I am running a code for my validatio where i am facing some issues
I have created a function to validate but based upon my html a little bit help is needed
Here it is:
My HTML code look alike
<div class="el-form-item">
<label for="streetAddress" class="el-form-item__label">Street Address</label>
<div class="el-form-item__content">
<div class="el-input">
<input type="text" autocomplete="off" class="el-input__inner validate">
</div>
</div>
</div>
here is the validation Function
function validate(){
var validateElements = document.getElementsByClassName("validate");
var inputs = Array.prototype.filter.call(validateElements,function(element){
return element.nodeName === 'INPUT';
});
for(var i=0; i < inputs.length; i ++ ){
var input = inputs[i];
if(input.value.length == 0){
// generic placeholder
input.placeholder = "kindly enter value";
// error class
input.classList.add("err");
// focus on the input [ optional ]
console.log(input.closest('.el-form-item__label'));
input.closest('.el-form-item__label').classList.add('err'); // error happening here
input.focus();
// break the loop [ optional ]
break;
}
}
}
two things i am trying to do here
i want to cover the label also to red which is defined in the .err class
and also want to place the error just underneath the input element instead of inside the placeholder.
i posted my code code above, please guide
i hope the making this validation function as mixin so i can use in my vueJS app, if anyone can guide with that, would be much much appreciated
i am trying to include inputs first and then plan to bring other form elements with this.
Related
So I know how to do the remove/add class/attribute from a submit button, but I need to be able to apply this to a button based off of entry into an input.
The scenario is this, user enters their email address, but if it's at a specific domain, ex: xxxx#troopers.gov I then want to be able to apply/remove the class, and attribute from the submit button, since this is a domain they are not supposed to enter for a registration.
I have done some similar validation in the past, and tried a few different methods in jQuery .val(), indexOf, etc. But still can't seem to get it working.
I tried something like
var badDomain = 'troopers.gov';
and then
if (!$('#input').val() === badDomain) {
doStuff();
}
but it didn't seem to get me anywhere.
I thought I may be able to do this without using a RegEx (I don't have much experience with that)
Would be nice to be able to account for case as well... and I don't mind if the solution is jQuery, or pure JS... for learning purposes, it would be great to see how I could do it both ways...
So this does what you want, by turning anything typed into the field in lower case and then comparing against a given array of bad strings. Any time the input field blurs, it checks and turns the submit on or off.
Take a look in the code to see some bad addresses for sample use.
var badDomains = [
"troppers.com",
"fooBarBaz.org",
"myReallyUselessDomainName.com",
"a.net"
]
$(function(){
$("#email").on("blur", function(){
var addressBad = false;
var thisEmail = $(this).val().toLowerCase();
for (var i=0; i<badDomains.length; i++){
if (thisEmail.includes(badDomains[i])){
addressBad = true;
}
}
if (addressBad) {
console.log("bad address!")
$(".disabledButton").attr('disabled', "disabled");
} else {
console.log("not a bad address!");
$(".disabledButton").removeAttr("disabled");
}
})
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<label for="email">Email:</label>
<input type="text" name="email" id="email" />
<input class="disabledButton" type="submit" disabled />
</form>
simple workaround :
var email = document.getElementById('email');
var checkEmail = document.getElementById('checkEmail');
checkEmail.onclick = function() {
if ((email.value).includes('#troopers.gov')) alert('This email address cannot be used!');
}
<input id="email">
<button id="checkEmail">Check Email</button>
there are multiple ways around though.
You can use a regex for this purpose.
HTML:
<input type="text" id="InputTest" />
<button id="TestBtn" type="button">
Validate
</button>
<p>
Valid
</p>
CSS:
.valid{
background-color:green;
}
.invalid{
background-color: red;
}
JS:
$("#TestBtn").on("click",function() {
var pattern = /\S+#troopers\.com/gi;
var str = $("#InputTest").val();
var arr = str.match(pattern);
alert(arr); // just to see the value
if(arr !== null){
$("p").addClass("invalid");
}
else{
$("p").addClass("valid");
}
});
Here is a JSFiddle. Basically, if what the user typed in the textbox matches the expression.. then the background color turns red, but if it doesn't match, then the background color turns green.
