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Remove duplicate values from JS array [duplicate]
... a = [],
LEN = 1000,
LOOPS = 1000;
while(LEN--)
a = a.concat(r);
var d = new Date();
for(var i = 0; i < LOOPS; i++)
uniq(a);
document.write('<br>uniq, ms/loop: ' + (new Date() - d)/LOOPS)
var d = new Date();
for(var i = 0; i < LOOPS; i++)
uniq_fast...
Convenient C++ struct initialisation
...t;iostream>
#include <filesystem>
struct hello_world {
const char* hello;
const char* world;
};
int main ()
{
hello_world hw = {
.hello = "hello, ",
.world = "world!"
};
std::cout << hw.hello << hw.world << std::endl;
return 0;
}...
What is the difference between a string and a byte string?
... False even when they contain exactly the same characters.
>>> # concatenation
>>> b'hi' + b'bye' # this is possible
b'hibye'
>>> 'hi' + 'bye' # this is also possible
'hibye'
>>> b'hi' + 'bye' # this will fail
Traceback (most recent call last):
File "<stdin&...
JPG vs. JPEG image formats
...ut it is inaccurate. • The JPEG group were mostly Unix shops, thus the 4-char .jpeg extension, not because of Mac. • It was the DOS 8.3 limit that caused the shortening to .jpg — windows was just a shell on top of DOS. • The commonly accepted .jpg form is because of programs that had to cope...
is vs typeof
... ~75ms
b = Is<int, int>(s1); // ~136ms
b = GetType1<int, char>(s2); // ~238ms
b = GetType2<int, char>(s2); // ~69ms
b = Is<int, char>(s2); // ~142ms
b = GetType1<int, object>(os1); // ~178ms
b = Is<int, object>(os1); // ~69ms
b = Get...
Rename multiple files by replacing a particular pattern in the filenames using a shell script [dupli
...tern ^([^-]+)-([^.]+) means: from the start of the name, capture 1 or more chars that are NOT -, then expect a dash, then capture 1 or more chars that are not .. $1 is the first capture, $2 is the second.
– erich2k8
Apr 18 '19 at 15:53
...
How to convert string to Title Case in Python?
...his one would always start with lowercase, and also strip non alphanumeric characters:
def camelCase(st):
output = ''.join(x for x in st.title() if x.isalnum())
return output[0].lower() + output[1:]
share
...
do { … } while (0) — what is it good for? [duplicate]
...
@WChargin: the "goto fail" code in the article you linked too would have failed with a "break" too. Somebody just duplicated a line there. It wasn't goto's fault.
– Niccolo M.
Jun 15 '14 a...
Is 'switch' faster than 'if'?
...ecific questions:
Clang generates one that looks like this:
test_switch(char): # @test_switch(char)
movl %edi, %eax
cmpl $19, %edi
jbe .LBB0_1
retq
.LBB0_1:
jmpq *.LJTI0_0(,%rax,8)
jmp void call<0u>() ...
Use space as a delimiter with cut command
...
can you tell cut to use any number of a certain character as the delimiter, like in RegEx? e.g. any number of spaces, e.g. \s+
– amphibient
Nov 1 '12 at 15:42
...