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List directory in Go
...ts of a directory and speed is of essence, note that using Readdirnames is orders of magnitude faster (around 20x faster for me)
– SquattingSlavInTracksuit
Oct 14 '19 at 12:41
...
I want to get Year, Month, Day, etc from Java Date to compare with Gregorian Calendar date in Java.
...th = cal.get(Calendar.MONTH);
int day = cal.get(Calendar.DAY_OF_MONTH);
// etc.
Beware, months start at 0, not 1.
Edit: Since Java 8 it's better to use java.time.LocalDate rather than java.util.Calendar. See this answer for how to do it.
...
How to perform .Max() on a property of all objects in a collection and return the object with maximu
...er which finds the maximum value on every iteration (making it O(n^2))
The ordering solution is O(n log n)
Taking the Max value and then finding the first element with that value is O(n), but iterates over the sequence twice. Where possible, you should use LINQ in a single-pass fashion.
It's a lot s...
When to throw an exception?
...es not expect. UserNameNotValidException , PasswordNotCorrectException etc.
32 Answers
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How are 3D games so efficient? [closed]
... a completely full-featured hardware device which is unlikely to exist, in order to show off all the features of the API. But since the hardware doesn't actually exist, it runs on your CPU instead. That's much more inefficient than delegating to a graphics card -- hence your high CPU usage.
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How does HashSet compare elements for equality?
...y the default equality comparer.
Note how none of this is in terms of an ordered comparison - which makes sense, as there are certainly situations where you can easily specify equality but not a total ordering. This is all the same as Dictionary<TKey, TValue>, basically.
If you want a set w...
What is the difference between min SDK version/target SDK version vs. compile SDK version?
... Android that the build tools uses to compile and build the application in order to release, run, or debug.
Usually the compile sdk version and the target sdk version are the same.
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generate days from date range
...ECT
date
FROM
dates
WHERE
date BETWEEN '2010-01-20' AND '2010-01-24'
ORDER BY
date
Update
It is worth noting that you will only be able to generate past dates starting from the current date. If you want to generate any kind of dates range (past, future, and in between), you will have to u...
Views vs Components in Ember.js
...able Components when a route is entered, instead of a controller/view. In order to future proof your app, it's best to stay away from Views.
Sources:
Road to Ember 2.0: https://github.com/emberjs/rfcs/pull/15
Future-proofing your Ember 1.x code: https://gist.github.com/samselikoff/1d7300ce59d21...
Why hasn't functional programming taken over yet?
...roductivity goes up (example: Erlang)
Productivity has to go up a lot in order to justify the massive expense of hiring programmers who know how to program in a functional style.
And remember, you don't want to throw away a working system; most programmers are not building new systems from scratc...