
Questions:
Why is payload empty at the end, after I input values into the form?
how to correct it?
Should I use document.ready for this or window.onload?
Please any help is appreciated.
Here is my last attempt jQuery:
$(document).ready(function() {
const ApplyOpeningPayloadBuilder = function() {
let payload = {
"fields": []
};
return {
withKeyValue: function(key, value) {
let param = {};
param.key = key;
param.value = value;
payload.fields.push(param);
return this;
},
withFile: function(key, encoded_data, filename) {
let value = {};
value.encoded_data = encoded_data;
value.file_name = filename;
this.withKeyValue(key, value);
return this;
},
build: function() {
return payload;
}
}
}
let encoded_file = "aGVsbG8gd29ybGQ=";
let apply_for_an_opening_payload_builder = new ApplyOpeningPayloadBuilder();
$(".applicantForm input[type=text]").each(function() {
apply_for_an_opening_payload_builder.withKeyValue(this.name, this.value);
});
$(".applicantForm input[type=email]").each(function() {
apply_for_an_opening_payload_builder.withKeyValue(this.name, this.value);
});
$(".applicantForm input[type=tel]").each(function() {
apply_for_an_opening_payload_builder.withKeyValue(this.name, this.value);
});
$(".applicantForm input[type=url]").each(function() {
apply_for_an_opening_payload_builder.withKeyValue(this.name, this.value);
});
apply_for_an_opening_payload_builder.withFile("resume", encoded_file, "resume.txt");
let payload = apply_for_an_opening_payload_builder.build();
console.log("Log payload:", payload)
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="container" id="json-response">
<div class="form-container">
<div class="header">
<h1>Application form</h1>
</div>
<form action="#" class="applicantForm">
<div class="form-group">
<div class="input-group">
<label for="First Name">First Name <span>*</span></label>
<input type="text" name="First Name">
</div>
<div class="input-group">
<label for="Last Name">Last Name <span>*</span></label>
<input type="text" name="Last Name">
</div>
</div>
<div class="form-group">
<div class="input-group">
<label for="Email">Email <span>*</span></label>
<input type="email" name="Email">
</div>
<div class="input-group">
<label for="Phone">Phone <span>*</span></label>
<input type="tel" name="Phone">
</div>
</div>
<div class="form-group">
<div class="input-group">
<label for="Resume">Resume <span>*</span></label>
<input class="form-control" type="file" name="Resume">
</div>
<div class="input-group">
<label for="LinkedIn Profile">LinkedIn Profile<span>*</span></label>
<input type="url" name="LinkedIn Profile">
</div>
<div class="input-group">
<label for="Website link">Website Link <span>*</span></label>
<input type="url" name="Website link">
</div>
<div class="input-group">
<label for="In lieu of a cover letter, please tell us more about why you are interested in joining the Compass Fellowship?"> In lieu of a cover letter, please tell us more about why you are interested in joining the Compass Fellowship?<span>*</span></label>
<input type="text" name="In lieu of a cover letter, please tell us more about why you are interested in joining the Compass Fellowship?">
</div>
</div>
<button class="submit" type="submit">Apply Now</button>
</form>
</div>
</div>
Here is the structure of how the payload object should look like in the end:
let payload = {
"fields": [
{ "key" : "candidate_first_name", "value" : "John"},
{ "key" : "candidate_last_name", "value" : "Doe"},
{ "key" : "candidate_email", "value" : "john.doe#gmail.com"},
{ "key" : "candidate_phone", "value" : "1234567890"},
{ "key" : "resume", "value": {
"encoded_data" : "aGVsbG8gd29ybGQ=",
"file_name" : "resume.txt"
}
}
]
};
Note the payload structure is from this link, specifically the "Apply for a Opening" section.

