how to get content of div in a html from another html - javascript

I have two html file
a.html
<html>
<head>
<script type="text/javascript" src="jquery.js"></script>
</head>
<body>
<div id="content">
hello every one
</div>
</body>
</html>
and another page
<html>
<head>
<script type="text/javascript" src="jquery.js"></script>
</head>
<body>
<div id="result">
</div>
<iframe id="ifr" src="http://example.com/a.html">
</iframe>
<script type="text/javascript">
divv = $('#ifr').contents().find('div#content').clone();
$('#result').html(divv.html());
</script>
</body>
</html>
In second one I try to get first html and get contet div in it.after that I put this value to result div .
but It's not work. How can I do that.

You do not need to use an iframe; you can use ajax to do that. It's very straight forward.
$(function() {
$('#result').load('a.html #content',function()
$(this).html( $('#content').html() );
});
});
EDIT
As evident from comments below, scope of question has changed. The two pages are on different domains without CORS. Therefore the above answer would not work.
In order to use ajax, you may want to create a server-side script to act as a proxy. Then you'll call that script on your server and it will fetch the a.html page for you.

I guess that could be the right way.
var ifr = document.querySelector('#ifr');
var html = ifr.contentDocument.querySelector('div#content').innerHTML;
$('#result').html(html);

Related

How to set real time input value to link through iFrame?

Please see below 2 HTML pages, I have 1 page inside iFrame call other page.
what I exactly need, I want in "iframe.html" you can see text field. when I write something in that input box, real time that value should take inside href=""
Note : iframe.html page is pure html page. I can't use jquery inside that page. I have to access that page from index.html page.
I have tried some jquery code, but only I wrote function.
this is index.html page.
<html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
</head>
<body>
<iframe src="iframe.html" id="myframe"></iframe>
<script type="text/javascript">
$($("#myframe").contents().find('body')).on("click", 'a[href="#editable-link"]', function(e) {
});
</script>
</body>
</html>
And this is "iframe.html" page.
<html>
<head>
<input type="text" placeholder="Enter URL">
Read More
</body>
</html>
can anyone help me to resolve this problem. it will very helpful.
thanks in advance.
Try
$('#myframe').load(function(){
$('#myframe').contents().find('input').bind('input',function(e) {
var url = $('#myframe').contents().find('input').val();
$('#myframe').contents().find('#editable-link').prop('href',url);
});
});

External JavaScript Not Running, does not write to document

I'm trying to use an external JavaScript file in order to write "Hello World" into a HTML page.
However for some reason it does not work, I tried the same function and commands inline and it worked, but not when it's using an external JavaScript file. The part I commented out in the JS file was the previous method I was trying to use. Those lines of could worked when I ran the script from the header, and inline. Thanks
Html file:
<html>
<head>
</head>
<body>
<p id="external">
<script type="text/javascript" src="hello.js">
externalFunction();
</script>
</p>
<script type="txt/javascript" src="hello.js"></script>
</body>
</html>
JavaScript file
function externalFunction()
{
var t2 = document.getElementById("external");
t2.innerHTML = "Hello World!!!"
/*document.getElementById("external").innerHTML =
"Hello World!!!";*/
}
In general, you want to place your JavaScript at the bottom of the page because it will normally reduce the display time of your page. You can find libraries imported in the header sometimes, but either way you need to declare your functions before you use them.
http://www.w3schools.com/js/js_whereto.asp
index.html
<!DOCTYPE html>
<html>
<head>
<!-- You could put this here and it would still work -->
<!-- But it is good practice to put it at the bottom -->
<!--<script src="hello.js"></script>-->
</head>
<body>
<p id="external">Hi</p>
<!-- This first -->
<script src="hello.js"></script>
<!-- Then you can call it -->
<script type="text/javascript">
externalFunction();
</script>
</body>
</html>
hello.js
function externalFunction() {
document.getElementById("external").innerHTML = "Hello World!!!";
}
Plunker here.
Hope this helps.
Script tags with SRC values do not run the contents. Split it to two script tags. One for the include, one for the function call. And make sure the include is before the call.
use onload eventListener to make it simple
<script>
window.onload = function() {
externalFunction();
}
</script>
You're trying to call the function before it has been loaded.
Place the load script above the declaration:
<html>
<head>
<script type="txt/javascript" src="hello.js"></script>
</head>
<body>
<p id="external">
<script type="text/javascript">
externalFunction();
</script>
</p>
</body>
</html>
Also you have a typo:
<script type="txt/javascript" src="hello.js"></script>
Should be:
<script type="text/javascript" src="hello.js"></script>
The script type needs to be "text/javascript" not "txt/javascript".

