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What is the proper way to check if a string is empty in Perl?
... situation where you haven't already guarded against undef, then the catch-all for "non-empty" that won't warn is if (defined $str and length $str).
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How to construct a set out of list items in python?
... list of filenames in python and I would want to construct a set out of all the filenames.
6 Answers
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How do I compare strings in Java?
I've been using the == operator in my program to compare all my strings so far.
However, I ran into a bug, changed one of them into .equals() instead, and it fixed the bug.
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Is there a way to make ellipsize=“marquee” always scroll?
...ds onFocusChanged, onWindowFocusChanged and isFocused to make the TextView all focused.
@Override
protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
if(focused)
super.onFocusChanged(focused, direction, previouslyFocusedRect);
}
@Override
public ...
Git clone without .git directory
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Is there a way to get the depth=1 of all branches in the repo? not just master or specified branch
– Gayan Pathirage
Mar 7 '16 at 9:03
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How does lombok work?
...c. However, the vast majority of VMs out there, if they ship a compiler at all, are one of those two. For example, the Apple VM ships with stock sun javac, and as such lombok works just fine on macs. Same goes for the soylatte VM, for example.
While for javac we really do have to stick with their u...
How to manually install an artifact in Maven 2?
I've encountered some errors when I tried to install an artifact manually with Maven 2. I wanted to install a jar from a local directory with the command
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git add remote branch
... information on merging the remote and local branches.
Creating a remote called "github":
git remote add github git://github.com/jdoe/coolapp.git
git fetch github
List all remote branches:
git branch -r
github/gh-pages
github/master
github/next
github/pu
Create a new local branch (tes...
C++ include and import difference
...andard C/C++ preprocessor statement, used for including header (or occasionally other source code) files in your source code file.
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SQL Server equivalent to MySQL enum data type?
...rable (and SQL Server doesn't support the concept of immutable tables), finally if you have lots of enums with only a few values then you'll end-up adding lots of tables to your database. Not to mention extra IO reads due to FK constraint-checking when inserting/deleting data, whereas a CHECK CONSTR...