You are running all the code at once (document.ready()), instead you need to run it inside form submit, like $('.applicantForm').on('submit', function(e){}).
Check the updated fiddle
var $ = jQuery;
$(document).ready(function() {
const ApplyOpeningPayloadBuilder = function() {
let payload = {
"fields": []
};
return {
withKeyValue: function(key, value) {
let param = {};
param.key = key;
param.value = value;
payload.fields.push(param);
return this;
},
withFile: function(key, encoded_data, filename) {
let value = {};
value.encoded_data = encoded_data;
value.file_name = filename;
this.withKeyValue(key, value);
return this;
},
build: function() {
return payload;
}
}
}
let encoded_file = "aGVsbG8gd29ybGQ=";
$('.applicantForm').on('submit', function(e) {
e.preventDefault();
let apply_for_an_opening_payload_builder = new ApplyOpeningPayloadBuilder();
$(".applicantForm input[type=text]").each(function() {
apply_for_an_opening_payload_builder.withKeyValue(this.name, this.value);
});
$(".applicantForm input[type=email]").each(function() {
apply_for_an_opening_payload_builder.withKeyValue(this.name, this.value);
});
$(".applicantForm input[type=tel]").each(function() {
apply_for_an_opening_payload_builder.withKeyValue(this.name, this.value);
});
$(".applicantForm input[type=url]").each(function() {
apply_for_an_opening_payload_builder.withKeyValue(this.name, this.value);
});
apply_for_an_opening_payload_builder.withFile("resume", encoded_file, "resume.txt");
let payload = apply_for_an_opening_payload_builder.build();
console.log("Log payload:", payload);
})
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<div class="container" id="json-response">
<div class="form-container">
<div class="header">
<h1>Application form</h1>
</div>
<form action="#" class="applicantForm">
<div class="form-group">
<div class="input-group">
<label for="First Name">First Name <span>*</span></label>
<input type="text" name="First Name">
</div>
<div class="input-group">
<label for="Last Name">Last Name <span>*</span></label>
<input type="text" name="Last Name">
</div>
</div>
<div class="form-group">
<div class="input-group">
<label for="Email">Email <span>*</span></label>
<input type="email" name="Email">
</div>
<div class="input-group">
<label for="Phone">Phone <span>*</span></label>
<input type="tel" name="Phone">
</div>
</div>
<div class="form-group">
<div class="input-group">
<label for="Resume">Resume <span>*</span></label>
<input class="form-control" type="file" name="Resume">
</div>
<div class="input-group">
<label for="LinkedIn Profile">LinkedIn Profile<span>*</span></label>
<input type="url" name="LinkedIn Profile">
</div>
<div class="input-group">
<label for="Website link">Website Link <span>*</span></label>
<input type="url" name="Website link">
</div>
<div class="input-group">
<label for="In lieu of a cover letter, please tell us more about why you are interested in joining the Compass Fellowship?"> In lieu of a cover letter, please tell us more about why you are interested in joining the Compass Fellowship?<span>*</span></label>
<input type="text" name="In lieu of a cover letter, please tell us more about why you are interested in joining the Compass Fellowship?">
</div>
</div>
<button class="submit" type="submit">Apply Now</button>
</form>
</div>
</div>

Enable submit button if atleast one field has filled value

Sorry this might be a duplicate Q , but could not find a direct solution easily,
I have gone through SO answer and found , enable submit if all values are filled ,
$(document).ready(function() {
$('.field input').keyup(function() {
var empty = false;
$('.field input').each(function() {
if ($(this).val().length == 0) {
empty = true;
}
});
if (empty) {
$('.actions input').attr('disabled', 'disabled');
} else {
$('.actions input').attr('disabled', false);
}
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class='form'>
<form>
<div class='field'>
<label for="username">Username</label>
<input id="username" type="text" />
</div>
<div class='field'>
<label for="password">Password</label>
<input id="password" type="password" />
</div>
<div class='actions'>
<input type="submit" value="Login" disabled="disabled" />
</div>
</form>
</div>
But how to achieve the same(enable submit) if atleast one field is non-empty

You can try this:
$(document).ready(function() {
$('.field input').keyup(function() {
var hasValue = $('#username,#password').filter((index, input) => input.value.length > 0).length;
$('.actions input').attr('disabled', hasValue ? false : 'disabled');
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class='form'>
<form>
<div class='field'>
<label for="username">Username</label>
<input id="username" type="text" />
</div>
<div class='field'>
<label for="password">Password</label>
<input id="password" type="password" />
</div>
<div class='actions'>
<input type="submit" value="Login" disabled="disabled" />
</div>
</form>
</div>
Update:
$('#username,#password').filter((index, input) => input.value.length > 0).length
This line means we will check the value of the 2 input elements username and password, if all of them don't have any value, the button will be disabled. If you want to check another input element before enabling/disabling, you can add:
$('#username,#password,#input_3,#input_4').filter(...).length
By this way, the button will be disabled when username, password, input_3 and input_4 elements don't have any value. Make sure you have a specific id for each input element.
Update 2:
Checking for both username and password have some value:
var hasValue = $('#username,#password').filter((index, input) => input.value.length > 0).length === 2
Checking for field, field4 and field5 have some value:
var hasValue = $('#field,#field4,#field5').filter((index, input) => input.value.length > 0).length === 3

