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The problem is nothing validates. I can leave the form empty and it gives no alert
<html>
<body>
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
<script type="text/javascript">
function validateForm() {
var x = document.forms["myform"]["fname"].value;
if (x == null || x == "") {
alert("Enter your certificate address first.");
} else if(!x.match(/facebook/g) || !x.match(/access_token/g)) {
alert("Invalid certificate address, please try again...");
return false;
}
)
</script>
<form name="myform" action="welcome.php" method="post" onsubmit="return validateForm();">
Name: <input type="text" name="fname">
<input type="submit" value="submit">
</form>
</body>
</html>
not sure what is wrong with this. looks pretty straitforward
Missing your last end bracket. Changes ) to }
Related
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Closed 5 years ago.
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This is a copy of an HTML document from a tutorial on Javascript. Upon opening it in Chrome, it doesn't behave as intended. When I click the button with Set Cookie written on it, nothing shows up, regardless of whether I have written something in the box (we should get output on the page) or not (we should get an alert). Why?
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
<!--
function WriteCookie()
{
if( document.myform.customer.value == ""){
alert("Enter a name");
return;
}
cookievalue = escape(document.myform.customer.value) + ";";
document.cookie="name=" + cookievalue;
document.write("Setting Cookies : " + document.cookie);
}
//-->
</script>
</head>
<body>
<form name="myform" action ="">
Enter name: <input type="text" name="customer"/>
<input type="button" value="Set Cookie" onlick="WriteCookie();"/>
</form>
</body>
</html>
You have a typo in your input box. It should read:
<input type="button" value="Set Cookie" onClick="WriteCookie();"/>
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Closed 7 years ago.
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i can't seems to validate the percentage.
Need you guys help me to solve!
function validate()
{
s
if( document.myForm.outputPercentage.value <= 0||>=100
{
alert( "Please the correct percentage." );
document.myForm.outputPercentage.focus() ;
return false;
<form name="myForm" onsubmit="return(validate());">
Last output percentage: <input type"text" name="outputPercentage" id="outputPercentage" />&<br/><br/>
<input type="submit" value="Submit" />
I've corrected your code so that it works:
<html>
<head>
<script type="text/javascript">
function validate() {
var outputPercentageString = document.myForm.outputPercentage.value;
var outputPercentage = parseInt(outputPercentageString);
if (outputPercentage <= 0 || outputPercentage >= 100) {
alert("Please the correct percentage.");
document.myForm.outputPercentage.focus();
return false;
}
}
</script>
</head>
<body>
<form name="myForm" onsubmit="return(validate());">
Last output percentage: <input type="text" name="outputPercentage" id="outputPercentage" />%
<br/><br/>
<input type="submit" value="Submit" />
</form>
</body>
</html>
Remove the 's' all on its own.
Everything on a web page is a String, so to compare the percentage to a number you have to use parseInt to make it into a number.
type"text" should be type="text"
if you open a bracket { then you must close it afterwards }
Put the javascript into <script> tags in the <head> element of the page
I've put everything into <html> elements.
Learn what getElementById() does. Everybody uses ids to get references to webpage elements rather than names.
Hope this helps.
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Closed 7 years ago.
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<form name="home" action="" onsubmit="return Validateform();" method="post">
<input type="text" name="receiver" />
<input type="submit" value="send" name="send" />
</form>
What is the javascript to alert if the textbox does not start with 92 on submit?
I recommend you read a JavaScript tutorial. Try here.
To answer your question, this will probably work. If you're wondering why you're getting downvoted - asking people to write your code for you is generally considered bad form, so try not to do this in future. :)
function Validateform(e) {
if (document.getElementsByName('receiver')[0].value.substring(0, 2) !== "92") {
e.preventDefault();
alert("Alert");
}
}
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Closed 9 years ago.
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I work for a nascent online retailer in Ghana, West Africa. We purchased an E-commerce template from Big Commerce. On our website there's a text-field where users are allowed to enter their email addresses and receive newsletters subsequently. Unfortunately, when users enter information, its not seen at the back end. They don't receive the automatic email once they hit enter. i suspect there's something wrong with Javascript code. Please advise:
<script type="text/javascript">
//
$('#subscribe_form').submit(function() {
if($('#nl_email').val() == '') {
// alert('You forgot to type in your email address.');
$('#nl_email').focus();
return true;
}
if($('#nl_email').val().indexOf('#') == -1 || $('#nl_email').val().indexOf('.') == -1) {
//alert('Please enter a valid email address, such as john#example.com.');
$('#nl_email').focus();
$('#nl_email').select();
return true;
}
// Set the action of the form to stop spammers
$('#subscribe_form').append("<input type="hidden" name="check" value="1" />");
return true;
});
</script>
Syntax error here
$('#subscribe_form').append("<input type="hidden" name="check" value="1" />");
Fix:
$('#subscribe_form').append("<input type='hidde' name='check' value='1' />");
Try putting:
$('#subscribe_form').append("<input type="hidden" name="check" value="1" />");
as
$('#subscribe_form').append('<input type="hidden" name="check" value="1" />');
or it will raise an error because of the quotes...
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I want to clear the email input box when function(data) is greater than zero. The user will have to be force to re-enter another email address since the form will not submit if any fields are blank. how would I clear out the input box?
javascript:
$("#email").change(function(){
var email=$("#email").val();
$.ajax({
type:"post",
url:"/files/reg_check.php",
data:"email="+email,
success:function(data){
if(data == 0){
$("#email_msg").html("E-mail Address must be valid");
} else {
$("#email_msg").html("<div class='msg_check_red'>Error: E-mail address already in use.</div>");
}
}
});
});
html:
<label>E-mail:</label>
<input type="email" placeholder="your#email.com" id="email" name="add[email]" size="20" title="A valid email address required" class="{validate:{required:true,email:true}}" />
<span class="rsmall"><div id="email_msg">E-mail Address must be valid</div></span><br />
Use $("#email").val("");, which sets the value of the input to an empty string.