I need to get the object of second level html element in my page.
<html>
<div id="out">
jasoidjisa
<html>
<head>//This object
<div id="in">
hihisdhi
</div>
</head>
</html>
</div>
<script>
alert(document.getElementsByTagName('html'));
</script>
Help me to access this html element via js
HTML is a reserved tag name and so you can't use it in the manner in which you have used it here. Which particular value from above are you trying to get exactly ? It might make sense to use the <div> tag with a class or I'd to identify it instead. If you specify which value you are specifically looking to get I can write up a theoretical solution.
vsank7787 was totally correct. Maybe you could use iFrames instead of nested html inside a HTML document since html is a reserved keyword.
Related
I have a situation with sample code as follows:
<html>
<head>
<title>Untitled Document</title>
</head>
<body>
<p>
<h1>The header</h1>
<div>
matter ia always matter matter ia <strong>bold matter</strong> matter matter <em>italics matter</em>matter ia <em><strong>bold italics matter</strong></em>lways matter
</div>
</p>
</body>
</html>
I am just trying to retrieve the specific tags like body->p->div->em->strong when I click on "bold italics matter" using jQuery. Is there any standard method to retrieve as per the click event?
If you wan to get the tag name of the element which is clicked, then you can use:
$('*').click(function(e) {
e.stopPropagation();
console.log($(this).prop('tagName'));
});
Fiddle Demo
I'm not completely sure about what you are trying to accomplish. If you are trying to retrieve the tag itself that the text is contained in, i would recommend that you put a <span> tag in around the the text in question and do an onclick="function()" or simply put the onclick right on the <strong> tag.
As far the the JQuery/Javascript goes, if you want to retrieve the content, it looks like
var foo = document.getElementById.innerHTMl("id");
However, this requires you to have an id in your tags which is probably the best, if not
'standard' method of retrieving the content that is within the tag.
After reading your comments, i am editing this post:
The best way to get the parent elements is to use the JQUery .parent() function. I'd imagine that you would just recursively state something like this:
var foo = $("nameofelement").parent();
I hope this is more of what your looking for.
Thanks for contributing everybody. At last I made it myself with the following code.
$(document.body).click(function(e){
var Tags=[], Target=e.target, stat_msg="";
Tags.push(Target.tagName);
while($(Target).parent().get(0).tagName!=="BODY")
{
Tags.push($(Target).parent().get(0).tagName);
Target=$(Target).parent();
}
Tags.push("BODY");
for(i=Tags.length;i>0;i--)
stat_msg=stat_msg+Tags[i-1]+" ";
alert(stat_msg);
});
I am in the process of AJAX-ing a WordPress theme with a persistent music player. Wordpress uses dynamic classes on the <body> tag. The basic structure is as follows:
<html>
<head>
</head>
<body class="unique-class-1 unique-class-2 unique-class-3">
<div id="site-container">
<nav class="nav-primary">
Other Page 01
Other Page 02
</nav>
<div class="site-inner">
<p>Site Content Here</p>
</div>
</div>
<div id="music-player"></div>
</body>
</html>
I am currently successfully loading the content of /other-page-01/, /other-page-02/, etc, using load('/other-page-01/ #site-container'). However, I need to extract all <body> classes from the AJAX loaded page and replace the current page's <body> classes with them dynamically.
Note: Replacing the entire <body> element is not an option due to the persistent <div id="music-player">. I've tried jQuery.get(), but couldn't get it to work.
How do I extract the <body> classes from the AJAX requested page and replace the current page's <body> classes with them?
I am not very familiar with jQuery or Javascript, so the exact code would be extremely helpful. Any help is greatly appreciated.
Thanks,
Aaron
My typical solution would have been to tell you to throw the AJAX code in to a jQuery object and then read it out like normal:
$(ajaxResult).attr('class');
Interestingly though, it appears you can't do this with a <body> element.
I'd say the easiest solution (if you have control over the resulting HTML) is to just use some good ol' regex:
var matches = ajaxResult.match(/<body.*class=["']([^"']*)["'].*>/),
classes = matches && matches[1];
I say "if you have control over the resulting HTML", because this relies on the HTML being reasonably well formed.
The other method would involve parsing it as a DOMDocument and then extracting what you need, but this would take a lot more and is usually overkill in simple cases like this.
