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Detecting arrow key presses in JavaScript
... use event.key. No more arbitrary number codes! If you are transpiling or know your users are all on modern browsers, use this!
node.addEventListener('keydown', function(event) {
const key = event.key; // "ArrowRight", "ArrowLeft", "ArrowUp", or "ArrowDown"
});
Verbose Handling:
switch (event.k...
Java's Virtual Machine and CLR
...cept a List<String> or a List<Date>. Of course, since the CLR knows about parametric types, it has no problem handling methods overloaded on generic type specializations.
On a day-to-day basis, that's the difference that I notice most between the CLR and the
JVM.
Other important diffe...
Imitating a blink tag with CSS3 animations
... prefix. It worked, I think, for all actual browser but Chrome and Safari. Now, after the update, it should work for Firefox, Chrome, Opera, Safari and MSIE10.
– m93a
Dec 21 '12 at 14:13
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In Django, how do I check if a user is in a certain group?
...ming, there is one initial user
user.groups.add(group) # user is now in the "Editor" group
then user.groups.all() returns [<Group: Editor>].
Alternatively, and more directly, you can check if a a user is in a group by:
if django_user.groups.filter(name = groupname).exists():
...
How to stop Jenkins installed on Mac Snow Leopard?
I have installed Jenkins executable on OSX, but now I want to stop it running. Whenever I kill it, no matter how, it just restarts immediately.
...
JavaScript, elegant way to check nested object properties for null/undefined [duplicate]
a "problem" which i have every now and then is that i have an object e.g. user = {} and through the course of using the app this gets populated. Let's say somwhere, after an AJAX call or something i do this:
...
Any good, visual HTML5 Editor or IDE? [closed]
...
UPDATE: Out of beta and first Bugfix-release, right now: aptana.com/products/studio3/releasenotes
– Jan
May 10 '11 at 14:48
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Check if a Windows service exists and delete in PowerShell
...l 3.0, the cmdlet Get-WmiObject has been superseded by Get-CimInstance. So nowadays you can do this: Stop-Service 'servicename'; Get-CimInstance -ClassName Win32_Service -Filter "Name='servicename'" | Remove-CimInstance
– Rosberg Linhares
Apr 19 '18 at 15:36
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Python glob multiple filetypes
... a list of multiple file types such as .txt, .mdown, and .markdown? Right now I have something like this:
32 Answers
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How to get all groups that a user is a member of?
...
I tried again just now, still on Win 7, and it does work fine. Perhaps I had typo when first trying this out. Thanks for adding the replace to strip out the forest "guff".
– Dallas
Mar 13 '17 at 21:09
...