Suppose an entry is made in a textbox. Is it possible to retain the same entered text in a second text box? If so, how is this done?
<html>
<label>First</label>
<input type="text" name="n1" id="n1">
<label>Second</label>
<input type="text" name="n1" id="n1"/>
</html>
<script>
function sync()
{
var n1 = document.getElementById('n1');
var n2 = document.getElementById('n2');
n2.value = n1.value;
}
</script>
<input type="text" name="n1" id="n1" onkeyup="sync()">
<input type="text" name="n2" id="n2"/>
More efficiently it can be done as :
For the one who will see the post now should use best practices of javascript.
<script>
function sync(textbox)
{
document.getElementById('n2').value = textbox.value;
}
</script>
<input type="text" name="n1" id="n1" onkeyup="sync(this)">
<input type="text" name="n2" id="n2"/>
<html>
<script type="text/javascript">
function copy()
{
var n1 = document.getElementById("n1");
var n2 = document.getElementById("n2");
n2.value = n1.value;
}
</script>
<label>First</label><input type="text" name="n1" id="n1">
<label>Second</label><input type="text" name="n2" id="n2"/>
<input type="button" value="copy" onClick="copy();" />
</html>
Well, you have two textboxes with the same ID. An Id should be unique, so you should prbably change this.
To set the value from one text box to another a simple call to getElementById() should suffice:
document.getElementById("n1").value= document.getElementById("n2").value;
(assuming, of course you give your secodn text box an id of n2)
Tie this up to a button click to make it work.
This worked for me and it doesn't use JavaScript:
<form name="theform" action="something" method="something" />
<input type="text" name="input1" onkeypress="document.theform.input2.value = this.value" />
<input type="text" name="input2" />
</form>
I found the code here
Use event "oninput". This gives a more robust behavior. It will also trigger the copy function when you copy paste.
You can this way also used copy contents of one textbox to another
function populateSecondTextBox() {
document.getElementById('txtSecond').value = document.getElementById('txtFirst').value;
}
<label>Write Here :</label>
<input type="text" id="txtFirst" onkeyup="populateSecondTextBox();" />
<br>
<label>Will be copied here :</label>
<input type="text" id="txtSecond" />
Related
This is a small part of a larger project. Why does it not output the total of the four number and display in the fifth text box?
<body>
<form action="acknolcupcard" method="post" name="CupCard" id="CupCard" target="_self">
<p></p>
<input name="OneH1" type="number" value="0" size="5" maxlength="5" onchange="calc"/>
<input name="OneH2" type="number" value="0" size="5" maxlength="5" onchange="calc"/>
<input name="OneH3" type="number" value="0" size="5" maxlength="5" onchange="calc"/>
<input name="OneH4" type="number" value="0" size="5" maxlength="5" onchange="calc"/>
<label for="S1TotH"></label>
<input type="text" name="S1TotH" id="S1TotH" value="0" size= "10" maxlength= "10"/>
</form>
<script type="text/javascript">
function calc(){
var S1TotH =<br />
document.getElementById('OneH1').value +
document.getElementById('OneH2').value +
document.getElementById('OneH3').value +
document.getElementById('OneH4').value;
document.getElementById('S1TotH').value = S1TotH;
}
</script>
</body>
You need to add id as an attribute:
<input id="OneH1" name="OneH1" type="number" value="0" size="5" maxlength="5" onchange="calc"/>
Also in order to call the method you should create a handler:
<script type="text/javascript">
function calc() {
// This doesn't work since <br/> has no type (e.g. var S1TotH = '<br />')
var S1TotH =<br />
/* This values need to be stored in a variable or used in some way
(e.g. var S1TotH = document.getElementById('OneH1').value + document...). But be careful because in this way you are concatenating the
values, not adding them. If you want to add them you
should convert them to numbers (e.g. parseFloat(document.getElementById('OneH1').value)) */
document.getElementById('OneH1').value +
document.getElementById('OneH2').value +
document.getElementById('OneH3').value +
document.getElementById('OneH4').value;
document.getElementById('S1TotH').value = S1TotH;
}
// use 'input' or 'change' event
document.querySelector('input').addEventListener('input', function () {
calc();
});
</script>
You don't call the function
Mentioning the name of a variable (even if the value of that variable is a function) doesn't call the function.
You need to put (argument, list) after it.
onchange="calc()"
Intrinsic event attributes have a bunch of problems though (e.g this one) and are best avoided.
You could use a delegated event listener instead.
function calc(event) {
const input = event.target;
console.log(input.value);
}
document.querySelector("form").addEventListener("change", calc);
<form>
<input type="number">
<input type="number">
<input type="number">
<input type="number">
</form>
You have no ids
Then it will run, but error, because you are using getElementById without having elements with id attributes.
