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Identify if a string is a number
... @CFP +1...RegEx are always better than usual functions, when applicable!
– MAXE
Jun 27 '12 at 15:32
19
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Android Studio says “cannot resolve symbol” but project compiles
... and android studio will suggest you import
import android.support.v4.app.FragmentActivity;
Import it, then go back to Open Module Settings and change the compile sdk version back to what it was before.
Wait for things to load and voila.
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Omit rows containing specific column of NA
...dy? Take all columns that do not have NAs at all.
– Léo Léopold Hertz 준영
Jul 18 '17 at 15:33
1
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Resolve absolute path from relative path and/or file name
...ou need to support both relative and absolute paths, you can make use of Frédéric Ménez's solution: temporarily change the current working directory.
Here's an example that'll demonstrate each of these techniques:
@echo off
echo %%~dp0 is "%~dp0"
echo %%0 is "%0"
echo %%~dpnx0 is "%~dpnx0"
ech...
Get a filtered list of files in a directory
...osed to os.listdir just returning the file name. At least this is what is happening in Python 2.
– k427h1c
May 1 '19 at 19:41
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A valid provisioning profile for this executable was not found for debug mode
I am getting this error while I am trying to debug my app on device.
42 Answers
42
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How to create circle with Bézier curves?
... a circle radius. There also exists an engine that can create a path from Bézier curve points.
10 Answers
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Java Programming - Where should SQL statements be stored? [closed]
Where should an JDBC-compliant application store its SQL statements and why?
15 Answers
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How to get a random number in Ruby
...ust need a random float, just call rand with no arguments.
As Marc-André Lafortune mentions in his answer below (go upvote it), Ruby 1.9.2 has its own Random class (that Marc-André himself helped to debug, hence the 1.9.2 target for that feature).
For instance, in this game where you need to ...
Custom fonts in iOS 7
I'm developing a game and I would like to use a custom font in my app. I'm using SpriteKit for it, if that's important. I've tried using this https://github.com/deni2s/IBCustomFonts but I cannot get it to work with this font http://www.fontspace.com/freaky-fonts/emulogic
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