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Extract first item of each sublist
... the best way to extract the first item of each sublist in a list of lists and append it to a new list. So if I have:
7 Ans...
How to activate JMX on my JVM for access with jconsole?
...of course, I also tried to add Dcom.sun.management.jmxremote.rmi.port=9011 and open in firewall - still cant connect with the firewall being up. Any thoughts? Have I missed anything?
– Carmageddon
Dec 6 '18 at 15:05
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Static implicit operator
...this code:
XmlBase myBase = new XmlBase();
XElement myElement = myBase;
And the compiler won't complain! At runtime, the conversion operator will be executed - passing myBase in as the argument, and returning a valid XElement as the result.
It's a way for you as a developer to tell the compiler:...
Trying to understand CMTime and CMTimeMake
1) CMTimeMake(1,10) means duration of 1 second and timescale of 10, or 10 frames per second. This means 1s duration of video with 10 frames?
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How can I make the computer beep in C#?
...p().
// Default beep
Console.Beep();
You can also specify the frequency and length of the beep in milliseconds.
// Beep at 5000 Hz for 1 second
Console.Beep(5000, 1000);
For more information refer http://msdn.microsoft.com/en-us/library/8hftfeyw%28v=vs.110%29.aspx
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How to compare types
...pun not intended) with another type in C#?
I mean, I've a Type typeField and I want to know if it is System.String , System.DateTime , etc., but typeField.Equals(System.String) doesn't work.
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MongoDB: How to query for records where field is null or not set?
...not set then:
db.emails.count({sent_at: {$exists: false}})
If its there and null, or not there at all:
db.emails.count({sent_at: null})
Refer here for querying and null
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What is the difference between `-fpic` and `-fPIC` gcc parameters?
I've already read the gcc manpage, but I still can't understand the difference between -fpic and -fPIC . Can someone explain it, in a very simple and clear way?
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Using HTML5/JavaScript to generate and save a file
I've been fiddling with WebGL lately, and have gotten a Collada reader working. Problem is it's pretty slow (Collada is a very verbose format), so I'm going to start converting files to a easier to use format (probably JSON). I already have the code to parse the file in JavaScript, so I may as well ...
Should I Stop Stopwatch at the end of the method?
... It doesn't prevent anything, he's creating the stopwatch in the method and not returning it, so he won't be able to get a hold of it later to "make mistakes with".
– Ronan Thibaudau
Jun 10 '14 at 12:23
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