Let me know if this helps.
You can use the following Regex for the Email property of the related Model in order to accept mails having 'abc.com' suffix:
[RegularExpression("^[a-zA-Z0-9_#./#&+-]+(\\.[a-zA-Z0-9_#./#&+-]+)*#abc.com$",
ErrorMessage = "Please enter an email with 'abc.com' suffix")]
I just started learning JS, Jquery and HTML online. I have a question, and have tried doing things which were told in the answers of similar questions on SO, but it won't help.
I have a password form which only accepts input which have atleast 6 characters, one uppercase letter and one number. I wish to show a custom validation message which could just state these conditions again.
Here's my HTML code -
<div class="password">
<label for="password"> Password </label>
<input type="password" class="passwrdforsignup" name="password" required pattern="(?=.*\d)(?=.*[A-Z]).{6,}"> <!--pw must contain atleast 6 characters, one uppercase and one number-->
</div>
I'm using JS to set the custom validation message.
JS code
$(document).ready(function () {
$('.password').on('keyup', '.passwrdforsignup', function () {
var getPW = $(this).value();
if (getPW.checkValidity() === false) {
getPW.setCustomValidity("This password doesn't match the format specified");
}
});
});
However, the custom validation message doesn't show. Please help. Thank you so much in advance! :)
UPDATE 1
I changed the password pattern to (?=.*\d)(?=.*[A-Z])(.{6,}). Based on 4castle's advise, I realized there were a few errors in my javascript, and changed them accordingly. However, the custom validation message still doesn't show.
JavaScript:
$(document).ready(function () {
$('.password').on('keyup', '.passwrdforsignup', function () {
var getPW = $(this).find('.passwrdforsignup').get();
if (getPW.checkValidity() === false) {
getPW.setCustomValidity("This password doesn't match the format specified");
}
});
});
Again, than you all in advance!
First, update this:
var getPW = $(this).find('.passwrdforsignup').get();
to this:
var getPW = $(this).get(0);
...because $(this) is already the textbox .passwrdforsignup, you can't find it in itself!
The problem with setCustomValidity is, that it does only work once you submit the form. So there is the option to do exactly that:
$(function () {
$('.password').on('keyup', '.passwrdforsignup', function () {
var getPW = $(this).get(0);
getPW.setCustomValidity("");
if (getPW.checkValidity() === false) {
getPW.setCustomValidity("This password doesn't match the format specified");
$('#do_submit').click();
}
});
});
Please note the getPW.setCustomValidity(""); which resets the message which is important because if you do not do this, getPW.checkValidity() will always be false!
For this to work the textbox (and the submit-button) must be in a form.
Working JSFiddle
There are several issues going on here.
The pattern doesn't have a capture group, so technically nothing can ever match it. Change the pattern to (?=.*\d)(?=.*[A-Z])(.{6,})
$(this).value() doesn't refer to the value of the input tag, it's referring to the value of .password which is the container div.
getPW.checkValidity() and getPW.setCustomValidity("blah") are getting run on a string, which doesn't have definitions for those functions, only DOM objects do.
Here is what you should do instead (JS code from this SO answer)
$(document).ready(function() {
$('.passwrdforsignup').on('invalid', function(e) {
var getPW = e.target;
getPW.setCustomValidity("");
if (!getPW.checkValidity())
getPW.setCustomValidity("This password doesn't match the format specified");
}).on('input', function(e) {
$(this).get().setCustomValidity("");
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<div class="password">
<label for="password">Password</label>
<input type="password" class="passwrdforsignup" name="password"
required pattern="(?=.*\d)(?=.*[A-Z])(.{6,})" />
</div>
<input type="submit" />
</form>
I have a very simple piece of Javascript that works perfectly onLoad, but I need it to work onChange.
