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Rake just one migration
... # => 0
This was for ruby 1.9.3p484 (2013-11-22 revision 43786) [x86_64-linux] and Rails 3.2.13.
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Reliable method to get machine's MAC address in C#
...s running using C#. Application will need to work on XP/Vista/Win7 32 and 64 bit as well as on those OSs but with a foreign language default. Many of the C# commands and OS queries don't work across OS. Any ideas? I have been scraping the output of "ipconfig /all" but this is terribly unreliable...
How to sparsely checkout only one single file from a git repository?
...it doesn't store files as you think (as CVS/SVN do), but it generates them based on the entire history of the project.
But there are some workarounds for specific cases. Examples below with placeholders for user, project, branch, filename.
GitHub
wget https://raw.githubusercontent.com/user/projec...
Check play state of AVPlayer
...timeControlStatus
For example, this function plays or pauses the avPlayer based on it's status and updates the play/pause button appropriately.
@IBAction func btnPlayPauseTap(_ sender: Any) {
if aPlayer.timeControlStatus == .playing {
aPlayer.pause()
btnPlay.setImage(UIImage(na...
Maintain aspect ratio of div but fill screen width and height in CSS?
...tio for the div, and the text matching its scale exactly.
Initial size is based on full width:
div {
width: 100vw;
height: calc(100vw * 9 / 16);
font-size: 10vw;
/* align center */
margin: auto;
position: absolute;
top: 0px; right: 0px; bottom: 0px; left: 0px;
/* visual indicat...
Android - Launcher Icon Size
...ch one:
LDPI should be 36 x 36.
MDPI should be 48 x 48.
TVDPI should be 64 x 64.
HDPI should be 72 x 72.
XHDPI should be 96 x 96.
XXHDPI should be 144 x 144.
XXXHDPI should be 192 x 192.
Then just put each of them in the separate stalks of the drawable folder.
You are also required to give...
What is data oriented design?
...ntities in your mental model of the problem. Since data is lumped together based on data usage, you won't always have sensible names to give your classes in Data Oriented Design.
Relation to relational databases
The thinking behind Data Oriented Design is very similar to how you think about relati...
How can I “disable” zoom on a mobile web page?
...eed to disable zoom and loose accessibility features of you site.
If your base font-size is not 16px or not 16px on mobiles, you can use media queries.
@media screen and (max-width: 767px) {
input[type="text"],
input[type="number"],
input[type="email"],
input[type="tel"],
input[...
convert_tz returns null
...marBarmar
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How do I check if a list is empty?
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It's worth noting that this isn't a flaw in Python, but rather an intentional break of contract by numpy - numpy is a library with a very s...