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Initializing IEnumerable In C#
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Old now, but I would avoid the second option. You might want this to interact with other IEnumerables that are not compatible with arrays.
– Joel Coehoorn
Oct 5 '18 at 14:23
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Difference between null and empty (“”) Java String
... a method to execute if it was), but i never understood why it worked, but now i see what it was saying, i was checking for whether MediaPlayer had been instantiated or not, by using null... e.g if (mp==null){do something}.
– Azurespot
May 18 '14 at 3:05
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event.returnValue is deprecated. Please use the standard event.preventDefault() instead
... more see this warning (and other IEish bugs)..
It's a question of time (now IE8 has 10% worldwide share, once it reaches 1% it is DEAD), meanwhile, just ignore the warning and stay zen :)
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Pointer expressions: *ptr++, *++ptr and ++*ptr
...ment. Similarly p++ is going to evaluate to the current value of p. As we know, the current value of p is the address of 'H'.
So now the p++ part of *p++ has been evaluated; it's the current value of p. Then the * part happens. *(current value of p) means: access the value at the address held by p...
UITableView - scroll to the top
... try to put the code inside this: DispatchQueue.main.asyncAfter(deadline: .now()+0.1, execute: { // the code }
– Alessandro Ornano
Mar 12 '18 at 20:55
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How to get Sinatra to auto-reload the file after each change?
...eed to install rerun if you haven’t already:
$ gem install rerun
Now if you start your Sinatra app like this:
$ ruby app.rb
All you have to do for reloading is instead do this:
$ rerun 'ruby app.rb'
If you are for instance using rackup, instead do
the following:
$ reru...
How do you return from 'gf' in Vim
I am using Vim for windows installed in Unix mode. Thanks to this site I now use the gf command to go to a file under the cursor.
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Converting a date string to a DateTime object using Joda Time library
...d format: "31. Januar 2013 06:38:08 MEZ" is malformed at "MEZ". Is this a known issue? How can I avoid it? Regards.
– Danyel
Jan 31 '13 at 5:40
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How do you specify that a class property is an integer?
... everything, including int - but once you are dealing with something of a known type, you'll get sensible intelliSense.
Examples
var myInt: number;
var myString: string;
myInt. // toExponential, toFixed, toPrecision, toString
myString. // charAt, charCodeAt, concat, indexOf, lastIndexOf, length a...
How exactly does the callstack work?
...s stored in the EBP register. The offsets, on the other hand, are clearly known at compile time and are therefore hardcoded into the machine code.
This graphic from Wikipedia shows what the typical call stack is structured like1:
Add the offset of a variable we want to access to the address cont...