Use jQuery props method.
$(document).ready(function() {
$(':input[type="submit"]').prop('disabled', true);
$('input').keyup(function() {
if($(this).val() != '') {
$(':input[type="submit"]').prop('disabled', false);
}else{
$(':input[type="submit"]').prop('disabled', true);
}
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class='form'>
<form>
<div class='field'>
<label for="username">Username</label>
<input id="username" type="text" />
</div>
<div class='field'>
<label for="password">Password</label>
<input id="password" type="password" />
</div>
<div class='actions'>
<input type="submit" value="Login" disabled="disabled" />
</div>
</form>
</div>

Another way to go about it:
Store the fields, and create a new collection of them each time a key is pressed, filtering each one by its value.
If the length of our empty fields is the same as the length of all fields, disable the button:
$(document).ready(function() {
var $fields = $('.field input');
$fields.keyup(function() {
var $emptyFields = $fields.filter(function(){
return !this.value;
});
$('.actions input').prop('disabled', $emptyFields.length === $fields.length);
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class='form'>
<form>
<div class='field'>
<label for="username">Username</label>
<input id="username" type="text" />
</div>
<div class='field'>
<label for="password">Password</label>
<input id="password" type="password" />
</div>
<div class='actions'>
<input type="submit" value="Login" disabled="disabled" />
</div>
</form>
</div>
Documentation:
.filter()
.prop()

You could with Jquery.map and Array.find
Jquery.map().get() is get all the input value length with condition.
Array.find will find the any one of the input as valid length of string
Then finally the result will be reversely compare prop('disabled', !filled)
$(document).ready(function() {
$('.field input').keyup(function() {
var res = $('.field input').map(function() {
return $(this).val().length != 0
}).get()
var filled = res.find(a=> a == true)
$('.actions input').prop('disabled', !filled);
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class='form'>
<form>
<div class='field'>
<label for="username">Username</label>
<input id="username" type="text" />
</div>
<div class='field'>
<label for="password">Password</label>
<input id="password" type="password" />
</div>
<div class='actions'>
<input type="submit" value="Login" disabled="disabled" />
</div>
</form>
</div>
Updated with select option
Required field based .Button only enabled after required field 1 and 3 both are filled
$(document).ready(function() {
$('.field input,.field select').on('keyup change',function() {
var res = $('.field input[required],.field select[required]').map(function() {
return $(this).val().trim().length != 0
}).get();
var filled = res.every(a => a == true)
$('.actions input').prop('disabled', !filled);
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class='form'>
<form>
<div class='field'>
<label for="username">Username *</label>
<input id="username" required type="text" />
</div>
<div class='field'>
<label for="password">Password</label>
<input id="password" type="password" />
</div>
<div class='field'>
<label for="password">email *</label>
<input id="password" required type="password" />
</div>
<div class='field'>
<label for="password">select email *</label>
<select required>
<option value="">Select</option>
<option value="1">one</option>
<option value="2">two</option>
</select>
</div>
<div class='actions'>
<input type="submit" value="Login" disabled="disabled" />
</div>
</form>
</div>

You can try this in a simple way, as shown below:
var filled = false;
$('.field input').each(function() {
if ($(this).val().length > 0) {
filled = true;
return; // just add return means break from loop whenever any field is filled.
}
});
if (filled) {
$('.actions input').attr('disabled', false);
} else {
$('.actions input').attr('disabled', 'disabled');
}
});

Focus event not working in HTML form

My HTML code is
<body>
<form name="contactus" id='contactus' action="test1.php" method="post" enctype="multipart/form-data">
<input type="hidden" value="2" name="Tab" id="Tab">
<div class="row underlinDv">
<div class="col-sm-4">
Your Email :
</div>
<div class="col-sm-8">
<input maxlength="100" type="email" class="form-control" placeholder="Enter Email" name="UEmailLogin" id="UEmailLogin" minlength="3">
</div>
</div>
<!--18-->
<div class="row underlinDv">
<div class="col-sm-8 col-md-offset-4">
<input type="submit" id="demo2GetTags" class="btn btn-primary btn-md" value="Submit" onclick='search()' />
</div>
</div>
</form>
<script>
function search() {
var Tab = document.getElementById("Tab").value;
alert(Tab);
var Eamillogin = document.getElementById("UEmailLogin").value;
if (Eamillogin == "") {
alert("please enter email");
Eamillogin.focus();
}
}
</script>
</body>
When I click on submit button, JavaScript alert shows "please enter email". It works fine. But Eamillogin.focus(); not working. After showing alert, the form automatically direct to test1.php page.Pointer not focus on Email. How to correct it?

