I am using an email validation script for my form. I am trying to add a function that returns TRUE if the email field contains certain spammy domains, like "mail.ru" and others... Here's what I have, that's not working. Any help would be appreciated!
Also, any way to expand this to add multiple values to search the email input?
"Email" is the field name in my form.
Thanks, Nick
function DoCustomValidation() {
var frm = document.forms["contactus"];
if (frm.Email.value.includes("mail.ru")) {
sfm_show_error_msg('Sorry, no spam allowed!');
return false;
} else {
return true;
}
}
It should be something like this
function DoCustomValidation() {
var frm = document.forms["contactus"];
var spams = ['mail.ru', 'something.ru']; //Keep spam sites in this array
var i, token = frm.Email.value, hasSpam = false;
for (i = 0; i < spams.length; i++) {
if (token.includes(spams[i])) {
hasSpam = true;
break;
}
}
if (hasSpam) {
sfm_show_error_msg('Sorry, no spam allowed!');
}
return hasSpam;
}
Related
Okay guys, I am trying to use JavaScript to validate a form, and then display a "Thank you" message after its all been validated with correct information. I've got it working to validate the first name, email address, and a radio selection, however I can't seem to get it to validate the state selection, or display the thank you message, but I've also used my browser's(Firefox) Dev Console to dig for syntax errors. None are displayed. Any help?
A small snip of the code is below, and a jsfiddle link to the whole code, plus the HTML is below that.
function validForm() { // reference point
/* first name, email, comments and phone */
var fname = document.form1.fname;
var email = document.form1.email;
var comments = document.form1.comments;
var phone1 = document.form1.phone1;
var phone2 = document.form1.phone2;
var phone3 = document.form1.phone3;
/* collecting the error spans for later use */
var fnErr = document.getElementById('fnErr');
var lnErr = document.getElementById('lnErr');
var emErr = document.getElementById('emErr');
var phErr = document.getElementById('phErr');
var cmErr = document.getElementById('cmErr');
var state = document.getElementById('stErr');
if(fname.value=="") {
fnErr.innerHTML = "We need your name, please.";
fname.focus();
return false;
} else {
fnErr.innerHTML = "";
}
if(email.value=="") {
emErr.innerHTML = "We need your email, please.";
email.focus();
return false;
} else {
emErr.innerHTML = "";
}
if(state.value=="none") {
fnErr.innerHTML = "Please select your state.";
state.focus();
return false;
} else {
fnErr.innerHTML = "";
}
/[A-Z0-9._%+-]+#[A-Z0-9.-]+\.[A-Z]{2,4}/i;
if(isNaN(phone1.value) || isNaN(phone2.value) ||
isNaN(phone3.value)) {
phErr.innerHTML = "If you include a phone number it should be numbers only.";
phone1.select();
return false;
} else {
phErr.innerHTML = "";
}
var notices = document.form1.notices;
var selected;
for(var i=0;i<notices.length;i++) {
if(notices[i].checked) {
selected = notices[i].value;
}
}
/* set up a message for a advert recipient */
var msg = "Thank you, <b>"+fname.value
+"!</b> Your message has been received and one of our representatives will reply to <a href='"
+email.value+"'>"+email.value+"</a> within a day or two. Relax, and enjoy the rest of the site!";
if(selected != undefined) {
document.getElementById('notePref').innerHTML = "";
if (selected == "yes") { // here's where we test the contents of "selected"
document.getElementById('fnlMsg').innerHTML = msg;
} else {
document.getElementById('fnlMsg').innerHTML = "<strong>"+fname.value+"</strong>, thank you for your feedback!";
}
var contactForm = document.getElementById('registerForm').setAttribute('class','hide');
var loseSep = document.getElementsByClassName('spec');
loseSep[0].setAttribute('class', 'hide');
} else {
document.getElementById('notePref').innerHTML = "Please make a selection:";
}
} // reference point
https://jsfiddle.net/xp5e099y/2/
first: you dont have place(div/span/etc) with id ="fnlMsg"
second: you dont have place(div/span/etc) with id ="contactForm"
then change your html
<select name="state">
with
<select id="state">
and your script from this
var state = document.getElementById('stErr');
to
var state = document.getElementById('state');
Here is your culprit 'fnlMsg' element is not defined
if (selected == "yes") { // here's where we test the contents of "selected"
document.getElementById('fnlMsg').innerHTML = msg;
} else {
document.getElementById('fnlMsg').innerHTML = "<strong>"+fname.value+"</strong>, thank you for your feedback!";
}
I am trying to make a javascript validating form, and am a bit stuck on validating drop down inputs (select)
I have been using this so far but am unsure on how to implement the validation to the select options, if anyone could give me some tips that would be great.