You are concatenating not adding
Once you fix that, you will still not be adding up the values because + servers double duty as the concatenation operator and values are strings.
You need to convert them to numbers (e.g. with parseFloat).
This code should work, use oninput instead of onchange for live changes reflect, I resolved few other errors too.
<body>
<form action="acknolcupcard" method="post" name="CupCard" id="CupCard" target="_self">
<p></p>
<input name="OneH1" id="OneH1" type="number" value="0" size="5" maxlength="5" oninput="calc()"/>
<input name="OneH2" id="OneH2" type="number" value="0" size="5" maxlength="5" oninput="calc()"/>
<input name="OneH3" id="OneH3" type="number" value="0" size="5" maxlength="5" oninput="calc()"/>
<input name="OneH4" id="OneH4" type="number" value="0" size="5" maxlength="5" oninput="calc()"/>
<label for="S1TotH"></label>
<input type="text" name="S1TotH" id="S1TotH" value="0" size= "10" maxlength= "10"/>
</form>
<script type="text/javascript">
function calc(){
var S1TotH =
document.getElementById('OneH1').value +
document.getElementById('OneH2').value +
document.getElementById('OneH3').value +
document.getElementById('OneH4').value;
document.getElementById('S1TotH').value = S1TotH;
}
</script>
</body>
Above code will concate the values as these are strings values so far so you need to use the parseInt() function if you want to convert it into numbers
I'm trying to create a page similar to https://fonts.google.com/ where a user writes some in the search bar and the text is automatically displayed in different text areas with different fonts.
enter image description here
how can i do this? Ive tried with this:
<input type="text" id="textInput" name="txt" value="Search Fonts..." oninput="copyText()">
<script>
function copyText(){
var text = document.getElementById("textInput");
text.select();
document.execCommand("copy")
document.getElementById('output1').innerHTML=text.value;
}
</script>
However, the text isn't displayed in different areas, only in one, and its is copied too fast (Id like it does after user completely ends writes everything)
How can I improve this? Thanks a lot!
Try this:
<script>
function cloneText(textbox)
{
document.getElementById('n2').value = textbox.value;
document.getElementById('n3').value = textbox.value;
}
function copyText()
{
let sorgent = document.getElementById("s1");
let destination_1 = document.getElementById("d1");
let destination_2 = document.getElementById("d2");
destination_1.value = sorgent.value;
destination_2.value = sorgent.value;
}
</script>
<h2>Copy In RealTime</h2>
<input type="text" name="n1" id="n1" onkeyup="cloneText(this)">
<input type="text" name="n2" id="n2"/>
<input type="text" name="n3" id="n3"/>
<h2>Copy With Button</h2>
<label>Sorgent</label><input type="text" name="s1" id="s1">
<label>Destination 1</label><input type="text" name="d1" id="d1"/>
<label>Destination 2</label><input type="text" name="d2" id="d2"/>
<input type="button" value="copy" onClick="copyText();" />
Since input tags aren't supposed to have closing tags, is there a simple way to extract the text/HTML in between a series of input tags? For example, for the below I want to retrieve <b>Bob and Tim</b><br>Tim <i>after</i> Bob<br>.
<div id="inputs">
<input type="text" value="bob" size="4" />
<b>Bob and Tim</b><br>
<input type="text" value="tim" size="4" />
Tim <i>after</i> Bob<br>
<input type="button" value="get textbox values" id="mybutton" />
</div>
http://jsfiddle.net/gLEZd/5/
I can get the textbox's values, but how do I accomplish the above?
With a minor markup change you can do it easily,
HTML:
<div id="inputs">
<input type="text" value="bob" id="bob" size="4" />
<label for="bob"><b>Bob and Tim</b><br></label>
<input type="text" value="tim" id="tim" size="4" />
<label for="tim">Tim <i>after</i> Bob<br></label>
<input type="button" value="get textbox values" id="mybutton" />
</div>
JS:
$("#mybutton").click( function() {
$.each($('input[type="text"]'), function() {
alert($('label[for=' + this.id + ']').text());
});
});
DEMO
Incase if you don't like label tags, then simply wrap the contents inside a span like below,
<div id="inputs">
<input type="text" value="bob" id="bob" size="4" />
<span><b>Bob and Tim</b><br></span>
<input type="text" value="tim" id="tim" size="4" />
<span>Tim <i>after</i> Bob<br></span>
<input type="button" value="get textbox values" id="mybutton" />
</div>
And in JS,
$("#mybutton").click( function() {
$.each($('input[type="text"]'), function() {
alert($(this).next().text());
});
});
DEMO
already more or less available in the fiddle and stated in the comment. but here also the code for the others directly with a small explanation:
$("#mybutton").click( function() {
var tempContainer = $("#inputs").clone();
tempContainer.find("input").remove();
alert(tempContainer[0].innerHTML);
});
this way the container is cloned and then the inputs get removed from the cloned container... in the end we have an innerHTML without the inputs
Not sure if this is desirable, but you can strip down to text like this:
alert ( $('#inputs').unwrap().text() );
This will also strip your <b></b> and other tags though.