My script;
<form action="" method="post" name="product_search">
<p><strong>Existing Part Number:</strong>
<input name="v_prodref" type="text" id="v_prodref" size="25" maxlength="25" onChange="searchValue()">
<input type="text" name="prodref" id="prodref">
<input type="submit" name="search_Submit" id="search_Submit" value="Submit">
</p>
<div>
<%=(rs_ProductCheck.Fields.Item("prodref").Value)%>
// <%=(rs_ProductCheck.Fields.Item("proddesc").Value)%></div>
<script>
function searchValue() {
var add = "NW";
var c_ProdRef = document.getElementById('v_prodref');
if(c_ProdRef.search(/GST/i) == -1) {
n_ProdRef = c_ProdRef.concat(add) }
else {
n_ProdRef = c_ProdRef.replace(/GST/i,"NWGST") }
document.getElementById("prodref").value = n_ProdRef;
}
</script>
</form>
So, I enter a part number in the first text box, and I want my javascript to run and enter the new value in the second text box, but it doesn't seem to work.
What am I missing?
search does not exist on an HTMLInputElement. You need to use c_ProdRef.value.search.
(Actually, since you're using it in many places as a string, and never as an input, you probably intended to define c_ProdRef as var document.getElementById('v_prodref').value)
You would've seen this error on load as well.
you want onkeyup if it works perfectly onLoad, and you want to start typing in something in textbox 1 and the javascript to run, you dont want onchange
onchange triggers after blur of focused element
onkeyup triggers after you release a keyboard input
Thanks to everyone for their help. After a little tweaking I have managed to get my code working.
function myFunction() {
var add = "NW";
var c_ProdRef = document.getElementById('v_prodref').value;
if (c_ProdRef.search(/GST/i) == -1) {
n_ProdRef = c_ProdRef.concat(add)
} else {
n_ProdRef = c_ProdRef.replace(/GST/i, "NWGST")
}
document.getElementById("prodref").value = n_ProdRef;
}
Along with #indubitablee suggestion of onKeyup and specifying the .value of my first text field it all works.
I have a form that will submit to a Google search appliance, forming a query string "q".
In the form I have radio buttons and a hidden element; the radio buttons contain options for sites to select; the hidden element contains multiple sites that will allow the user to select multiple site searches.
<input type="radio" id="site_search" name="as_sitesearch" value="www.mycompany.com" checked>Current site<br />
<input type="radio" id="site_search" name="as_sitesearch" value="archive.mycompany.com">Archive site<br />
<input type="radio" id="site_search" name="as_sitesearch" value="">Both sites<br />
<input type="hidden" id="as_oqOption" name="as_oq" value="www.mycompany.com archive.mycompany.com">
This is the Javascript I wrote that will remove the radio element or the hidden element exclusively (one of them can exist in the form submittal):
// IF THE USER CHECKED "BOTH SITES", YOU WILL HAVE TO WIPE OUT THE VALUE OF as_sitesearch TO ALLOW FOR PASSING OF as_oq FOR GOOGLE ENGINE
if (form.elements['as_sitesearch'][0].value.length == 0) {
var goodbyeElement = document.getElementById('site_search');
goodbyeElement.parentNode.removeChild(goodbyeElement);
} else {
var goodbyeElement = document.getElementById('as_oqOption');
goodbyeElement.parentNode.removeChild(goodbyeElement);
}
However, when the form is submitted, "q" winds up obtaining both radio and hidden elements no matter what radio option I click.
Not sure why this is happening as I followed the guides in the DOM tutorial sites I have read on how to remove a form element prior to submittal. Any ideas?
Thanks
Following code may help you:
(form.as_sitesearch[2].checked){
for(var k=0; k<form.as_sitesearch.length;k++){
form.as_sitesearch[k].parentNode.removeChild(form.as_sitesearch[k])
}
}
else{
var goodbyeElement = document.getElementById('as_oqOption');
goodbyeElement.parentNode.removeChild(goodbyeElement);
}
You should call it on form submit. here form is document.form[index];
Got it! Apparently form.elements will always fail because of the grouping, so don't use it..
// IF THE USER CHECKED "BOTH SITES", YOU WILL HAVE TO WIPE OUT THE VALUE OF as_sitesearch TO ALLOW FOR PASSING OF as_oq FOR GOOGLE ENGINE
if (document.getElementById('site_search3').checked) {
for (var i = 1; i <= 3; i++) {
eval('var goodbyeElement = document.getElementById("site_search' + i + '");');
goodbyeElement.parentNode.removeChild(goodbyeElement);
}
} else {
var goodbyeElement = document.getElementById('as_oqOption');
goodbyeElement.parentNode.removeChild(goodbyeElement);
}
I'm dealing with some legacy HTML/JavaScript. Some of which I have control over, some of which is generated from a place over which I have no control.
