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Daylight saving time and time zone best practices [closed]
...an use UTC, but future time scheduling and date-only values should not.)
Testing:
When testing, make sure you test countries in the Western, Eastern, Northern and Southern hemispheres (in fact in each quarter of the globe, so 4 regions), with both DST in progress and not (gives 8), and a country...
How do I check if a Sql server string is null or empty
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SELECT case when ISNULL(col1, '') = '' then '' else col1 END AS COL1 FROM TEST
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How do I install cURL on cygwin?
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How to install the lynx .
– qg_java_17137
Aug 21 '18 at 7:11
Not working for me. It did some pr...
Does static constexpr variable inside a function make sense?
...< addr_str.substr(addr_size - offset) << std::endl;
}
// here we test initialization of const variable (runtime)
void const_value(const short counter)
{
static short temp = const_short;
const short const_var = ++temp;
print_properties("const", &const_var, addr_offset);
...
differentiate null=True, blank=True in django
...null=True because it allows two different kinds of "blanky" values. I just tested this behaviour with Django 1.8/MySQL 5.6
– Edward D'Souza
Aug 3 '16 at 17:14
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Calculate last day of month in JavaScript
... it does not even show up on the perf chart: jsperf.com/days-in-month-perf-test/6
– Gone Coding
Feb 23 '15 at 9:47
5
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Can you animate a height change on a UITableViewCell when selected?
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I found a REALLY SIMPLE solution to this as a side-effect to a UITableView I was working on.....
Store the cell height in a variable that reports the original height normally via the tableView: heightForRowAtIndexPath:, then when you wa...
How can I have ruby logger log output to stdout as well as file?
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For those who like it simple:
log = Logger.new("| tee test.log") # note the pipe ( '|' )
log.info "hi" # will log to both STDOUT and test.log
source
Or print the message in the Logger formatter:
log = Logger.new("test.log")
log.formatter = proc do |severity, datetime, progna...
What exactly are DLL files, and how do they work?
... files, ...) that an EXE, or other DLL uses.
Types of libraries:
On virtually all operating systems, there are 2 types of libraries. Static libraries and dynamic libraries. In windows the file extensions are as follows: Static libraries (.lib) and dynamic libraries (.dll). The main difference i...
In R, how to get an object's name after it is sent to a function?
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The old deparse-substitute trick:
a<-data.frame(x=1:10,y=1:10)
test<-function(z){
mean.x<-mean(z$x)
nm <-deparse(substitute(z))
print(nm)
return(mean.x)}
test(a)
#[1] "a" ... this is the side-effect of the print() call
# ... you could have done something...