i have problem on sending textbox value from one html page to another html page.
In first page i am sending first name and last name values.and i want to catch this value in textbox on the second page( i.e home.html).but some erroe occurs.
error is :Uncaught TypeError: Cannot set property 'value' of null
how to solve? please tell me.
i know this stupid question.but please tell me guys.i don't know javascript.
this is my html code:
<!DOCTYPE html">
<html>
<head>
<script src="ttt.js"></script>
</head>
<body>
<form method="get" action="home.html" name="ff">
Firstname: <input id="f" type="text" name="firstname1">
Lastname: <input type="text" name="lastname">
<input type="submit">
</form>
</body>
</html>
this is my home.html code:
<!DOCTYPE html">
<html>
<head>
<script src="ttt.js"></script>
<script Language="JavaScript">
var tttt=val();
document.getElementById('text').value=tttt;
</script>
</head>
<body>
<form name="ff">
<input id="text" class="text" type="text" name="MyValue" value="helloS"/>
</form>
</div>
</body>
</html>
this is my javascript code(ttt.js)
function val(){
var link=location.href;
var str=link.split('?');
var str1=str[1].split('&');
var str11=str1[0].split('=');
var str12=str1[1].split('=');
var temp=str11[1]+" "+str12[1];
return(temp);
}
Put your javascript at the end of your html and change document.getElementById('tr') to document.getElementById('text'). You have no element with id tr.
please look at this question and its answers, it is demonstating how to pass value from one html page to another
link
You have to do getElementById('tr') when the dom is ready and ensuring that an element with the ID exists.
Related
When I'm running this code it is not showing me the message which I want to display (i.e: res).Suppose I'm giving an input "$code$".Can anyone just help me out?
<!DOCTYPE HTML>
<html>
<head>
</head>
<body>
<h1>Enter a sample message</h1>
<form>
<input type="text" name="a" id="a">
<button onclick="parse()">submit</button>
<p id="a"></p>
</form>
<script>
function parse(){
var msg=document.getElementById("a").innerHTML;
var res=msg.replace("$code$","1101");
document.getElementById("a").innerHTML=res;//this is to print res.
}
</script>
</body>
</html>
Two elements can't have the same ID. Further, an input element's value can not be obtained using the innerHTML property. Also, on clicking the submit button, the page will reload since the form get's submitted. To prevent that, call the function parse in an onsubmit on the <form> tag, and return false from the function.
<!DOCTYPE HTML>
<html>
<head>
</head>
<body>
<h1>Enter a sample message</h1>
<form onsubmit="return parse();">
<input type="text" name="a" id="a">
<button type="submit">submit</button>
<p id="b"></p>
</form>
<script>
function parse(){
var msg = document.getElementById("a").value;
document.getElementById("b").innerHTML = msg;
return false;
}
</script>
</body>
</html>
Check this:
<form>
<input type="text" name="a" class="input_field" id="a">
<button type="button" onclick="parse()">submit</button>
<p id="a"></p>
</form>
<script>
function parse(){
var msg=document.getElementById("a").innerHTML;
var form = document.getElementsByTagName("form")[0]
msg = form.getElementsByClassName("input_field")[0].value;//this is to print res.
}
</script>
I added type="button" to the button to prevent the form from reloading the page
Iam appending a form from desktop view and adding it to mobile view (including scripts) using append() . Since Iam appending same class name and ID for form elements., on submitting form., it is identifying the mobile layout form and passing empty value on trying to get value using document.getElementsByClassName('txtbox').value.
As per my requirement., I need to give index to identify each form while appending. like document.getElementsByClassName('txtbox')[0].value. I have done an approach for same. But not getting how to increment index value on appneding. I have created plunker for same. Please let me know what I have missed.
