is it possible to get javascript to output html where the javascript code is?
For example
<html>
<head>
<title>
</title>
</head>
<body>
<div>header</div>
<div>main
<script type="text/javascript" language="javascript">
// print some html here, maybe google
</script>
</div>
<div>footer</div>
</body>
</html>
Where the end results would look like:
<html>
<head>
<title>
</title>
</head>
<body>
<div>header</div>
<div>maingoogle</div>
</script>
</div>
<div>footer</div>
</body>
</html>
I understand that I can give the containing div and id and then get javascript to insert the anchor take like that, but I just wanted to know if it's possible to do this directly, as in write the html exactly where the javascript is?
Use document.write('YOUR_TEXT') for that
<script type="text/javascript" language="javascript">
document.write('google')
</script>
jsFiddle demo
Yes, although there are a lot of nuances to document.write, it'll output its contents immediately after the calling script element.
warning: document.write will obliterate your DOM once the dom is closed for writing. If you need to call a function asynchronously, you'll have to do DOM manipulation, otherwise document.write will rewrite everything with whatever it's supposed to output. This leads to unintentional results, which is why it's often discouraged.
Related
I have a weird situation where I need to run a script inside of the <title></title> tags. I have no access to any of the others parts of the page, including the <head></head> tags. It has to be within the <title></title> tags (the reason is because we are dealing with an iframe response from a 3rd party server and we don't really have access to the full page.).
What I tried was:
<title>
<script type="javascript">
runMyFunction();
</script>
</title>
The problem is that it interprets the whole thing as a script. Is there anything I could do to tell the browser to run that code as a script and not treat it as a string?
You can't.
Per the HTML5 specification, the only permissible content of the <title> tag is plain text. Other tags, such as <script> tags, cannot be present in the context of a <title>.
<title>[trick</title>
<script type="javascript">
runMyFunction();
</script>
<title>:)]</title>
Everyting between the [] is what you should set as title. Most probably it won't work though, 'cause if I were them I would properly encode whatever string you send, in order not to let you do any tricks...
Can you just rewrite <title> later?
<head>
<title>My Title</title>
<script>
document.title = runMyFunction()
</script>
</head>
So actually i am not much familiar with javascript that's why i am going to post it to know something that i am going to know,
So here it is,
Suppose i have html page and hosted on some where on internet and its coding is,
<html>
<head>
<title>Title of the document</title>
</head>
<body>
The content of the document......</p>
The link of the document ......
</body>
</html>
In this code Link anchor text use for hyperlink, I would like to use javascript that call from another site, where the link exist and it display over there like this.
<script type="text/javascript" src="http://mysite.com/java.js">
I want to know that what code i put on java.js so it show the hyperlink in my html file and how and where do i add code to html page and in javascript
Advance Thanks for help :)
Apologies in advance if I misunderstood your question, but it sounds like you'd like to use JavaScript from another location on your site.
Using the example above, here's what that would look like:
<html>
<head>
<title>Title of the document</title>
</head>
<body>
The content of the document......</p>
The link of the document ......
<script type="text/javascript" src="http://mysite.com/java.js"></script>
</body>
</html>
You could also link to it in the <head> instead, but it's better for performance if the scripts are placed in the footer.
your anchor:
href="javascript:linksomething()"
and js:
function linksomething(){
window.location.href=url;
}
is this what you want?
This question already has answers here:
Why does jQuery or a DOM method such as getElementById not find the element?
(6 answers)
Closed 6 years ago.
Ok. I need fresh eyes because I'm still on this s***d problem for one hour!
Here is my simple HTML code (testssio.html) that include javascript script:
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
var ssio = document.getElementById('ssio');
ssio.html = "it finally works!";
</script>
</head>
<body>
<div id="ssio"></div>
</body>
</html>
But it doesn't work! Using the debugger, I get:
Uncaught TypeError: Cannot set property 'html' of null /testssio/:6
Does anyone get it? I know it's not the correct place to look for debugging help, but I'll be crazy if I don't get it! So please, any help?
Tahnks in advance.
The reason for this is that scripts in the head load before the page is rendered. This means your content is not yet rendered and therefore not a part of document.
If you want to see this work, try moving your script below the element renders, like this:
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<div id="ssio"></div>
<script type="text/javascript">
var ssio = document.getElementById('ssio');
ssio.innerHTML = "it finally works!";
</script>
</body>
</html>
A more standardized way of doing this is with events. Many people use jQuery but it can be done with plain js. This would mean changing your script like this:
<script type="text/javascript">
function WinLoad() {
var ssio = document.getElementById('ssio');
ssio.innerHTML = "It finally works!";
}
window.onload = WinLoad;
</script>
This way you can still leave it in the <head>.
Also, using .html is from jQuery. It is generally used as .html(content). If you want to use the plain javascript version use .innerHTML = content.
