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How do I check if an HTML element is empty using jQuery?
...$('#element').is(':empty')){
//do something
}
for more info see http://api.jquery.com/is/ and http://api.jquery.com/empty-selector/
EDIT:
As some have pointed, the browser interpretation of an empty element can vary. If you would like to ignore invisible elements such as spaces and line breaks...
Print number of keys in Redis
...s_mode:standalone
os:Linux 5.4.0-1017-aws x86_64
arch_bits:64
multiplexing_api:epoll
atomicvar_api:atomic-builtin
gcc_version:9.3.0
process_id:2854672
run_id:90a5246f10e0aeb6b02cc2765b485d841ffc924e
tcp_port:6379
uptime_in_seconds:2593097
uptime_in_days:30
hz:10
configured_hz:10
lru_clock:4030200
ex...
Downloading all maven dependencies to a directory NOT in repository?
...n. I'm using it right now to inspect the dependent libraries for redundant API definitions (e.g. some libraries will include Javax APIs, which can conflict with other versions of the same API), but it's also good if your app needs its dependencies packaged with it for distribution, or just whatever....
When to use Vanilla JavaScript vs. jQuery?
...n elements
But if there are many, you may want to do a little native DOM API:
var spans = document.getElementsByTagName('span');
while( spans[0] ) {
var parent = spans[0].parentNode;
while( spans[0].firstChild ) {
parent.insertBefore( spans[0].firstChild, spans[0]);
}
par...
Difference between MEAN.js and MEAN.io
...this stack that use other denomination, some of them really good for RAD (Rapid Application Development) and building SPAs. Eg:
Meteor. Now with official Angular support, represents a great MEAN stack
StrongLoop Loopback (main Node.js core contributors and Express maintainers)
Generator Angular F...
Recommended way of making React component/div draggable
...esult in a NaN. See the MDN article: developer.mozilla.org/en-US/docs/Web/API/Element/…
– Andru
Mar 25 '15 at 22:47
...
Jquery: how to trigger click event on pressing enter key
...PE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js"></script>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
<textarea id="txtSearchProdAssign"></textarea>
<...
How Should I Declare Foreign Key Relationships Using Code First Entity Framework (4.1) in MVC3?
... PK name you must either use ForeignKeyAttribute data annotation or fluent API to map the relation
Data annotation:
// The name of related navigation property
[ForeignKey("Parent")]
public int ParentId { get; set; }
Fluent API:
modelBuilder.Entity<Child>()
.HasRequired(c =>...
Why JavaScript rather than a standard browser virtual machine?
...e "Machine language" for the web, with other better designed languages and APIs compile down to it (and cater for different runtime engine foibles).
I don't think, however, any of these "better designed languages" will be Java, Python or Ruby. Javascript is, despite the ability to be used elsewhere...
Cryptic “Script Error.” reported in Javascript in Chrome and Firefox
...te.com/index.php, which includes a JS file from an external party (e.g. an API provider's server apiprovider.com/api.js); in this case we don't have access to that server so we cannot add the "Access-Control-Allow-Origin" header. Is there any way to get error messages originated from api.js?
...