Here is the sample code
$(document).ready(function(){
var data = $(".div1").html();
$(".div2").append(data);
$("form").submit(function(){
console.log(document.getElementsByClassName('txtbox').value);
/*console.log(document.getElementsByClassName('txtbox')[0].value);
console.log(document.getElementsByClassName('txtbox')[1].value) ; */
});
});
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css">
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<script src="script.js"></script>
</head>
<body>
<div class="div1">
// data to be copied
<form class="search-container" onsubmit="event.preventDefault();window.open(abc/cde/+'?q='+document.getElementsByClassName('txtbox').value),'_self');">
<input type="text" class="txtbox" id="txtbox" placeholder="enter here...">
<input type="submit" name="submit" /></form>
</div>
<div class="div2">
//data to be appended
</div>
</body>
</html>
You may use $(this).find() to select .txtbox inside the form.
$("form").submit(function() {
console.log($(this).find('.txtbox').val());
return false; // for debugging
});
Also, please note that id should be unique in the documnt.
I have passed form object inside function call and used that param to identify current form.
$(document).ready(function(){
var data = $(".div1").html();
$(".div2").append(data);
});
function submitForm(form){
var txtValue = $(form).find('.txtbox').val();
console.log(txtValue);
}
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css">
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<script src="script.js"></script>
</head>
<body>
<div class="div1">
// data to be copied
<form class="search-container" onsubmit="event.preventDefault();submitForm(this);">
<input type="text" class="txtbox" id="txtbox" placeholder="enter here...">
<input type="submit" name="submit" /></form>
</div>
<div class="div2">
//data to be appended
</div>
</body>
</html>
You can iterate through you class list like so:
var txtboxes = document.getElementsByClassName("txtbox");
for(var i = 0; i < txtboxes.length; i++){
// ... process each element here
$(txtboxes[i]).append(data);
}
I am currently writing a function that writes a bit of code for me based on an input. I am currently working on creating the input and the code that pastes the input, but whenever it writes, it shows up as undefined. This is the code.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Javascript YAML Generator</title>
</head>
<body>
<form class="yamlform" action="index.html" method="post">
<input type="text" name="appname" value="Name">
<button type="submit" onclick="writeAppName()">Submit</button>
</form>
<script type="text/javascript">
var appname = document.getElementsByName("appname").value
function writeAppName() {
document.write(appname)
}
</script>
</body>
</html>
NOTE: This is not my final version of the code, at the moment I just want a system for writing an input value that I can duplicate. Final version will be using document.getElementbyID.
document.getElementsByName returns colection. Use document.getElementsByName("appname")[0].value.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Javascript YAML Generator</title>
</head>
<body>
<form class="yamlform" action="index.html" method="post">
<input type="text" name="appname" value="Name">
<button type="submit" onclick="writeAppName()">Submit</button>
</form>
<script type="text/javascript">
var appname = document.getElementsByName("appname")[0].value
function writeAppName() {
document.write(appname)
}
</script>
</body>
</html>
You need to refer to the first element with name "appname", because it could be a collection. Also I but the assignment for appanme variable inside of the function, this will make it so appname isn't being assigned to "Name" right away and is instead assigned to whatever is in the text box when you click the botton
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Javascript YAML Generator</title>
</head>
<body>
<form class="yamlform" action="index.html" method="post">
<input type="text" name="appname" value="Name">
<button type="submit" onclick="writeAppName()">Submit</button>
</form>
<script type="text/javascript">
function writeAppName() {
var appname = document.getElementsByName("appname")[0].value
document.write(appname)
}
</script>
</body>
</html>
The problem is with your document.getElementsByName
It is possible that multiple elements would have same name.
