<html>
<head>
<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<script>
$(function blub()
{
var x = $("#content").attr("data-x");
$("#content").append(x);
});
</script>
</head>
<body>
<div id="content">
Link<br/>
</div>
</body>
</html>
leads to "ReferenceError: Can't find variable: blub"
What most likely obvious thing am I missing?
Try this :
function blub()
{
var x = $("#content").attr("data-x");
$("#content").append(x);
}
Instead of using :
$(function blub()
{
var x = $("#content").attr("data-x");
$("#content").append(x);
});
In your code you are calling a function(callback) without declaring it. this is not correct way to declaration a function.
JavaScript Functions
According your code you don't need to do any thing on document ready because your function trigger when anyone click on anchor Link. And the second thing is your code is not correct see this one $("#content").attr("data-x") Here you trying to get the data-x attribute of content div, but your div does not contains that attribute use this $("a").attr("data-x"):
Try the following code:
<html>
<head>
<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<script>
function blub() //-- It's declarition of an function
{
var x = $("a").attr("data-x");
$("#content").append(x);
}
</script>
</head>
<body>
<div id="content">
Link<br/>
</div>
</body>
</html>
Working Example
try this:
<html>
<head>
<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<script>
function blub()
{
var x = $("#content").attr("data-x");
$("#content").append(x);
}
</script>
</head>
<body>
<div id="content">
Link<br/>
</div>
</body>
</html>
The reason you're getting the error is because it can't find the value .attr("data-x"); on the tag <div id="content">. It simply doesn't exist there. If you're looking to append the data-x="12" as a value inside the <div> tag, you could do something like this:
<html>
<body>
<div id="content">
Link
<br/>
</div>
</body>
<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<script>
$(function () {
$('a[data-role="appender"]').click(function (e) {
e.preventDefault();
var x = $(this).data('x');
$('#content').append(x);
});
});
</script>
</html>
The code above attaches the code to the .click function in jQuery and is wired up using the $('a[data-role="appender"]') which makes your mark up a little bit cleaner. Hope this helps out ! The working solution can be found here: http://jsfiddle.net/TrV8z/
The function blub is local to your script because your passed it as an argument to the jQuery object by wrapping your code with $(...);. Your function is executed when the DOM finishes loading, but in a local scope, which you cannot access from an event attribute. The best way to solve your problem would be not to use an event attribute. Moreover, the div #element doesn't have a "data-x" attribute. Its child a element has one. Try this:
$(function() {
$("#targetlink").click(function(e) {
e.preventDefault();
var x = $("#targetlink").attr("data-x");
$("#targetlink").append(x);
})
});
Related
I have a form with a button written in a .asp page and when it's clicked, it calls for a js function. I need to figure a way to debug this using developer tools.
<html>
<head>
<title>Test</title>
<script type="text/javascript">
$(document).ready(function() {
$("#butReport").bind("click", butReport_onClick);
});
function butReport_onClick() {
var cReportOptions = null;
//some code
};
</script>
</head>
<body>
some code.
</body>
</html>
I don't think this has anything to do with classic ASP.
You are missing the jQuery definition in this code, see here https://www.w3schools.com/jquery/jquery_get_started.asp
I added this
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script>
<title>Test</title>
<script type="text/javascript">
$(document).ready(function() {
$("#butReport").bind("click", butReport_onClick);
});
function butReport_onClick() {
var cReportOptions = null;
//some code
console.log("Hello");
};
</script>
</head>
<body>
<div id="butReport">some code.</div>
</body>
</html>
When I click it I get this:
I hope this helps
button written in asp with id="butReport". Using javascript:
<button id="butReport"></button>
<script type="text/javascript">
var elem=document.getElementById('butReport').onclick = function(){
// some code
// test not using console.log();
document.getElementById('hasilnya').innerHTML = 'test';
}
</script>
<div id="hasilnya" style="margin-top:1em;"></div>
I have a Javascript file named loader.js which contains a function called initialize(). I want to call this function via jQuery. This is my HTML file:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="loader.js" ></script>
<script type="text/javascript">
jQuery(document).ready(function() {
jQuery(document).on("click", ".link", function(e) {
e.preventDefault();
var a= $(this).text();
window.initialize= function{
};
initialize(a);
});
});
</script>
</head>
<body >
<h1>welcome to my website </h1>
link1
link2
<div id="main">
</div>
</body>
</html>
This is loader.js:
function initialize(a) {
$('#main').html= a;
}
I do not know what is wrong with this script, I have debug it jquery is working fine but funtion is not working correctly.
also I want that whenever the function is clicked again the div should be refreshed for example first it contain link1 but when link2 is clicked link1 should be removed inside the div how can i accomplish this task????
thanks in advance
You're not including the loader script. Add <script src='loader.js'></script> before the jQuery code.