Eamillogin variable contains the value of the #UEmailLogin element.
To set the focus on the element, use element.focus();
Here's updated code
var Eamillogin = document.getElementById("UEmailLogin"); // Removed .value from here
if (Eamillogin.value === "") { // Added .value here
alert("please enter email");
Eamillogin.focus(); // Focus element
}
function search() {
var Tab = document.getElementById("Tab").value;
var Eamillogin = document.getElementById("UEmailLogin");
if (Eamillogin.value === "") {
alert("please enter email");
Eamillogin.focus();
}
}
<form name="contactus" id='contactus' action="test1.php" method="post" enctype="multipart/form-data">
<input type="hidden" value="2" name="Tab" id="Tab">
<div class="row underlinDv">
<div class="col-sm-4">
Your Email :
</div>
<div class="col-sm-8">
<input maxlength="100" type="email" class="form-control" placeholder="Enter Email" name="UEmailLogin" id="UEmailLogin" minlength="3">
</div>
</div>
<!--18-->
<div class="row underlinDv">
<div class="col-sm-8 col-md-offset-4">
<input type="submit" id="demo2GetTags" class="btn btn-primary btn-md" value="Submit" onclick='search()' />
</div>
</div>
</form>

Prepending only if the div isn't showing?

Basically, I want to prepend a div only if the div I'm prepending isn't already showing.
$(".loginForm").submit(function() {
var username = $("input.username").val();
var password = $("input.password").val();
var errorvisible = $("body").has(".alert.error");
if (!username || !password && errorvisible == false) {
$('body').prepend("<div class=\"error alert\">One or more field(s), have been left empty</div>");
setTimeout(function() {
$('.error.alert').fadeOut('1000', function() {
$('.error.alert').remove();
});
}, 6000);
event.preventDefault();
}
});
At the moment, I'm trying to make it so the jquery will only do the if empty if statement if the error isn't currently visible however it's not working...
<div class="pageCont">
<div class="title">
<h1>LetsChat</h1>
<h4>The new way of interaction.</h4>
</div>
<div class="login box">
<form method="POST" action="#" class="loginForm">
<input type="text" class="loginInput username" placeholder="Aquinas Email or Number" /><br>
<input type="password" class="loginInput password" placeholder="Password" /><br>
<div class="checkBox">
<input type="checkbox" id="checkBoxLink">
<label for="checkBoxLink">Remember Me</label>
Forgotten your password?
</div>
<input type="submit" value="Submit" class="login btn green" />
<input type="reset" value="Clear Fields" class="reset btn green" />
</form>
</div>
<div class="signup box">
<form method="POST" action="#" class="signupForm">
<input type="text" class="signupInput" placeholder="First Name" /><br>
<input type="text" class="signupInput" placeholder="Last Name" /><br>
<input type="text" class="signupInput" placeholder="Aquinas Email" /><br>
<input type="password" class="signupInput" placeholder="Password" /><br>
<input type="submit" class="purple btn signup" value="Sign Up Today!">
</form>
</div>
</div>

The below should work if I'm understanding your question correctly?
$(".loginForm").submit(function() {
var username = $("input.username").val();
var password = $("input.password").val();
var errorvisible = $("body").has(".alert.error").length;
if (!username || !password)
{
if(errorvisible == 0)
$('body').prepend("<div class=\"error alert\">One or more field(s), have been left empty</div>");
setTimeout(function() {
$('.error.alert').fadeOut('1000', function() {
$('.error.alert').remove();
});
}, 6000);
event.preventDefault();
}
});

I have used this type of code many times:
if(!$('#myFancyDiv').is(':visible')) {
//prepend or do whatever you want here
}
BTW just for clarity, this code checks if 'myFancyDiv' is not visible.

You can check whether the .error.alert elements exists, if so don't do anything else create a new one
$(".loginForm").submit(function() {
var username = $("input.username").val();
var password = $("input.password").val();
var errorvisible = $("body").has(".alert.error");
if (!username || !password && errorvisible == false) {
if (!$('.error.alert').length) {
$('body').prepend("<div class=\"error alert\">One or more field(s), have been left empty</div>");
setTimeout(function() {
$('.error.alert').fadeOut('1000', function() {
$(this).remove();
});
}, 6000);
}
event.preventDefault();
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form method="POST" action="#" class="loginForm">
<input type="text" class="loginInput username" placeholder="Aquinas Email or Number" />
<br>
<input type="password" class="loginInput password" placeholder="Password" />
<br>
<div class="checkBox">
<input type="checkbox" id="checkBoxLink">
<label for="checkBoxLink">Remember Me</label>
Forgotten your password?
</div>
<input type="submit" value="Submit" class="login btn green" />
<input type="reset" value="Clear Fields" class="reset btn green" />
</form>