$("#mybutton").click( function() {
var x = $('div#inputs :not(:input)');
$.each(x, function() {
console.log(this.innerHTML);
});
});
UPDATE
$("#mybutton").click( function() {
var x = $('div#inputs :not(:input)').filter(function() {
return this.toString();
});
console.log(x); // x is the array of DOM Object
});
Ideally, if the information is linked to the input element, you should be using <label for="">. Then you could easily access the value which is associated:
<div id="inputs">
<input id="input1" type="text" value="bob" size="4" />
<label for="input1"><b>Bob and Tim</b><br></label>
<input id="input2" type="text" value="tim" size="4" />
<label for="input2 ">Tim <i>after</i> Bob<br></label>
<input type="button" value="get textbox values" id="mybutton" />
</div>
Either:
$("#mybutton").click( function() {
$.each($('input[type="text"]'), function() {
alert($(this).next('label').text());
});
});
Or:
$("#mybutton").click( function() {
$.each($('input[type="text"]'), function() {
alert($('label[for='+this.id+']').text());
});
});
My shopping cart script is intended to check if an article is already in the shopping cart; then the numbers must be filled in the survey.
I work with Javascript. I give the ID number through a position() function.
This is a part of the script where I pick list:
<input type="text" size="2" name="aantalArts_{position()}" id="aantalArts_{position()}"/>
The output:
<input type="text" size="2" value="" name="aantalArts_1" id="test" class="infoButton">
<input type="text" size="2" value="" name="aantalArts_2" id="test" class="infoButton">
<input type="text" size="2" value="" name="aantalArts_3" id="test" class="infoButton">
<input type="text" size="2" value="" name="aantalArts_4" id="test" class="infoButton">
I am just filling the numbers, but how do I deal with the positions?
<script language="javascript" type="text/javascript">
if(document.all.artNr.value = <%=artNrWW%>);{
document.all.aantalArts_??????.value = <%=aantalWW%>;
}
</script>
You are probably looking for the following syntax:
var i = 1; // or whichever
document.all["aantalArts_" + i].value = <% aantalWW %>;
I'm trying to set the value of three different input text fields with an onclick function.
I have an image that has this code...
<img src="images/delete_row.png" width="25" onClick="clearRow(0);" />
And I have three input text fields that all have the id of "0".
When I click my image I want to set the value of all three fields to empty.
Can someone please help me write a function that can do this?
Thanks!
First, you need your id values to be different. You should never have the same ID twice on the same page. So lets use this as the example HTML:
<input type="text" id="name_0" name="name" />
<input type="text" id="phone_0" name="phone" />
<input type="text" id="email_0" name="email" />
You could use this JavaScript function:
<script type='text/javascript'>
function clearRow(id){
var name = document.getElementById('name_' + id),
phone = document.getElementById('phone_' + id),
email = document.getElementById('email_' + id);
// Clear values
name.value = phone.value = email.value = "";
}
</script>
And your img tag would remain unchanged:
<img src="images/delete_row.png" width="25" onClick="clearRow(0);" />
I have three input text fields that
all have the id of "0".
This is entirely wrong. In a document you can't have element with the same id. Either use a name or a classname for these textfields and make their ids different.
<script type="text/javascript">
function Change()
{
var elems = document.getElementsByName ( "myfields");
for ( var i = 0;i < elems.length; i++)
{
elems[i].value = "";
}
}
</script>
<input name="myfields" type="text" id="txt1" />
<input name="myfields" type="text" id="txt2" />
<input name="myfields" type="text" id="txt3" />
<img onclick="Change();" alt="test" src="yourimagpath" />
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script>
$(document).ready(function() {
$('#pic').click(function() {
alert('Clicked on pic - resetting fields')
$('.field').val('')
})
}
</script>
<img id="pic" src="image.png">
<input class="field" value="1">
<input class="field" value="2">
<input class="field" value="4">
<input class="field" value="5">
<input class="field" value="6">
<input class="field" value="7">
<input class="field" value="8">
<input class="field" value="9">
<input class="field" value="10">