This JS code tries to modify the raw html. It does that by converting the html to jQuery element, does the modifications on the jQuery element then the part which is not working is converting back to raw html string.
Since .html() will not work with xml as indicated in the docs
How can it convert the jQuery back to raw html string? Thanks
let jQ = $($.parseHTML(raw_html));
//modify jQ to heart content
console.log(jQ.html()); //<-- undefined
The raw_html
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
//...
</html>
edit
Output of console.log($.parseHTML(raw_html));
Do
var a = $('<div>').append(raw_html);
//do modifications to variable a
$(a).html() will display the correct html
NOTE this will strip head and other tags as discussed here
heres a plnkr
Related
I have a selector in a find function that works with jQuery 3.3.1 and before that doesn't in 3.4.0 and 3.4.1. I am using it on an xhtml jQuery document object that I have used $.parseXML on. I am using the full version of jQuery.
I have looked into the jQuery changelogs and see nothing that should affect this, as well as in the source changes on github.
I have tested the find with .class and #id and it works, but the IDs will be dynamic so I need to search by attribute name. There will also be multiple spans that I need to manipulate which is why I need a .each(function). Currently we are freezing our dependency to jQuery 3.3.1 because it works as expected but in 3.4.0+ it doesn't even enter the function.
Works:
const xmlDoc = $.parseXML(`<?xml version="1.0" encoding="windows-1252" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns:dd="DynamicDocumentation">
<head>
<title></title>
</head><body><span dd:drop_list_uuid="9999">mydrop1</span></body></html>`);
const $xml = $(xmlDoc).find('body');
$xml.find('span[dd\\:drop_list_uuid]').each(function() {
console.log($(this).text())
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
Does not work:
const xmlDoc = $.parseXML(`<?xml version="1.0" encoding="windows-1252" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns:dd="DynamicDocumentation">
<head>
<title></title>
</head><body><span dd:drop_list_uuid="9999">mydrop1</span></body></html>`);
const $xml = $(xmlDoc).find('body');
$xml.find('span[dd\\:drop_list_uuid]').each(function() { // This is the line that doesn't work
console.log($(this).text())
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
Problem solved here. 3.4.0+ gets rid of sizzle.
https://forum.jquery.com/topic/jquery-find-function-with-escape-characters-not-working-in-latest-version#14737000008103091
"the new versions of jQuery use querySelectoAll without sizzle. So many sizzle syntaxes don't work anymore.
A namespaced attribute query was probably implemented in sizzle."
-jakecigar
I have a web page that generates HTML via JavaScript.
When validating using HTML validator 0.9.5.1 in Firefox 22, I get an error: 'document type does not allow element "span" here'
I am using this JavaScript:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
...<body>...
<script type='text/javascript'>
var someHtml = '<span>Hello world!</span>';
var e;
e = window.document.createElement('div');
e.innerHTML = someHtml;
window.document.body.appendChild(e);
</script>
Obviously the parser assumes that <span> is nested inside <script>
How should i rewrite the JavaScript to pass HTML validation? I would prefer a solution that does not require me to create HTML elements.
Note: The answers in Avoiding HTML-in-string / html() in a jQuery script do not help me since I know that the code works. I want to reformat to avoid validation errors.
the pre element is for preformatted text, not more HTML.
HTML Tidy's objection is that you are putting something that it believes you expect the browser to render as HTML, you need to scape the entities (replacing < and > with < and >) so that it is interpretted as text.
UPDATE IN RESPONSE TO COMMENT:
With an XHTML doctype, the document must be wellformed XML. So, you need CDATA marks inside your script tag:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>Hello world</title>
</head>
<body>
<script type='text/javascript'>
//<![CDATA[
var someHtml = "<div>Hello world!</div>";
var e;
e = window.document.createElement('div');
e.innerHTML = someHtml;
window.document.body.appendChild(e);
//]]>
</script>
</body>
</html>
You can't put <div> inside <pre>. <pre> can contain phrasing content only, where <div> is not.
Also you should wrap your script with <![CDATA[ ... ]]> section since doctype is XHTML.
I'm generating a KML document in Javascript and i'm trying to use XMLSerializer to generate the XML file but it's generating all lower case tags even though i create the tags in capital in the DOM.
Is it the DOM that mangles the capitalization or the XMLSerializer? Is there any way to get around it or am I missing something? I've tried this in both Chrome and Firefox.
The KML document is to be imported into Google Earth and it seems it doesn't accept lower case tags.