There is a dynamically generated form with hidden fields. The form itself is generated via a Velocity template (Percussion Rhythmyx CMS) and JavaScript inserts additional hidden form fields. The end result is hidden form fields generated with the same 'name' attribute. The data is being POSTed to Java/JSP server-side code about which I know very little.
I know that form fields sharing the same 'name' attribute is valid. For some reason the POSTed data is not being recognized the back end. When I examine the POST string, the same-name-keys all contain no data.
If I manipulate the code in my dev environment such that only a single input field exists for a given name, the data IS POSTed to the back end correctly. The problem is not consistent, sometimes, it works just fine.
Is there something I can do to guarantee that the data will be POSTed? Can anyone think of a reason why it would not be?
I should really update my answer and post code here, because POST requests without
variable strings indicates the problem is on the client side.
How about this:
<script type="text/JavaScript">
function disableBlankValues()
{
var elements = document.getElementById("form1").elements;
for (var i = 0; i < elements.length; i++)
{
if (elements[i].value == "")
elements[i].disabled = true;
}
}
</script>
<form action="page.php" method="POST" onsubmit="disableBlankValues()" id="form1">
<input type="hidden" name="field1" value="This is field 1."/>
<input type="hidden" name="field1" value=""/>
</form>
EDIT
I now realize the actual problem (multiple variables with the same name should be passed to JSP as an array) and my solution is probably not what the OP is looking for, but I'm leaving it here just in case it happens to help someone else who stumbles upon this post.
you could use something like:
var form = document.getElementById('yourformid');
var elements = form.getElementsByName('repeatedName');
var count = 0;
for(var item in elements){
elements[item].name += count++;
}
this way you will get each hiddenfield with the names:
name0
name1
name2
...
I've worked out a brute-force solution. Note that I'm pretty aware this is a hack. But I'm stuck in the position of having to work around other code that I have no control over.
Basically, I've created an ONSUBMIT handler which examines the form for the repeated hidden fields and makes sure they are all populated with the correct data. This seems to guarantee that the POST string contains data regardless of how the form gets rendered and the Java back end appears to be happy with it as well.
I've tested this in the following situations:
Code generates single instances of the hidden fields (which does happen sometimes)
Code generates multiple instances of the hidden fields
Code generates no instances of the hidden fields (which should never happen, but hey...)
My 'else' condition contains a tiny bit of MooTools magic, but it's otherwise straight-forward stuff.
Maybe someone else will find this useful one day...
Thanks for the help!
<form method="post" name="loginform" id="loginform" action="/login" onsubmit="buildDeviceFP(this);">
<script type="text/javascript">
function insertFieldValues( fields, sValue )
{
if ( 'length' in fields )
{
// We got a collection of form fields
for ( var x = 0; x < fields.length; x++ ) {
fields[x].value = sValue;
}
}
else
{
// We got a single form field
fields.value = sValue;
}
}
function buildDeviceFP( oForm )
{
// Get the element collections for Device Fingerprint & Language input fields from the form.
var devicePrintElmts = oForm.elements.deviceprint;
var languageElmts = oForm.elements.language;
// 'devicePrintElmts' & 'languageElmts' *should* always exist. But just in case they don't...
if ( devicePrintElmts) {
insertFieldValues( devicePrintElmts, getFingerprint() );
} else if ( oForm.deviceprint ) {
oForm.deviceprint.value = getFingerprint();
} else {
$('logonbox').adopt(
new Element( 'input', {'type':'hidden', 'name':'deviceprint', 'value':getFingerprint()} )
);
}
if ( languageElmts) {
insertFieldValues( languageElmts, getLanguage() );
} else if ( oForm.language ) {
oForm.language.value = getLanguage();
} else {
$('logonbox').adopt(
new Element( 'input', {'type':'hidden', 'name':'language', 'value':getLanguage()} )
);
}
}
</script>