Edit: Also, how would I implement email validation, e.g containing #, thanks
Thanks
<input id="firstname" onblur="validate('firstname')"></input>
Please enter your first name
Thanks
http://jsfiddle.net/ww2grozz/13/
you need to handle select as follow
var validated = {};
function validate(field) {
// Get the value of the input field being submitted
value = document.getElementById(field).value;
// Set the error field tag in the html
errorField = field + 'Error';
// Set the success field
successField = field + 'Success';
if (value != '') {
document.getElementById(successField).style.display = 'block';
document.getElementById(errorField).style.display = 'none';
validated[field] = true;
} else {
document.getElementById(successField).style.display = 'none';
document.getElementById(errorField).style.display = 'block';
validated[field] = false;
}
}
function SimulateSubmit() {
// Query your elements
var inputs = document.getElementsByTagName('input');
// Loop your elements
for (i = 0, len = inputs.length; i < len; i++) {
var name = inputs[i].id;
if (!validated[name]) {
// Call validate
validate(name);
// Prevent default
}
}
var all_select = document.getElementsByTagName("select"); // get al select box from the dom to validate
for (i = 0, len = all_select.length; i < len; i++) {
var name = all_select[i].id;
if (!validated[name]) {
// Call validate
validate(name);
// Prevent default
}
}
}
here the Working fiddle
using jQuery function
$('input').on('keyup', function() {
var isValid = $.trim($(this).val()) ? true : false;
// show result field is Valid
});
You must use <form> tag and set your action to it I have done that check this link and I have added select tag and set it to -1 by default for checking purpose while validating
Can someone help me out with validation of two text-box with same email Id.
I was able to pop an alert if both the text-box contain the same email Id via JavaScript(my requirement was both text-box cant have same email) but now I m facing a problem if second text box contain more then one email_Id separated my comma(,) the validation doesn't work.
I don't want email that is present in first text box repeat into second text-box.
My code:
<script language="javascript" type="text/javascript">
function validated() {
if (document.getElementById("<%=txtCountry.ClientID %>").value = document.getElementById("<%=txtnewViewer.ClientID %>").value) {
alert("Presenter cant be attende");
return false;
}Else{
return true;
}
}
</script>
check this code out
<script language="javascript" type="text/javascript">
function validated()
{
if (document.getElementById("<%=textbox1.id %>").value == document.getElementById("<%=textbox2.id %>").value)
{
alert("text-box cant have same email");
return false;
}
else
{
alert("Valid");
return true;
}
}
</script>
Can you try this.
var f_email = document.getElementById("f_email").value;
var s_email= document.getElementById("s_email").value;
if(f_email === s_email) {
// do something when email ids are same.
alert("email ids are same");
}
else {
// do something when email ids are same.
alert("email ids are not same");
}
First, you if statement contains an = who always return true and modify your variable (in place of ==).
function validated() {
var clientId = document.getElementById("<%=txtCountry.ClientID %>").value,
viewerId = document.getElementById("<%=txtnewViewer.ClientID %>").value;
if (clientId == viewerId) {
alert("Presenter cant be attende");
return false;
}
return true;
}
After that you can use : Array.indexOf():
var clients = clientId.split(","), viewers = viewerId.split(",");
// Here we have two arrays with all datas
for(var i = 0; i < clients.length; i++){
var k = viewers.indexOf(clients[i]);
if(k !== -1) {
alert(clients[i], "=", viewers[k]);
}
}
I am using Page_ClientValidate for validations.