The code in loader.js should be inside a jQuery(document).ready callback since it's now using jquery (the html method).
Also as #jiihoo pointed out you should use $('#main').html(a); instead of $('#main').html = a;.
You should change to code of loader.js to this.
function initialize(a) {
$('#main').html(a);
}
Heres the whole thing you could do.
Html
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"> </script>
<script src="loader.js"></script>
</head>
<body >
<h1>welcome to my website </h1>
link1
link2
<div id="main"></div>
</body>
</html>
Loader.js
jQuery(document).ready(function() {
jQuery(document).on("click", ".link", function(e) {
e.preventDefault();
var a = $(this).text();
initialize(a);
});
});
function initialize(a) {
$('#main').html(a);
}
I Just can't find the answer to this.
I have a div in my webpage, above on a different layer. I simply want to have a button or tag inside this div which will hide it. I have tried:
<html>
<head>
<script language="javascript">
myFunction()
{
document.getElementById("corporate_background").setAttribute("style", "display:none;");
}
</script>
</head>
<body>
<p>aajhahaksha</p>
<div id="corporate_background">
Close
<P>content...</P>
</div>
</body>
Could someone please show me where I have gone wrong.
Do this:
<html>
<head>
<script language="javascript">
function myFunction()
{
document.getElementById("corporate_background").setAttribute("style", "display:none;");
}
</script>
</head>
<body>
<p>aajhahaksha</p>
<div id="corporate_background">
Close
<P>content...</P>
</div>
</body>
This is just because you didn't define myFunction() as a function .
Next time, open your debugger with F12, and see what it is saying... !
You missed out declaring your function at the beginning
myFunction()
{
document.getElementById("corporate_background").setAttribute("style", "display:none;");
}
You should declare using the keyword function.
function myFunction()
{
document.getElementById("corporate_background").setAttribute("style", "display:none;");
}
You should probably use an event listener on your anchor also instead of using inline javascript. No harm just best practice.
Try this:
<html>
<head>
<script language="javascript">
function myFunction()
{
document.getElementById("corporate_background").style.display='none';
}
</script>
</head>
<body>
<p>aajhahaksha</p>
<div id="corporate_background">
Close
<P>content...</P>
</div>
</body>
</html>
I think what you wanna do is hide the content, so you can hide content like this,
Make the button ;
<button id="btn" name="button">Hide content</button>
By clicking the button it wil hide the div corporate_background
<script>
$(document).ready(function () {
$('#btn').click(function () {
$('#corporate_background').hide();
});
});
</script>
html embedded with javascript
<html>
<head>
<title>Example</title>
<script type ="text/javascript">
have I called this function correctly????
function displayatts()
{
document.getElementById("buttonone").onclick = saysomething;
}
is there something wrong here???
function saysomething()
{
alert("I am 28 years old");
}
</script>
<body>
<input type="button" id="buttonone" value="me" >
</body>
</head>
</html>
Here is the full example.
This will work for sure.
Test it if you want.
Copy and paste the below code into W3Schools test environment, "Edit and Click me" to test.
http://www.w3schools.com/tags/tryit.asp?filename=tryhtml_iframe
<!DOCTYPE html>
<html>
<head>
<title>Example</title>
<script type ="text/javascript">
function saysomething()
{
alert("I am 29 years old");
}
function displayatts()
{
document.getElementById("buttonone").onclick = saysomething;
}
</script>
<body onload="displayatts();">
<input type="button" id="buttonone" value="me" >
</body>
</head>
</html>
Your script runs before the document is parsed.
Therefore, getElementById returns null.
Move the <script> to the bottom.
"have I called this function correctly????"
You haven't called the displayatts() function at all. Add the following to the end of your script:
window.onload = displayatts;
That way displayatts() will be called automatically once the page finishes loading. It will, in turn, setup the click handler on your button.
Also, include the closing </head> tag just before the opening <body> tag.
Demo: http://jsfiddle.net/nnnnnn/rxDXa/
window.onload = displayatts;
Paste this code before </body> tag in your page.So you can be sure if element is null or not or the code is try to work before your html element is rendered.
Hope this helps your situation..
<script>
var element = document.getElementById("buttonone");
if(element){
element.setAttribute("onclick", "saysomething();");
}else
{
alert("element null, move the code to bottom or check element exists");
}
</script>
so I have a few links that have a class of 'button', and I am trying to get their text values with the jQuery .text() function, but it is returning nothing at the moment,
code:
$(document).ready(function() {
var tester = $('a.test').text();
alert(tester);
});
HTML:
<a class='test'>TEST</a>
any idea why this might not be working?
This code works, just try....
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
</head>
<body>
<a class="test">Test</a>
<p></p>
<script>
var string = $("a.test").text();
alert(string);
</script>
</body>
</html>