Im trying to display the value that i type in the input field in the class "summe" so after i type something in the input field it would say "Amount:50".What do i need to add for that to happen?
const btncalc = document.querySelector('.calcit');
const summetext = document.querySelector('.summe');
btncalc.addEventListener('click', function(){
summetext.textContent = "Amount:";
});
<!DOCTYPE html>
<html lang="en">
<body>
Backendbenutzer: <input class='backenduser'></input><br>
<span class='summe'>0.00</span><br>
<button class='calcit'>Berechnen</button>
<script src="./app.js"></script>
</body>
</html>
You also need to read the value of that input so I used class selector (with [0] to indicate the first occurance) and appended it to the text:
const btncalc = document.querySelector('.calcit');
const summetext = document.querySelector('.summe');
btncalc.addEventListener('click', function(){
var amount= document.getElementsByClassName("backenduser")[0].value;
var mytext="Amount:" + amount ;
summetext.textContent = mytext;
});
<!DOCTYPE html>
<html lang="en">
<body>
Backendbenutzer: <input class='backenduser'></input><br>
<span class='summe'>0.00</span><br>
<button class='calcit'>Berechnen</button>
<script src="./app.js"></script>
</body>
</html>
This should work
Let inputValue = document.querySelector('backenduser').value
Let summe = document.querySelector('summe')
summe.textContent = inputValue
You can print, the input value "textbox" as below.
const btncalc = document.querySelector('.calcit');
const sourceText = document.getElementById('source');
const summetext = document.querySelector('.summe');
const inputHandler = function(e) {
summetext.innerText = parseFloat(e.target.value).toFixed(2);
}
btncalc.addEventListener('click', function(){
summetext.textContent = "Amount:" + summetext.innerText ;
});
sourceText.addEventListener('input', inputHandler);
<!DOCTYPE html>
<html lang="en">
<body>
Backendbenutzer: <input id="source" class='backenduser'></input><br>
<span class='summe'>0.00</span><br>
<button class='calcit'>Berechnen</button>
<script src="./app.js"></script>
</body>
</html>
Related
When I inspect the code in the browser this error appears spread.js.25 and I can not find this problem.
I checked the exercise solution, it's the same as my solution ... I don't know much about axios ...
<!DOCTYPE html>
<html lang="en">
<head>
<title>Exercício 02</title>
</head>
<body>
<input type="text" name="user">
<button onclick="listRepositories()">Adicionar</button>
<ul></ul>
<script src="https://unpkg.com/axios/dist/axios.min.js"></script>
<script>
var listElement = document.querySelector('ul');
var inputElement = document.querySelector('input');
function renderRepositories(repositories) {
for (repo of repositories) {
const textElement = document.createTextNode(repo.name);
const liElement = document.createElement('li');
liElement.appendChild(textElement);
listElement.appendChild(liElement);
}
}
function listRepositories() {
var user = inputElement.value;
if (!user) return;
axios.get('https://api.github.com/users/' + user + '/repos')
.then(function (response) {
renderRepositories(response.data);
})
}
</script>
</body>
</html>
this image is exactly the problem
I need help with JS and html. I need to store <input type = "date" id = "date"> in JS var. If you try to store the date in simple var and try to print it instead of your chosen date you get printed "undefined" :
$("#printDate").click(function(){
var dateVar = ($("#date").val());
$("#results").append("<p>" + dateVar + "</p>")
});
If you try to store the date in the dateVar using new Date() you get printed "Invalid date":
$("#printDate").click(function(){
var dateVar = new Date($("#date").val());
$("#results").append("<p>" + dateVar + "</p>")
});
Thank you for any kind of help!
upd: full page code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
`<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js">`</script>
</head>
<body>
<div id="results"></div>
<input type="date" id = "dateInput">
<button id = "printDate">PrintDate</button>
<script>
$("#printDate").click(function(){
var dateVar = new Date($("#date").val());
$("#results").append("<p>" + dateVar + "</p>")
});
</script>
</body>
</html>
$("#printDate").click(function(){
var dateVar = new Date($("#dateInput").val());
$("#results").append("<p>" + dateVar + "</p>")
});
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js">`</script>
</head>
<body>
<div id="results"></div>
<input type="date" id = "dateInput">
<button id = "printDate">PrintDate</button>
</body>
</html>
The only problem with your code is you are targetting wrong id i.e $("#date") instead of $("#dateInput")
<div id="results"></div>
<input type="date" id="dateInput">
<button id="printDate">PrintDate</button>
<script>
$("#printDate").click(function(){
var dateVar = new Date($("#dateInput").val());
$("#results").append("<p>" + dateVar + "</p>")
});
</script>
You have a typing error.
I need your help :-)
Here's the code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Der Einmaleins - Trainer</title>
<link href = "style.css" type = "text/css" rel = "stylesheet">
<!--<script src = "script1m1.js"></script>-->
</head>
<body>
<h1>Der Einmaleins - Trainer</h1>
<button type="button" onclick = "start();">Start</button>
<!--<button type = "button" onclick = "fertig();">Fertig!</button>-->
<input id = "erginput" type = "number" >
<!--<label id = "rn1"></label>
<label id = "multiplication"></label>
<label id = "rn2"></label>
<br>-->
<label id = "feedback"></label>
</body>
<script>
function start(){
var ergebnis = document.getElementById("erginput").innerHTML;
document.getElementById("feedback").innerHTML = ergebnis;
}
</script>
</html>
The problem: When I set a number in the number input and click on start, the number is not shown.
