I've made a simple test case that is suppose to take the value in the textarea and put it in the div with the id "submit-output" without refreshing, but for some reason it doesn't work.
clicking the submit button doesn't seem to call the postMessage() function, and even reloads the page when I have return false in there at the end.
Can someone please tell me why the submit button is using the default behavior?
<html lang="en">
<head>
<meta charset="utf-8">
<title>Test Case</title>
</head>
<body>
<div id="submit-output">[No output]</div>
<form id="post-form">
<textarea name="post" rows="2" cols="50"></textarea>
<input type=submit value="Submit" id="submitbutton" onclick="postMessage()">
</form>
<script src="http://code.jquery.com/jquery.js"></script>
<script>
$(document).ready(function() {
function postMessage(){
$('#post-form').submit(function(){
console.log("submit");
$('submit-output').html($('#post-form').children('.post').val());
console.log("submitted");
elem.children('.post').val("");
return false;
});
}
});
</script>
</body>
</html>
You shouldn't use the "click" event of a submit button, only the "submit" event of the form.
Also, the $('submit-output') command will try to find a TAG with this name, not the ID, you should use $("#submit-output") instead.
Other important thing: you need to use e.preventDefault() to prevent the event posting the form.
Code working:
<div id="submit-output">[No output]</div>
<form id="post-form">
<textarea id="txtInput" name="post" rows="2" cols="50"></textarea>
<input type="submit" value="Submit" id="submitbutton" />
</form>
Javascript:
$(document).ready(function() {
$("#post-form").submit(function(e) {
e.preventDefault();
$("#submit-output").html($("#txtInput").val());
$("#txtInput").val("");
});
});
DEMO FIDDLE
You don't need onclick="postMessage()" in the input tag, remove that and remove the postMessage() function. Also add event.preventDefault(); like this:
<html lang="en">
<head>
<meta charset="utf-8">
<title>Test Case</title>
</head>
<body>
<div id="submit-output">[No output]</div>
<form id="post-form">
<textarea name="post" rows="2" cols="50"></textarea>
<input type=submit value="Submit" id="submitbutton">
</form>
<script src="http://code.jquery.com/jquery.js"></script>
<script>
$(document).ready(function() {
$('#post-form').submit(function(event){
event.preventDefault();
console.log("submit");
$('#submit-output').html($('#post-form').children('.post').val());
console.log("submitted");
return false;
});
});
</script>
</body>
</html>
`
Test Case
<div id="submit-output">[No output]</div>
<form id="post-form">
<textarea name="post" rows="2" cols="50"></textarea>
<input type=submit value="Submit" id="submitbutton" >
</form>
<script src="http://code.jquery.com/jquery.js"></script>
<script>
$(document).ready(function() {
function postMessage(){
console.log("submit");
$('#submit-output').html($('#post-form').children('.post').val());
console.log("submitted");
elem.children('.post').val("");
return false;
}
$('#post-form').submit(postMessage);
});
</script>
</body>
`
Try this
Related
In the given code , I am trying to print the message but after taking input its not printing any message.
<!DOCTYPE html>
<html>
<head>
<title>CSS</title>
</head>
<body>
<form onsubmit="return Ak()">
<input type="text" name="abinash" placeholder="abinash" required id="q"><br><br>
<input type="submit" name="submit" value="submit">
<div id="w"></div>
</form>
<script type="text/javascript">
function Ak()
{
var y=document.getElementById("q").value;
document.getElementById("w").innerHTML="You have typed this password"+y;
}
</script>
</body>
</html>
Pressing the submit button will refresh the page.
event.preventDefault(); use this keyword.
<script type="text/javascript">
function Ak()
{
var y=document.getElementById("q").value;
document.getElementById("w").innerHTML="You have typed this password"+y;
event.preventDefault();
}
</script>
It was working, but after submitting form, all of content disappeared. You need to add event.preventDefault(); to onsubmit attribute of form:
<!DOCTYPE html>
<html>
<head>
<title>CSS</title>
</head>
<body>
<form onsubmit="event.preventDefault(); return Ak()">
<input type="text" name="abinash" placeholder="abinash" required id="q"><br><br>
<input type="submit" name="submit" value="submit">
<div id="w"></div>
</form>
<script type="text/javascript">
function Ak()
{
var y=document.getElementById("q").value;
document.getElementById("w").innerHTML="You have typed this password"+y;
}
</script>
</body>
</html>
event.preventDefault()
It is working, it's just that when you click that submit button the page reloads. I tried it out, and you can fix it by adding e.preventDefault(); to your function, and put (e) as the arg in the function, like so:
<!DOCTYPE html>
<html>
<head>
<title>CSS</title>
</head>
<body>
<form onsubmit="event.preventDefault(); return Ak()">
<input type="text" name="abinash" placeholder="abinash" required id="q"><br><br>
<input type="submit" name="submit" value="submit">
<div id="w"></div>
</form>
<script type="text/javascript">
function Ak()
{
var y=document.getElementById("q").value;
document.getElementById("w").innerHTML="You have typed this password: "+y;
}
</script>
</body>
</html>
Your code works, but the message will disappear because the form is successfully submitted. If you want it to stay on the screen, just return false from the Ak() function:
<!DOCTYPE html>
<html>
<head>
<title>CSS</title>
</head>
<body>
<form onsubmit="return Ak()">
<input type="text" name="abinash" placeholder="abinash" required id="q"><br><br>
<input type="submit" name="submit" value="submit">
<div id="w"></div>
</form>
<script type="text/javascript">
function Ak()
{
var y=document.getElementById("q").value;
document.getElementById("w").innerHTML="You have typed this password"+y;
return false;
}
</script>
</body>
</html>
Suppose a function trigger on Click button
<!DOCTYPE HTML>
<html lang="en">
<!--getElementsByTagName.html-->
<head>
<title>getElementsByTagName.html</title>
<meta charset="UTF-8"/>
<link rel="stylesheet" type="text/css" href="getElementsByTagName.css"/>
<script type="text/javascript">
//<![CDATA[
function getData(){
inputTag=document.getElementsByTagName("input");
divOutput=document.getElementById("output");
alert(inputTag.length);//length of input Tag
for(i=0;i<inputTag.length-1;i++){
if((inputTag[i].value=="") || (inputTag[i+1].value=="")){
alert("Please Enter Value");
}else{
a=inputTag[i].value;
b=inputTag[i+1].value;
}
}
$("#output").css("display","block");
divOutput.innerHTML="<strong>"+a+"<\/strong>";
divOutput.innerHTML+="<br\/>"+"<strong>"+b+"<\/strong>";
}//end function
//]]>
</script>
</head>
<body>
<form action="">
<fieldset>
<legend>Example getElementsByTagName</legend>
<label>Name</label>
<input type="text" id="txtName"/>
<label for="txtName">Password</label>
<input type="password" id="txtPassword"/>
<button type="button" onclick="getData()">
Submit
</button>
</fieldset>
<div id="output">
</div>
</form>
</body>
</html>
Is this right?? $("#output").css("display","block");
This code not working i.e. after click on submit button it doesn't show the output div?
