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How to check visibility of software keyboard in Android?
...e the height of the action bar. In the new answer that has been ignored by testing if that height is greater than some constant, but 100 pixels is not sufficient for xxhdpi devices such as the Nexus 4. Consider converting that value to DPs if you really want to use this hacky work-around.
...
Using bitwise OR 0 to floor a number
...loops on chrome due to loop invariant code motion. A slightly better perf test would be: jsperf.com/floor-performance/2
– Sam Giles
May 8 '13 at 12:04
...
Create list of single item repeated N times
... references to the same list, not n independent empty lists.
Performance testing
At first glance it seems that repeat is the fastest way to create a list with n identical elements:
>>> timeit.timeit('itertools.repeat(0, 10)', 'import itertools', number = 1000000)
0.37095273281943264
>...
Good ways to manage a changelog using git?
...ect (for example: doc, packaging, code ...)
by audience (for example: dev, tester, users ...)
Additionally, you could want to tag some commits:
as "minor" commits that shouldn't get outputed to your changelog (cosmetic changes, small typo in comments...)
as "refactor" if you don't really have a...
Private properties in JavaScript ES6 classes
...t.
class Something {
#property;
constructor(){
this.#property = "test";
}
#privateMethod() {
return 'hello world';
}
getPrivateMessage() {
return this.#privateMethod();
}
}
const instance = new Something();
console.log(instance.property); //=> undefined
console.lo...
How to make Java honor the DNS Caching Timeout?
...tStream;
import java.net.URL;
import java.net.URLConnection;
public class Test {
final static String hostname = "www.google.com";
public static void main(String[] args) {
// only required for Java SE 5 and lower:
//Security.setProperty("networkaddress.cache.ttl", "30");
...
What is the Scala annotation to ensure a tail recursive function is optimized?
...the compiler.
In Scala 2.7 or earlier, you will need to rely on manual testing, or inspection of the bytecode, to work out whether a method has been optimised.
Example:
you could add a @tailrec annotation so that you can be sure that your changes have worked.
import scala.annotation.t...
How can I get all constants of a type by reflection?
...not sure about the assertions with regards to IsLiteral and IsInitOnly. On testing it would seem that for static readonly properties IsLiteral is always false - so IsLiteral is the only flag you need to check to find constants and you can ignore IsInitOnly. I tried with different field types (e.g. S...
Finding the number of days between two dates
...
This function failed 0 of 14603 tests between 1980 and 2020.
– LSerni
Nov 9 '17 at 21:38
...
“x not in y” or “not x in y”
When testing for membership, we can use:
6 Answers
6
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