While using document.getElementsByName, there might be multiple elements instead of a single element present in DOM with similar name, so document.getElementsByName returns an array (a list of elements) and not a single element
To use different elements of the Array, use
document.getElementsByName("appname")[0] // For first element with name
document.getElementsByName("appname")[1] // For second element with name
// and so on
So in your code, you would use
var appname = document.getElementsByName("appname")[0].value;
I have two HTML pages: firstpage.html and secondpage.html. In firstpage.html, there is a form-
firstpage.html:
<!DOCTYPE html>
<html>
<head>
<title>Form Filling</title>
</head>
<body>
<form action="secondpage.html" method="GET">
Enter Serial Number: <input type="number" name="serialNumber" />
<input type="submit" value="Submit" />
</form>
</body>
</html>
The firstpage data is sent to secondpage.html. I want to display and use the form data serialNumber in secondpage.html-
secondpage.html:
<!DOCTYPE html>
<html>
<head>
<title>Display</title>
</head>
<body>
<form name="selva" action="thirdpage.html">
<input type="hidden" name="kumar">
</form>
<script type="text/javascript">
var locate=window.location;
document.selva.kumar.value=locate;
var text=document.selva.kumar.value;
function pass(str)
{
point=str.lastIndexOf('=');
return(str.substring(point+1,str.length));
}
document.write("Serial Number" + pass(text));
</script>
</body>
</html>
So now I can pass the serialNumber variable from firstpage.html to secondpage.html so that the above code in secondpage.html will show the serial nuimber, and I want same serial number in at thirdpage-
thirdpage.html:
<!DOCTYPE html>
<html>
<head>
<title>Repeating</title>
</head>
<body>
<form method="link">
Enter Serial Number2: <input type="number" name="burns" />
<input type="submit" value="Submit" />
</form>
</body>
</html>
please tell how to print a data in all those pages?
The simplest method I could find for this is, write all the three pages in a single html file and display them based on conditions. This way you dont need to use localstorage.
Other method will be to use query parameters. You can simply learn how to use them. Here's the link to simple javascript-handled query params plugin:
http://jillix.github.io/url.js/
You can pass the serial no as a query parameter to another html. If you are confused on how to use this method, let me know and I'll tell you in detail.
I have this text field hidden with HTML hidden code, now when the user enter an invalid input I use javascript to unhide the text field and display an error message, this is what is suppose to happen.
I have seen a lot of css style like
`style.visibility = 'visible';` and `style.display='block';`
But none of them are working for me what happens is that the error text shows for less than a second and then disappears, any one would like to share their thoughts.
This is the complete code for better understanding, it's still not working in firefox and Edge while IE and Chrome wont do anything, in Firefox, it just blinks once on each button press and that about it.
Javascript:
</script>
function validate(){
var firstname = document.getElementById("fn").value;
if (firstname == "") {
document.getElementById("fn").style.visibility = "visible";
document.getElementById("fn").text = "ERROR";
}
}
function init()
{
var formData = document.getElementById("enqForm");
formData.onsubmit = validate;
}
window.onload = init;
</script>
<!DOCTYPE html>
<html lang="en">
<head>
<script src="scripts.js"></script>
</head>
<body>
<form id="enqForm">
<input id="fn" type="text" placeholder="First Name *" />
<input id="sendbutton" type="submit" value="Enquire" />
</form>
</body>
</html>
Instead of changing the style, you can change the form's type attribute.
Using JavaScript - assuming you want to change lnspan to text:
document.getElementById('lnspan').type = 'text';
Style is not the same as the type attribute.
Also there's two id attributes in your <input>, you may want to change that.
**THAT IS THE ANSWER TO YOUR QUESTION**
<html>
<head>
<script>
function newDoc() {
document.getElementById("hid").type="text";
document.getElementById("hid").value="ERROR";
}
</script>
</head>
<body>
<input type="button" value="Load new document" onclick="newDoc()">
<input type="hidden" id="hid" value="">
</body>
</html>
<!--However this makes your error message as text field which is not good.
What you can do is make the Error into embedded into paragraph <p> so the
users cannot change it and it also looks more professional
<!DOCTYPE html>
<html>
<head>
<script>
function newDoc() {
document.getElementById("te").innerHTML="ERROR";
}
</script>
</head>
<body>
<input type="button" value="Load new document" onclick="newDoc()">
<p id="te">
</body>
</html>