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What is the overhead of creating a new HttpClient per call in a WebAPI client?
... new HttpClient requires re-establishing a new TCP/IP connection.
From my tests, using plain HTTP on a LAN, the performance hit is fairly negligible. I suspect this is because there is an underlying TCP keepalive that is holding the connection open even when HttpClientHandler tries to close it.
...
How to do parallel programming in Python?
...f Python:
from numba import njit, prange
@njit(parallel=True)
def prange_test(A):
s = 0
# Without "parallel=True" in the jit-decorator
# the prange statement is equivalent to range
for i in prange(A.shape[0]):
s += A[i]
return s
Unfortunately, it seems that Numba only...
How does “cat
...e it will be considered as part of the string.
example:
$ cat >> test <<HERE
> Hello world HERE <-- Not by itself on a separate line -> not considered end of string
> This is a test
> HERE <-- Leading space, so not considered end of string
> and a new line
> ...
Return index of greatest value in an array
... Ok this function returns the first encountered index for the greatest value. Let's say I have more than one index with the same highest value, how do I get all these indexes?
– ed1nh0
Apr 15 '19 at 14:02
...
App store link for “rate/review this app”
...WebObjects/MZStore.woa/wa/viewContentsUserReviews?id=YOUR_APP_ID&onlyLatestVersion=true&pageNumber=0&sortOrdering=1&type=Purple+Software
Code snippet (you can just copy & paste it):
#define YOUR_APP_STORE_ID 545174222 //Change this one to your ID
static NSString *const iOS7Ap...
NSRange to Range
...he delegate callback, and so this is safe to use, but I haven't personally tested it.
– Alex Pretzlav
Jan 6 '15 at 21:33
2
...
Redirecting Output from within Batch file
...
SHIFT
)
IF [%1]==[] GOTO Syntax
IF NOT [%2]==[] GOTO Syntax
:: Test for invalid wildcards
SET Counter=0
FOR /F %%A IN ('DIR /A /B %1 2^>NUL') DO CALL :Count "%%~fA"
IF %Counter% GTR 1 (
SET Counter=
GOTO Syntax
)
:: A valid filename seems to have been specified
SET File=%1...
Using an if statement to check if a div is empty
....is().
if( $('#leftmenu').is(':empty') ) {
// ...
Or you could just test the length property to see if one was found.
if( $('#leftmenu:empty').length ) {
// ...
Keep in mind that empty means no white space either. If there's a chance that there will be white space, then you can use $.t...
UICollectionView reloadData not functioning properly in iOS 7
... I'm not sure if I can explain more. After searching, researching, testing and probing. I feel this is an iOS 7 bug. Forcing the main thread will run all UIKit related messages. I seem to run into this when popping to the view from another view controller. I refresh the data on viewWillApp...
Deserialize JSON with C#
...classes are just an example. You should use proper names.
Adding a sample test:
string json =
@"{""data"":[{""id"":""518523721"",""name"":""ftyft""}, {""id"":""527032438"",""name"":""ftyftyf""}, {""id"":""527572047"",""name"":""ftgft""}, {""id"":""531141884"",""name"":""ftftft""}]}";
Friends ...