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The performance impact of using instanceof in Java
...and @Override a test method
using an own type implementation
getClass() == _.class implementation
I used jmh to run the benchmark with 100 warmup calls, 1000 iterations under measuring, and with 10 forks. So each option was measured with 10 000 times, which takes 12:18:57 to run the whole benchmar...
What is the use of making constructor private in a class?
...tor (C++):
Iterator Container::begin() { return Iterator(this->beginPtr_); }
// Iterator(pointer_type p) constructor is private,
// and Container is a friend of Iterator.
share
|
improve th...
Git diff to show only lines that have been modified
...s (+++) or deletions (---). I see that here now: git-scm.com/docs/git-diff#_combined_diff_format.
– Gabriel Staples
May 21 at 6:45
...
Git Diff with Beyond Compare
... #use cygpath to transform cygwin path $LOCAL (something like /tmp/U5VvP1_abc) to windows path, because bc3 is a windows software
cmd = \"c:/program files/beyond compare 3/bcomp.exe\" "$(cygpath -w $LOCAL)" "$REMOTE"
[merge]
tool = bc3
[mergetool]
prompt = false
[mergetool "bc3"]
#...
What is a CSRF token ? What is its importance and how does it work?
...esn’t distinguish
between POST and GET requests (e.g. in PHP by using $_REQUEST instead
of $_POST). Don’t do that! Data altering requests could be submitted
as easy as <img src="http://a.com/tweet?tweet=This+is+really+bad">,
embedded in a malicious website or even an email.
Ho...
For files in directory, only echo filename (no path)
...g more about parameter expansion: wiki.bash-hackers.org/syntax/pe#substring_removal
– DougW
Jan 26 '12 at 1:59
1
...
How to add a border just on the top side of a UIView
... = color
addSublayer(border)
}
private func addCorner(_ corner: Corner, thickness: CGFloat, color: CGColor) {
// Set default to top left
let width = frame.size.width; let height = frame.size.height
var x = cornerRadius
var startAngle: CGFloat = .p...
Base64 length calculation?
...
@techie_28: I make it 27308 characters for 20 * 1024 bytes, but I haven't had coffee yet this morning.
– Paul R
Jul 22 '16 at 6:21
...
How do I drop table variables in SQL-Server? Should I even do this?
...clare @tablename varchar(20)
DECLARE @SQL NVARCHAR(MAX)
SET @tablename = '_RJ_TEMPOV4'
SET @SQL = 'DROP TABLE dbo.' + QUOTENAME(@tablename) + '';
IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(@tablename) AND type in (N'U'))
EXEC sp_executesql @SQL;
Works fine on SQL Serve...
Declare slice or make slice?
...lter(s []int, fn func(int) bool) []int {
var p []int // == nil
for _, v := range s {
if fn(v) {
p = append(p, v)
}
}
return p
}
It means that, to append to a slice, you don't have to allocate memory first: the nil slice p int[] is enough as a slice to ad...