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Coding Practices which enable the compiler/optimizer to make a faster program
...ithout branching:
bool status = true;
status = status && /* first test */;
status = status && /* second test */;
The short circuiting of the Logical AND operator (&&) prevents execution of the tests if the status is false.
Example:
struct Reader_Interface
{
virtual boo...
How to detect a loop in a linked list?
...ation; it only saves one iteration at most at the expense of an additional test for every iteration.
– Jason C
Mar 5 '14 at 23:59
...
Using jQuery to compare two arrays of Javascript objects
...
I needed a simple method to compare arrays in my unit tests, assuring the same order for the two arrays. It's very nice, thanks.
– aymericbeaumet
Feb 5 '14 at 2:45
...
ERROR ITMS-9000: “Redundant Binary Upload. There already exists a binary upload with build version '
... internal, well, build number! It goes up each time you build your app for testing, so you have a reference to bug track it which changes whenever the code does. This is why test flight lists your builds the way it does. Eg. Version 1.0.0 (2) It depends on your company how you structure the build nu...
Gradle buildscript dependencies
...ptional" keywords for dependencies in addition to the usual "compile" and "testCompile" keywords. Note: The war plugin already offers the "provided" keyword, you just need propdeps for jar projects that will be deployed inside a war.
– Powerlord
Sep 24 '15 at ...
Why does changing the returned variable in a finally block not change the return value?
... see in the output s is indeed changed but after the return.
public class Test {
public String s;
public String foo() {
try {
s = "dev";
return s;
} finally {
s = "override variable s";
System.out.println("Entry in finally Block");
}
}
public static ...
.keyCode vs. .which
...
@anne-van-rossum, event.wich == null && ... test for null or undefined only. your event.wich || ... test for falsy (undefined, null, false, 0, '', etc)
– aMarCruz
May 22 '15 at 11:54
...
Split column at delimiter in data frame [duplicate]
...),
+ bar=c('p|q', 'r|s', 's|t'), stringsAsFactors=F)
> transform(df, test=do.call(rbind, strsplit(foo, '|', fixed=TRUE)), stringsAsFactors=F)
id foo bar test.1 test.2
1 1 a|b p|q a b
2 2 b|c r|s b c
3 3 c|d s|t c d
Multiple columns:
> transform(df, lapp...
Changing the selected option of an HTML Select element
.... I used post-increment instead of pre-increment, and then I added another test which is slightly faster than your 3rd test.
– kzh
Nov 4 '13 at 14:03
1
...
BackgroundWorker vs background Thread
...
Only use CancelAsync (and test for CancellationPending if your thread will be polling on short intervals, if you want to have an exception raised instead, use a System.Threading.Thread.Abort() which raises an exception within the thread block itself, ...