Convert the body within your returned html to a div with a specific ID, then target that id to get the classes of the body (which is now a div.)
modifiedAjaxResult = ajaxResult.replace(/<body/i,'<div id="re_body"')
.replace(/<\/body/i,'</div');
$(modifiedAjaxResult).filter("#re_body").attr("class");
Of course, if the body has an id, this will conflict with it, so an arbitrary data attribute might be less likely to break.
modifiedAjaxResult = ajaxResult.replace(/<body/i,'<div data-re-id="re_body"')
.replace(/<\/body/i,'</div');
$(modifiedAjaxResult).filter("[data-re-id=re_body]").attr("class");
http://jsfiddle.net/N68St/
Of course, to use this method, you'll have to switch to using $.get instead.
$.get("/other-page-01/",function(ajaxResult){
var modifiedAjaxResult = ajaxResult.replace(/<body/i,'<div data-re-id="re_body"')
.replace(/<\/body/i,'</div');
alert($(modifiedAjaxResult).filter("[data-re-id=re_body]").attr("class"));
// the following line replicates what `.load` was doing.
$(someElement).append( $("<div>").html(ajaxResult).find("#site-container") );
});
In case, I already link to CSS with the same id that I use with javascript in the same HTML page. What will happen?
<html>
<head>
<title>My JavaScript page</title>
<script type="text/javascript" src="script.js">
</scrip>
<link rel="stylesheet" type="text/css" href="mystyle.css">
</head>
<body>
<h1 id="show">
</h1>
In case, id, show, has declare both in javascript and css. What will happen?
IDs are a concept of HTML to mark an element in the document as unique. Thus it may be used in the whole document only once. If you are obeying this rule, you will be fine, otherwise you will get into trouble.
Javascript and CSS are two completely different technologies. You can use the HTML ID to target the element and apply CSS styles or work with it in some way via JS. Thus, JS and CSS do not directly interfere with each other.
However, you can change the ID with javascript or move it to another element, resulting in your css not applying it's rules anymore to the initial element (or applying them to another element). Also, you can apply styling via javascript, which might interfere with css.
Other than these described problems you can use the ID in both CSS and JS at will.
If you are intending to use the same ID for two elements . It is a bad idea but if you are updating an already existing ID with Javascript there should not be any problem . Also if you are using two elements with same ID make a separate class for both of the elements and use ID for differentiating between them
<div class="one" id="diff1">
</div>
<div class="one" id="diff2">
</div>
Normally nothing is happen, its depending upon your javascript function. To set font color, alignment to use class instead of id via css. For show/hide some div content mean you can use id within your javascript or jquery function, eventhough you can use class is not a mistake.
I have seen html templates created using any of the following tags
<textarea>
<script>
<div>
Which one is better and why?
Which of the following way of creating html templates is better and y?
CSS:
.template {
display: none;
}
textarea :
<textarea class="template" id="tmpl1">
<div>adfsdfsdfs</div>
</textarea>
script :
<script type="text/html" id="tmpl1">
<div>adfsdfsdfs</div>
</script>
div :
<div class="template" id="tmpl1">
<div>adfsdfsdfs</div>
</div>
I had faced problem with script tag here
i would suggest none of the above options take a look at Mustache it was created by one of the founders of git hub
http://mustache.github.com/
definitely my favorite way to do html templating
They are all poor choices.
textarea is designed to accept user input
div elements are designed to present content to the user
script elements are designed to hold programs
If you want to embed a template into an HTML document, then I'd write a JavaScript program to store it in a variable (and use a json serializer to generate the JavaScript literal that gets assigned to that variable). That program can then go in a script element.
Alternatively, store the template in a data-* attribute on an appropriate element.
I have an element (for example, a body) nested somewhere inside a div.. Something like:
<div class=wrapper>
..
..
<body>
</body>
</div>
How would I go about selecting the body with jQuery?
As others have said - this doesn't look like valid HTML - I'm going to assume that you just gave that as an example as this technique can be used to find any type of element.
This should do the trick to locate the body tag -
$('div.wrapper').find('body')
When you don't specify in your selector that you are talking about a class . or id # attribute - the whole string will be matched to the type of element.
The same could be done for -
<img> tags -
$('div.wrapper').find('img')
<a> tags -
$('div.wrapper').find('a')
<span> tags -
$('div.wrapper').find('span')
etc...
Your HTML Markup is off, first of all.
<body>
<div class="wrapper">
<div class="body">
..
..
</div>
</div>
</body>
Select it with $('div.wrapper div.body')
Thanks to ClarkeyBoy for pointing out my mistakes, fixed my post.
It doesn't look like valid HTML, but try this:
$('div.wrapper body')
Surely that HTML isn't correct to have a body tag within a div? Unless it's inside an iframe?
However you could use this to select the body tag...
jQuery("div.wrapper body").whatever();