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When do you use map vs flatMap in RxJava?
...another.
flatMap transform one event to zero or more event. (this is taken from IntroToRx)
As you want to transform your json to an object, using map should be enough.
Dealing with the FileNotFoundException is another problem (using map or flatmap wouldn't solve this issue).
To solve your Excepti...
Why did my Git repo enter a detached HEAD state?
...ntaining the contents of the latest commit, plus a snapshot of files taken from the working directory. Additionally, files are copied to the stage. What does it mean by "files are copied to the stage"? I thought the files are committed, which means the stage is cleared?
– max
...
Static and Sealed class differences
...------------------+---------------------+
| Class Type | | Can inherit from others | Can be inherited | Can be instantiated |
|--------------|---|-------------------------+------------------+---------------------+
| normal | : | YES | YES | YES ...
java.lang.UnsupportedClassVersionError: Bad version number in .class file?
...ting this error when I include an opensource library that I had to compile from source. Now, all the suggestions on the web indicate that the code was compiled in one version and executed in another version (new on old). However, I only have one version of JRE on my system. If I run the commands:...
What is the difference between Trap and Interrupt?
...tor 0) but the kernel developers have several choices how to handle it. So from a user process, it's a trap but from the CPU side, it's an interrupt. Who is right? None? Both?
– Aaron Digulla
May 22 '12 at 11:06
...
Hard reset of a single file
... both the working copy of my-file.txt and its state in the index with that from HEAD.
-- basically means: treat every argument after this point as a file name. More details in this answer. Thanks to VonC for pointing this out.
...
Quit and restart a clean R session from within R?
... I believe opening a "clean R session" requires that 1-Data from current session is removed; 2-Packages from current session are unloaded. .rs.restartR() does not seem to do either of these things on my machine..
– steadyfish
May 6 '16 at 13:58
...
How to return a value from a Form in C#?
...re, along with the values that needs to be filled in.
public class ResultFromFrmMain {
public DialogResult Result { get; set; }
public string Field1 { get; set; }
}
And on the form:
public static ResultFromFrmMain Execute() {
using (var f = new frmMain()) {
var resul...
What is the standard way to add N seconds to datetime.time in Python?
...ater: datetime(101,1,1,11,34,59). If you try subtracting a large timedelta from the date above, you'll get an "OverflowError: date value out of range" error as the year for a datetime object cannot be smaller than 1
– pheelicks
Nov 29 '11 at 5:23
...
Xcode Simulator: how to remove older unneeded devices?
...
Did you tried to just delete the 4.3 SDK from within the Xcode Package?
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs
please also delete the corresponding .dmg file in
~/Library/Caches/com.apple.dt.Xcode/Downl...