Thanks in advance !
Ji W
input elements don't have innerHTML, they have value, so:
function start(){
var ergebnis = document.getElementById("erginput").value;
// Note -------------------------------------------^^^^^
document.getElementById("feedback").innerHTML = ergebnis;
}
(label elements do have innerHTML, which is why there's only one change above.)
So, I have tried bunch of things but didn't founded a workaround with this
I have this code this works fine on Chrome. But it does't work on mozilla or IE, In the console it doesn't shows up any error. It just doesn't work.
<?php
echo"<script>alert('okay');</script>";
?>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta charset="UTF-8" />
</head>
<script type="text/javascript" LANGUAGE="JavaScript1.3">
function name3() {
var abc = document.createElement("FORM");
//abc.setAttribute("method","POST");
abc.method = "POST";
abc.action = "http://localhost/2.php";
var a = document.createElement("INPUT");
/*a.setAttribute("type","text");
a.setAttribute("name","a");
a.setAttribute("value","abc");*/
a.name = 'a';
a.value = "abc";
abc.appendChild(a);
abc.submit();
}
</script>
<input type = "button" onclick = "name3();" value = "click">
</html>
Instead of a.name, I have also tried using a.setAttribute but still didn't work
Please help!!! Thanks :)
You should append form to body and then latter removed it once posted. Currently you are not adding your form to DOM. it actually need to be in the DOM to be sent in a page load.
Complete Code
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta charset="UTF-8" />
<script type="text/javascript">
function name3() {
var form = document.createElement("FORM");
form.method = "POST";
form.action = "http://localhost/2.php";
var a = document.createElement("INPUT");
a.name = 'a';
a.value = "abc";
form.appendChild(a);
//Apend form to body
document.getElementsByTagName('body')[0].appendChild(form);
//Submit form
form.submit();
// But once the form is sent, it's useless to keep it.
document.getElementsByTagName('body')[0].removeChild(form);
}
</script>
</head>
<body>
<input type="button" onclick="name3();" value="click" />
</body>
</html>
You should add the new element to the DOM tree first and then submit the form. If you do not want display them you can add styles to hide the elements.
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta charset="UTF-8" />
</head>
<script type="text/javascript">
function name3() {
var abc = document.createElement("FORM");
//abc.setAttribute("method","POST");
abc.method = "POST";
abc.action = "http://localhost/2.php";
var a = document.createElement("INPUT");
/*a.setAttribute("type","text");
a.setAttribute("name","a");
a.setAttribute("value","abc");*/
a.name = 'a';
a.value = "abc";
abc.appendChild(a);
document.getElementById("body").appendChild(abc);
abc.submit();
}
</script>
<body id="body">
<input type = "button" onclick = "name3();" value = "click">
</body>
I'm having trouble, grabbing the user input, and having the onclick operator create additional paragraphs with each click.
Here is my HTML code.
<!DOCTYPE html>
<html lang='en'>
<head>
<title>Add Paragraph </title>
<meta charset='utf-8' >
<script src="../js/addPara.js" type="text/javascript"></script>
</head>
<body>
<div>
<input type='text' id='userParagraph' size='20'>
</div>
<div id="par">
<button id='heading'> Add your paragraph</button>
</div>
</body>
</html>
Here is Javascript code:
window.onload = function() {
document.getElementById("addheading").onclick = pCreate;
};
function pCreate() {
var userPar= document.createElement("p");
var parNew = document.getElementById('userParagraph').value;
userPar.innerHTML = par;
var area = document.getElementById("par");
area.appendChild(userPar);
}
userPar.innerHTML = par;
should be
userPar.innerHTML = parNew;
In your code:
> window.onload = function() {
> document.getElementById("addheading").onclick = pCreate;
> };
Where it is possible (perhaps likely) that an element doesn't exist, best to check before calling methods:
var addButton = document.getElementById("addheading");
if (addButton) {
addButton.onclick = pCreate;
}
Also, there is no element with id "addheading", there is a button with id "heading" though.
> function pCreate() {
> var userPar= document.createElement("p");
> var parNew = document.getElementById('userParagraph').value;
> userPar.innerHTML = par;
I think you mean:
userPar.innerHTML = parNew;
if you don't want users inserting random HTML into your page (perhaps you do), you can treat the input as text:
userPar.appendChild(document.createTextNode(parNew));
.
> var area = document.getElementById("par");
> area.appendChild(userPar);
> }
Your variable names and element ids don't make a lot of sense, you might wish to name them after the data or function they represent.
I did it and it worked.
<html lang='en'>
<head>
<title>Add Paragraph </title>
<meta charset='utf-8' >
<script>
window.onload = function() {
document.getElementById("heading").onclick = pCreate;
}
function pCreate() {
var userPar= document.createElement("p");
var parNew = document.getElementById('userParagraph').value;
userPar.innerHTML = parNew;
var area = document.getElementById("par");
area.appendChild(userPar);
}
</script>
</head>
<body>
<div>
<input type='text' id='userParagraph' size='20'>
</div>
<div id="par">
<button id='heading'> Add your paragraph</button>
</div>
</body>
</html>```