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How to set UICollectionViewDelegateFlowLayout?
...NSCollectionViewDelegateFlowLayout**
{
the method:
func collectionView(_ collectionView: NSCollectionView,
layout collectionViewLayout: NSCollectionViewLayout,
sizeForItemAt indexPath: IndexPath) -> NSSize
will be called.
If removed, no delegate meth...
How to use putExtra() and getExtra() for string data
...een.this, SecondScreen.class);
String strName = null;
i.putExtra("STRING_I_NEED", strName);
Then, to retrieve the value try something like:
String newString;
if (savedInstanceState == null) {
Bundle extras = getIntent().getExtras();
if(extras == null) {
newString= null;
} e...
Convert NSDate to NSString
...less ARC is active
[formatter release];
Swift 4.2 :
func stringFromDate(_ date: Date) -> String {
let formatter = DateFormatter()
formatter.dateFormat = "dd MMM yyyy HH:mm" //yyyy
return formatter.string(from: date)
}
...
How to print (using cout) a number in binary form?
...
Thanks Jerry, I discovered to_string minutes later. FYI, casting doesn't work, the bitset variable is an object of some really arcane-looking bitset3ul (?!) class. Best to let the abstractions do the work!
– nirvanaswap
...
How can I calculate the difference between two dates?
...fference between two dates in days.
#1. Using Calendar's dateComponents(_:from:to:) method
import Foundation
let calendar = Calendar.current
let startDate = calendar.date(from: DateComponents(year: 2010, month: 11, day: 22))!
let endDate = calendar.date(from: DateComponents(year: 2015, month: ...
How do I restore a missing IIS Express SSL Certificate?
...ut the MSI file where Control Panel expects it to be. However, there is a _package.json file in that same directory, and it contains the URL of the MSI file. You may either run that manually or copy it to where Control Panel expects it.
– Chris R. Donnelly
J...
Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
...Available overloads are 1, 2 or 3 object parameters, 4 object parameters + __arglist and a params object array version.
– Wormbo
May 30 '12 at 17:20
...
How to ssh to vagrant without actually running “vagrant ssh”?
...=/dev/null \
-o StrictHostKeyChecking=no \
-i ~/.vagrant.d/insecure_private_key \
vagrant@localhost \
-p $PORT \
"$@"
As a one-liner (with thanks to kgadek):
ssh $(vagrant ssh-config | awk 'NR>1 {print " -o "$1"="$2}') localhost
To account for when you have more than one ...
unix - head AND tail of file
... 10; my @buf = (); while (<>) { print if $. <= $size; push(@buf, $_); if ( @buf > $size ) { shift(@buf); } } print "------\n"; print @buf;'
share
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How do I use boolean variables in Perl?
...n true and false, so not only does it have booleans, it has true (!0 aka PL_sv_yes) and false (!1 aka PL_sv_no). Or are you saying Perl should croak whenever something other than these two values are tested for truthness? That would be completely awful. e.g. It would prevent $x ||= $default;
...