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Google Guice vs. PicoContainer for Dependency Injection
...scourage setter injection but other than that, your classes don't need to know about Pico. It's only the wiring that needs to know (true for all DI frameworks).
Guice - Guice now supports the standard JSR 330 annotations, so you do not need Guice specific annotations in your code anymore. Spring als...
Android image caching
...
And now the punchline: use the system cache.
URL url = new URL(strUrl);
URLConnection connection = url.openConnection();
connection.setUseCaches(true);
Object response = connection.getContent();
if (response instanceof Bitmap) {...
Which timestamp type should I choose in a PostgreSQL database?
...TE TABLE my_tbl (
my_timestamp TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
CHECK(EXTRACT(TIMEZONE FROM my_timestamp) = '0')
);
test=> SET timezone = 'America/Los_Angeles';
SET
test=> INSERT INTO my_tbl (my_timestamp) VALUES (NOW());
ERROR: new row for relation "my_tbl" violates check...
Sleep in JavaScript - delay between actions
...at the question asked, but it's more useful than the loop and compare Date.now(). Nobody what to use a blocked loop the implement sleep.
– Li Chunlin
Aug 10 '17 at 16:01
2
...
Kotlin secondary constructor
...
Update: Since M11 (0.11.*) Kotlin supports secondary constructors.
For now Kotlin supports only primary constructors (secondary constructors may be supported later).
Most use cases for secondary constructors are solved by one of the techniques below:
Technique 1. (solves your case) Define a fa...
Why is `std::move` named `std::move`?
...T>(t) would do). So readers of this code would naturally think:
I know how swap is supposed to work (copy to temporary and then exchange the values), but what is the purpose of those ugly casts?!
Note also that swap is really just a stand-in for all kinds of permutation-modifying algorithm...
What is the difference between a shim and a polyfill?
...
Shim
If you are familiar with the adapter pattern, then you know what a shim is. Shims intercepts API calls and creates an abstract layer between the caller and the target. Typically shims are used for backward compability. For instance the es5-shim npm package will let you write ECMAS...
Python strftime - date without leading 0?
...>>> '{dt.year}/{dt.month}/{dt.day}'.format(dt = datetime.datetime.now())
'2013/4/19'
Though perhaps beyond the scope of the original question, for more interesting formats, you can do stuff like:
>>> '{dt:%A} {dt:%B} {dt.day}, {dt.year}'.format(dt=datetime.datetime.now())
'Wedne...
Best way to create unique token in Rails?
...
-- Update --
As of January 9th, 2015. the solution is now implemented in Rails 5 ActiveRecord's secure token implementation.
-- Rails 4 & 3 --
Just for future reference, creating safe random token and ensuring it's uniqueness for the model (when using Ruby 1.9 and ActiveR...
Convert LocalDate to LocalDateTime or java.sql.Timestamp
...ttribute(Timestamp ts) {
return ts.toLocalDateTime();
}
}
So now it is relative timezone independent time.
Additionally it is easy do:
LocalDate ld = ldt.toLocalDate();
LocalTime lt = ldt.toLocalTime();
Formatting:
DateTimeFormatter DATE_TME_FORMATTER = DateTimeFormatter.ofPat...