I mention jQuery so much because it is a highly used API. This quote is from their site:
jQuery is a fast and concise JavaScript Library that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development. jQuery is designed to change the way that you write JavaScript.
Your code is running too early before the DOM is loaded and thus document.getElementById() doesn't find the element in the document yet.
You can either move your script tag down to right before the </body> tag or you can wait for the DOM to load before running your code with either the window onload event or a DOMReady event.
There are two errors here. First, you need to put the SCRIPT tag after the element. Second, it's not .html, but .innerHTML. So here is the corrected code:
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<div id="ssio"></div>
<script type="text/javascript">
var ssio = document.getElementById('ssio');
ssio.innerHTML = "it finally works!";
</script>
</body>
</html>
you can use something like this
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
document.onload= function(){
var ssio = document.getElementById('ssio');
ssio.html = "it finally works!";
}
</script>
</head>
<body>
<div id="ssio"></div>
I am learning Javascript and I am trying to learn some pretty basic stuff. Basically I have some text in a <p> tag which I want to append to a variable. However it is not working an I'm not sure why. Any help will be greatly appreciated.
<html>
<head>
<script type="text/javascript" src="js/jquery.js"> </script>
<script type="text/javascript">
var x = $('p').html();
document.write(x);
</script>
</head>
<body>
<p class="first">Hello World </p>
</body>
</html>
Wrap your code in $.ready handler:
<script type="text/javascript">
$(function(){
var x = $('p').html();
document.write(x);
});
</script>
The ready handler fires after DOM has loaded and parsed meaning only then you can maipulate tags (or DOM).
You are running your script before The <p class="first">Hello World</p> is reached in your HTML. Put your script in the body instead just after the <p> tag:
<html>
<head>
<script type="text/javascript" src="js/jquery.js"> </script>
</head>
<body>
<p class="first">Hello World</p>
<script type="text/javascript">
var x = $('p').html();
document.write(x);
</script>
</body>
</html>
You can also use jQuery's ready function like some others have said, but that's an inefficient solution since you already know at which point in the document the <p> tag is loaded. It's much better to run your script as soon as it's loaded then to wait for the whole document to load using $.ready.
I can't see anything what isn't working (example)
maybe you should write
jQuery(document).ready(function($){
//your javascript code
})
but if it doesn't work with that either I should remind you that document.write normally replaces the content
I have an HTML page with a typical structure:
<html>
<head>
<script src="..." ></script>
<style>...</style>
</head>
<body>
content
</body>
<script>
var success_callback = function(data) {
// REPLACE PAGE CONTENT & STRUCTURE WITH "data"
}
ajax(url, params, success_callback);
</script>
</html>
Do you think it is possible ? I've already tried to give the html tag an id and doing $(id).replace(data); with no success.
Don't ask me why, but that is what I need (I'm working with a special "mashup builder" site... it is a long story).
EDIT : I forgot to say that scripts in the received content have to be executed, even external scripts included using <script src="...">.
The simplest way is to set the new HTML content using:
document.open();
document.write(newContent);
document.close();
try this with jQuery:
$('body').load( url,[data],[callback] );
Read more at docs.jquery.com / Ajax / load
Here's how to do it in Prototype: $(id).update(data)
And jQuery: $('#id').replaceWith(data)
But document.getElementById(id).innerHTML=data should work too.
EDIT: Prototype and jQuery automatically evaluate scripts for you.
You could try doing
document.getElementById(id).innerHTML = ajax_response
the simplest way is
$("body").html(data);
Can't you just try to replace the body content with the document.body handler?
if your page is this:
<html>
<body>
blablabla
<script type="text/javascript">
document.body.innerHTML="hi!";
</script>
</body>
</html>
Just use the document.body to replace the body.
This works for me. All the content of the BODY tag is replaced by the innerHTML you specify.
If you need to even change the html tag and all childs you should check out which tags of the 'document.' are capable of doing so.
An example with javascript scripting inside it:
<html>
<body>
blablabla
<script type="text/javascript">
var changeme = "<button onClick=\"document.bgColor = \'#000000\'\">click</button>";
document.body.innerHTML=changeme;
</script>
</body>
This way you can do javascript scripting inside the new content. Don't forget to escape all double and single quotes though, or it won't work. escaping in javascript can be done by traversing your code and putting a backslash in front of all singe and double quotes.
Bare in mind that server side scripting like php doesn't work this way. Since PHP is server-side scripting it has to be processed before a page is loaded. Javascript is a language which works on client-side and thus can not activate the re-processing of php code.
I'm assuming you are using jQuery or something similar. If you are using jQuery, then the following should work:
<html>
<head>
<script src="jquery.js" type="text/javascript"></script>
</head>
<body>
content
</body>
<script type="text/javascript">
$("body").load(url);
</script>
</html>