Based on testing in FF4, the following will work:
Use document.createElementNS ("http://www.opengis.net/kml/2.2", elementName) instead of document.createElement(elementName).
Use elt.appendChild (document.createTextNode (text)) instead of elt.innerHTML = text.
The following works for me (preserving case) in FF 5 beta in an XHTML page:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>test</title>
<script type="text/javascript">
function test() {
var kml = document.getElementsByTagName("kml").item(0);
window.alert (new XMLSerializer().serializeToString(kml));
}
</script>
</head>
<body onload="test()">
<kml id="kml" xmlns="http://www.opengis.net/kml/2.2">
<Document>
<name>KML Samples</name>
<open>1</open>
<description>samples</description>
<Style id="downArrowIcon">
<IconStyle>
<Icon>
<href>http://maps.google.com/mapfiles/kml/pal4/icon28.png</href>
</Icon>
</IconStyle>
</Style>
</Document>
</kml>
</body>
</html>
It doesn't matter if you add elements with capital letters, the DOM manages them always in lower case. Just check it with firebug, you won't see uppercase tags.
In case your doctype is set to XHTML it even breaks standard compliance.
in XHTML attributes and elements must be all lower-case
UPDATE: just checked following:
var test = document.createElement("DIV");
// test.outerHTML returns "<div></div>"
So already when you create the element, it's being parsed and converted to lowercase.
If i add the Js Script above This Line <!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> Then CSS Is not working. Is There is any way to solve this issue
<script type="text/javascript">
<?php $data3 = getmaildata(); ?>
var collection = [<?php echo $data3; ?>];
</script>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org /TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>.:: sample ::.</title>
<link rel="stylesheet" href="css/stylesheet.css" type="text/css">
A script element can appear in the head or in the body, it can't appear before the Doctype and no element can appear outside the root element (<html>).
If the Doctype (with a couple of provisos which don't apply in this case) isn't the very first thing in a document then browsers will enter Quirks mode (and emulate bugs seen in older browsers with CSS and DOM handling).
There is no way around this (that is well supported by browsers), so just write valid code and don't try to put a script element somewhere that it isn't allowed.
<script> tags are usually placed in <head> or just before </body>, I don't know if it's related but your code is still invalid.
What happens if you put the SCRIPT element in its proper place, inside the HEAD section or in the BODY?
Also, I don't know what $data3 contains, but if it's a string and not an integer for instance, then it should be encapsulated in quotation marks.
The doctype declaration should be the very first thing in an HTML document, before the tag.
The doctype declaration is not an HTML tag; it is an instruction to the web browser about what version of the markup language the page is written in.
The doctype declaration refers to a Document Type Definition (DTD). The DTD specifies the rules for the markup language, so that the browsers can render the content correctly.
http://www.w3schools.com/tags/tag_DOCTYPE.asp
I pass a string from one page to another page using AJAX method.This string is available in the data base.It retrieves string along with the whole client page script of the page from where i am retrieving the data.I want the string alone from the rest of the data using javascript.The string which i retrieve from the data base alone will be keep on changing
This is how it looks:
**live its live** <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><htmlxmlns="http://www.w3.org/1999/xhtml"> <head><title> Untitled Page </title>
I want to remove the whole paragraph except **live its live**.The problem is that the **live its live** text alone will be changed if it is updated in the data base
Can anybody pls help me sort out this problem....
demo
var str = '**live its live** <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head><title> Untitled Page </title><link href="App_Themes/Modern/default.css" type="text/css" rel="stylesheet" /></head> <body> <form name="form1" method="post" action="/Web/MessageDisplay.aspx" id="form1"> <div> <input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUJNzgzNDMwNTMzZGTa4056JeZHQioLQvNmbYjBQvHt8A==" /> </div> <div> </div> </form> </body> </html>';
alert(str.slice(0,str.indexOf('<!DOCTYPE')))
Your code must have a way to uniquely identify the live its live text to avoid loopholes. If you just slice the string using the content it may fail. Assuming that you used "**" as a wrapper to uniquely identify the text, an alternative to slicing the string or getting its substring is to use javascript's regular expression.
E.g.
var re = /\*\*.*\*\*/gi;
var str = '**live its live** <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><htmlxmlns="http://www.w3.org/1999/xhtml"> <head><title> Untitled Page </title>;';
alert(re.exec(str)[0]);
For more information on RegExp, see https://developer.mozilla.org/en/core_javascript_1.5_guide/regular_expressions