Add this code:
$( "#output" ).on( "click", function() {
this.css("display", "block");
});
I was asked to develop a web page without a mouse.
The keyboard cursor must be in the input area(example: <input id="input-label" type="text">) immediately when the page is changed.
I tried,
document.querySelector("#input-area").focus();
and
document.querySelector("#input-area").select();
It works with buttons, but does not work in DOMContentLoaded.
document.addEventListener("DOMContentLoaded", function(){
document.querySelector("#input-area").select();
});
How can I solve it?
try this, call it when dom is ready
$(document).ready(function () {
$("#input-area").focus();
});
OR
<input id="input-area" autofocus="autofocus" />
OR
$(function() {
$("#input-area").focus();
});
Try this code:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.3.1.js"></script>
<script>
$(document).ready(function(){
$('#myAnchor').click(function() {
$('#mustfocus').focus();
});
});
</script>
</head>
<body>
<input type="button" id="myAnchor" value="Get focus">
<input type="text" id="mustfocus"/>
</body>
</html>
How about this one which triggers only during DOM is ready:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.3.1.js"></script>
<script>
$(document).ready(function(){
$('#mustfocus').focus();
});
</script>
</head>
<body>
<input type="button" id="myAnchor" value="Get focus">
<input type="text" id="mustfocus"/>
</body>
</html>
I'm trying to get text from a text input, append it to a URL, and go to that URL, using Javascript. But when I submit, it appears to just reload the page.
http://jsfiddle.net/E3vv6/
<html>
<head>
<title>Home</title>
<link rel="stylesheet" href="main.css" />
<script type="text/javascript">
function loadSearchResult(searchToLoad) {
window.location = "https://encrypted.google.com/search?q=" + searchToLoad;
}
</script>
</head>
<body>
<form onsubmit="loadSearchResult(document.getElementById('googleBox').value)" method="post">
<fieldset>
<legend>Search</legend>
<input type="text" id="googleBox">
</fieldset>
</form>
</body>
</html>
You need to use event.preventDefault() in the submit function.
Live Demo (click).
Further, inline js (onsubmit in your html) is bad practice for a lot of reasons. Here are some: https://www.google.com/search?q=Why+is+inline+js+bad%3F
If would be better to get a reference to the form with javascript and attach the event listener.
<form id="myForm">
<input type="submit" value="Submit">
</form>
JavaScript:
var myForm = document.getElementById('myForm');
myForm.addEventListener('submit', function(e) {
myFunction();
e.preventDefault();
});
function myFunction() {
console.log('submitted!');
}
You need to prevent the default behaviour of the onsubmit.
You could use return false:
<html>
<head>
<title>Home</title>
<link rel="stylesheet" href="main.css" />
<script type="text/javascript">
function loadSearchResult(searchToLoad) {
window.location = "https://encrypted.google.com/search?q=" + searchToLoad;
return false;
}
</script>
</head>
<body>
<form onsubmit="return loadSearchResult(document.getElementById('googleBox').value)" method="post">
<fieldset>
<legend>Search</legend>
<input type="text" id="googleBox">
</fieldset>
</form>
</body>
</html>
So in HTML 5, you can set buttons outside of a form to point to that form by using the form attribute. Is there a way to do this in Javascript? I need all references to this.form to point to a form somewhere else on the page. I've already tried:
<input type="button" onclick="this.form = document.forms['MyForm']; this.form.name.value = 'Blah' />
But with no success. Is there a way to do this?
Each of your form elements should have a unique ID, so you can change the value of the element without referencing the form, like this:
document.getElementById('your_field_id').value = 'Blah';
To submit the form, use document.forms:
document.forms['MyForm'].submit();
<input type="button" onclick="submitForm()" />
function submitForm() {
document.forms["myform"].submit();
}
What about something like this using jquery?
<html>
<head>
<title>Test Form</title>
</head>
<body>
<form>
<input type="text" id="test" />
<input type="submit" value="Submit" />
</form>
<input type="button" id="button" value="button" />
<script type="text/javascript">
$("#button").click(function(){
$("#test").val("Hello World!");
});
</script>
</body>
</html>