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Difference between sh and bash
...e the three-argument for((i=0;i<=3;i++)) loop, += increment assignment, etc. The $'string\nwith\tC\aescapes' feature is tentatively accepted for POSIX (meaning it works in Bash now, but will not yet be supported by sh on systems which only adhere to the current POSIX specification, and likely wil...
live output from subprocess command
...output about what iteration its at, what time, what the next time-step is, etc.
16 Answers
...
Checking if an Android application is running in the background
...to, but if your activity is already extended from MapActivity/ListActivity etc. you still need to write the following by hand):
@Override
protected void onResume() {
super.onResume();
MyApplication.activityResumed();
}
@Override
protected void onPause() {
super.onPause();
MyApplication.ac...
Finding a branch point with Git?
...rate can also be interesting; it adds an indication of branch names, tags, etc. Not adding this to the command-line above since the output below doesn't reflect its use.)
which shows (assuming git config --global color.ui auto):
Or, in straight text:
* a9546a2 merge from topic back to maste...
RESTful Alternatives to DELETE Request Body
...n't understand what the RESTFUL idea is on how we should check concurrency etc. Concurrency checks do not belong on the client.
– Dirk Wessels
Feb 6 at 22:32
...
Why does Ruby have both private and protected methods?
...
# Comparable module will use this comparison method for >, <, ==, etc.
def <=>(other_dwarf)
# One dwarf is allowed to call this method on another
beard_strength <=> other_dwarf.beard_strength
end
def greet
"Lo, I am #{name}, and have mined these #{age} years.\...
Should I use a data.frame or a matrix?
...ables) can be expected to be of different types (numeric/character/logical etc.). Matrices are for data of the same type.
Consequently, the choice matrix/data.frame is only problematic if you have data of the same type.
The answer depends on what you are going to do with the data in data.frame/ma...
How can you use an object's property in a double-quoted string?
...e command's 1st token is a number, variable, statement keyword (if, while, etc), unary operator, {, etc... then the parsing mode is Expression otherwise Argument (up to a command terminator).
– Uber Kluger
Aug 7 at 3:30
...
Best approach for designing F# libraries for use from both F# and C#
... a functional style (using F# function types, tuples, discriminated unions etc.)
.NET library is designed to be used from any .NET language (including C# and F#) and it typically follows .NET object-oriented style. This means that you'll expose most of the functionality as classes with method (and s...
Should accessing SharedPreferences be done off the UI Thread?
...oncurrency (and a lot of Android devices run on yaffs... Droid, Nexus One, etc.) so if you avoid disk, you avoid getting stuck behind other in-flight or pending disk operations.
so you'll probably want to load the SharedPreferences during your onCreate() and re-use the same instance, avoiding the st...