JavaScript code in iframe

I need to run JavaScript code in iframe. But script with id "us" loaded after creating iframe. How to run this javascript in iframe?
<iframe id="preview">
#document
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
<script id="us" type="text/javascript">
$("#preview").ready(function() {
$(".test").click(function() {
alert(true);
});
});
</script>
</head>
<body>
<style></style>
<div class="test"></div>
</body>
</html>
</iframe>
Thanks in advance.
The IFrame has no access to what's outside of it. Everything inside IFrame is separate page ergo you threat it like so. So you do your document.ready in it.
Example: http://jsfiddle.net/ZTJUB/
// Since this is page you wait until it's loaded
$(function() {
$(".test").click(function() {
alert(true);
});
});
The jQuery instance inside of the iFrame doesn't know it's supposed to be traversing the parent DOM, so therefore it won't know where to look for an element with the id "preview"
As per my comments above, you should attach to the iframe's document.ready, like this:
// Since this is page you wait until it's loaded
$(document).ready(function() {
$(".test").click(function() {
alert(true);
});
});
EDIT:
Just realizing you are probably having an entirely different issue here - Html code as IFRAME source rather than a URL - if you are trying to embed the iframe code inline, you are going to have problems. Take the following code for example:
<html>
<head></head>
<body>
Some stuff here
<iframe id="preview">
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
<script id="us" type="text/javascript">
$(document).ready(function() {
$(".test").click(function() {
alert(true);
});
});
</script>
</head>
<body>
<style></style>
<div class="test">test</div>
</body>
</html>
</iframe>
</body>
</html>
if you render that page in firefox, and then inspect the source in firebug, you'll see:
<html>
<head></head>
<body>
Some stuff here
<iframe id="preview">
<html>
<head></head>
<body></body>
</html>
</iframe>
</body>
</html>
This is happening because the browser isn't expecting to see the code inline between the iframe tags.
Since you're not addressing the questions in the comments to better clarify what you are trying to do... I shall assume you are trying to access content IN your iframe FROM your parent page. Since the other answer should work fine if trying to run it from within the iframe.
On the parent page try something like:
$(function() {
$("#preview").load(function ()
$("#preview").contents().find(".test").click(function() {alert(true);});
});
});
*This assumes both parent and iframe are on the same domain.

Execute JS on page load without using jQuery

So I know that if you use jQuery you can use $(document).load(function(){}); so that any code you write into the function gets executed after the whole page has loaded, but is there a way of doing something similar if you don't use jQuery and just use JS?
For example...
<html>
<head>
<script type="text/javascript">
var box = document.getElementById('box');
alert(box);
</script>
</head>
<body>
<div id="box" style="width:200px; height:200px; background-color:#999;
margin:20px;"></div>
</body>
</html>
If I use this method the alert just says null. So is there a way of making the js code run once the page has loaded?
I use:
<script type="text/javascript">
window.onload = function(){
//do stuff here
};
</script>
This way you don't have to use any onload tags in your html.
The easiest way is to simply put your script at the end of the document, typically just before the closing body tag:
<html>
<head>
</head>
<body>
<div id="box" style="width:200px; height:200px; background-color:#999; margin:20px;"></div>
<script type="text/javascript">
var box = document.getElementById('box');
alert(box);
</script>
</body>
</html>
You can use a variety of methods to accomplish this.
The simplest, easiest method would be to simply add the script tag at the end of your body tag:
<html>
<head>
<title> Example </title>
</head>
<body>
<div>
<p>Hello</p>
</div>
<script type="text/javascript">
// Do stuff here
</script>
</body>
</html>
The way jQuery does it is something similar to:
window.onload = function() {
// Do stuff here
}
I usually just do it the second way, just in case.
To ensure cross-browser compatibility, crawl through the source of jQuery and find what they use.
You can use onload in your body tag.
<head>
<script type="text/javascript">
function doSomething() {
//your code here
}
</script>
</head>
<body onload="doSomething()">

Store contents of a tag in Javascript variable

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

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