It returns false even there is no invalid inputs.
function PageValid() {
var valid = Page_ClientValidate('save');
alert(valid);
if (valid == true) {
$('.mydiv').hide();
}
}
Here 'save' is the validation group. Please help me guys.
Thanks,
Rajbir
Go through ASP.NET Validation in Depth and Java script page validation Page_clientValidate()
The Job of this function is to check the page is it valid if any of
the validator is not valid this function return false otherwise it
return true.
if (Page_ClientValidate()) {
// Page is Ok
//Submit it To The Server
return true
} else {
//Page is Not Valid
//Return False
return false
}
It may possible that you are missing about validation settings on your validator or some other error on js.
You can do manual validation as:
<script type="text/javascript" language="javascript">
/* Manual client-side validation of Validator Groups */
function fnJSOnFormSubmit() {
var isGrpOneValid = Page_ClientValidate("valGrpOne");
var isGrpTwoValid = Page_ClientValidate("valGrpTwo");
var i;
for (i = 0; i < Page_Validators.length; i++) {
ValidatorValidate(Page_Validators[i]); //this forces validation in all groups
}
//display all summaries.
for (i = 0; i < Page_ValidationSummaries.length; i++) {
summary = Page_ValidationSummaries[i];
//does this summary need to be displayed?
if (fnJSDisplaySummary(summary.validationGroup)) {
summary.style.display = ""; //"none"; "inline";
}
}
if (isGrpOneValid && isGrpTwoValid)
return true; //postback only when BOTH validations pass.
else
return false;
}
Ref:
Page_ClientValidate() with multiple ValidationGroups - how to show multiple summaries simultaneously?
Page_ClientValidate is validating multiple times.
I'm trying to have two functions checking each form input, one for onchange() and the other for onkeypress(); my reason for this would be to show if the input was valid once you leave the input field using onchange() or onblur(), and the I also wanted to check if the input field was ever empty, to remove the message indicating that bad input was entered using onkeypress() so that it would update without having to leave the field (if the user were to delete what they had in response to the warning message.)
It simply isn't working the way I intended, so I was wondering if there was something obviously wrong.
My code looks like this:
<form action="database.php" method = post>
Username
<input type='text' id='un' onchange="checkname()" onkeypress="checkempty(id)" />
<div id="name"></div><br>
.....
</form>
And the Javascript:
<script type="text/javascript">
function checkname() {
var name = document.getElementById("un").value;
var pattern = /^[A-Z][A-Za-z0-9]{3,19}$/;
if (name.search(pattern) == -1) {
document.getElementById("name").innerHTML = "wrong";
}
else {
document.getElementById("name").innerHTML = "right!";
}
}
function checkempty(id) {
var temp = document.getElementById(id).value;
if (!temp) {
document.getElementById("name").innerHTML = '';
}
}
</script>
Per your clarification in the comments, I would suggest using the onkeyup event instead of onkeypress (onkeypress only tracks keys that generate characters - backspace does not). Switching events will allow you to validate when the user presses backspace.
Here's a working fiddle.
Edit:
See this SO question for further clarification: Why doesn't keypress handle the delete key and the backspace key
This function should below should check for empty field;
function checkempty(id) {
var temp = document.getElementById(id).value;
if(temp === '' || temp.length ===0){
alert('The field is empty');
return;
}
}
//This should work for check name function
function checkname() {
var name = document.getElementById("un").value;
var pattern = /^[A-Z][A-Za-z0-9]{3,19}$/;
if (!name.test(pattern)) {
document.getElementById("name").innerHTML = "wrong";
}
else {
document.getElementById("name").innerHTML = "right!";
}
}