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How to track down log4net problems
...n watch the output in realtime. It's good for debugging log4net in a small test harness to see what's happening with the appender you're testing.
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Is there a way to use shell_exec without waiting for the command to complete?
... the running process. Of course, it can be any command you want. But for a test, you can create a php file with a sleep(20) command it.
exec("nohup /usr/bin/php -f sleep.php > /dev/null 2>&1 &");
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Warning message: In `…` : invalid factor level, NA generated
...or numeric values)
# (as.vector can be use for objects - not tested)
fixed$Type <- as.character(fixed$Type)
fixed[1, ] <- c("lunch", 100)
# Re-factorize with the as.factor function or simple factor(fixed$Type)
fixed$Type <- as.factor(fixed$Type)
...
Remove NA values from a vector
...ively slower (though I'll happily take comments on my implementation & test!)
microbenchmark::microbenchmark(
purrr::map(airquality,function(x) {x[!is.na(x)]}),
purrr::map(airquality,na.omit),
purrr::map(airquality, ~purrr::discard(.x, .p = is.na)),
times = 1e6)
Unit: microseconds
...
Targeting both 32bit and 64bit with Visual Studio in same solution/project
... you only reference the x86 or the x64 dlls in your csprojs. Adapt the UnitTests settings to the architecture settings you have chosen. It's important for debugging/running the tests inside VisualStudio.
On Reference-Properties set Copy Local & Specific Version to false
Get rid of the architectu...
Why doesn't Java allow to throw a checked exception from static initialization block?
...ver from it.
In most cases, the exception cannot be caught:
public class Test {
static {
int i = 1;
if (i == 1) {
throw new RuntimeException("Bang!");
}
}
public static void main(String[] args) {
try {
// stuff
} catch (T...
Get data from fs.readFile
...turns a string. Otherwise it returns a buffer.
var text = fs.readFileSync('test.md','utf8')
console.log (text)
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What does -D_XOPEN_SOURCE do/mean?
...age for each function you call.
For example, man strdup says:
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
strdup(): _SVID_SOURCE || _BSD_SOURCE || _XOPEN_SOURCE >= 500
strndup(), strdupa(), strndupa(): _GNU_SOURCE
Which means that you should put o...
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
...
WPF ListView turn off selection
...ome other way of notifying the user when the item is selected (or just for testing) you can add a column to represent the value:
<GridViewColumn Header="IsSelected"
DisplayMemberBinding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ListViewItem}...