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Can I use a :before or :after pseudo-element on an input field?
I am trying to use the :after CSS pseudo-element on an input field, but it does not work. If I use it with a span , it works OK.
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How to check in Javascript if one element is contained within another
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Update: There's now a native way to achieve this. Node.contains(). Mentioned in comment and below answers as well.
Old answer:
Using the parentNode property should work. It's also pretty safe from a cross-browser standpoint. If the relationship is known to be on...
How to set response filename without forcing “save as” dialog
...s answer, and wish you'd given hard facts instead of FUD. I just tested in IE 6, IE 8, modern Chrome, and modern Firefox, and it works in all of them; as far as I can tell, it's totally safe to use this nowadays.
– Mark Amery
Jun 1 '14 at 18:35
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Best way to find if an item is in a JavaScript array? [duplicate]
...t 2016 you can use includes()
arr.includes(obj);
If you want to support IE or other older browsers:
function include(arr,obj) {
return (arr.indexOf(obj) != -1);
}
EDIT:
This will not work on IE6, 7 or 8 though. The best workaround is to define it yourself if it's not present:
Mozilla's ...
Can I set an opacity only to the background image of a div?
... to the container to hold the background. This is the most cross-browser friendly method and will work even on IE6.
HTML
<div class="myDiv">
<div class="bg"></div>
Hi there
</div>
CSS
.myDiv {
position: relative;
z-index: 1;
}
.myDiv .bg {
position: ...
How do I create and read a value from cookie?
How can I create and read a value from a cookie in JavaScript?
19 Answers
19
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How can HTML5 “replace” Flash? [closed]
...iscussion is the combination of HTML as a markup language, CSS which specifies how it is rendered, and the javascript code which manipulates the HTML and CSS dynamically.
Furthermore, HTML5 not only has the standard text elements, but also <canvas> on which 2d graphics can be drawn, and <v...
How do I center floated elements?
... floated. But then, text-align: center; doesn't work on them. I could achieve it by giving the wrapper div padding of left, but every page will have a different number of pages, so that wouldn't work. Here's my code:
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If a DOM Element is removed, are its listeners also removed from memory?
...) etc).
Older browsers
Older browsers - specifically older versions of IE - are known to have memory leak issues due to event listeners keeping hold of references to the elements they were attached to.
If you want a more in-depth explanation of the causes, patterns and solutions used to fix le...
How can I create a link to a local file on a locally-run web page?
...he browser could assume it's meant to be http://c/ with a blank port specified, but that's going to fail.
Your browser may not assume it's referring to a local file. It has little reason to make that assumption because public sites usually don't attempt to link to peoples' local files.
So if you w...