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How to parse a string into a nullable int
...eturn null;
}
Edit @Glenn int.TryParse is "built into the framework". It and int.Parse are the way to parse strings to ints.
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How can I create download link in HTML?
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@Dudeson please specify what "won't work" and which version(s) of IE you are talking about. (It is now safe to use the approach described TIIUNDER's much more recent answer below, though. It should get the accept mark.)
– Pekka
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New self vs. new static
I am converting a PHP 5.3 library to work on PHP 5.2. The main thing standing in my way is the use of late static binding like return new static($options); , if I convert this to return new self($options) will I get the same results?
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Very slow compile times on Visual Studio 2005
...udio 2005, you will find the option in Tools > Options... > Projects and Solutions > Build and Run > maximum number of parallel project builds.
Disable your anti-virus software for .ilk, .pdb, .cc, .h files and only check for viruses on modify. Disable scanning the directory where your...
How to do associative array/hashing in JavaScript
...h new Array() is frowned up. The article eventually mentions its drawbacks and suggests new Object() or {} as preferred alternatives, but that's near the end and I fear most readers won't get that far.
– Daniel Lubarov
May 16 '15 at 5:55
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Authenticate Jenkins CI for Github private repository
...h that task.. Tried the documentation, generating ssh-key for jenkins user and all what I can see is: "unable to clone the repo". I've checked URLs - they are valid.
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Create PostgreSQL ROLE (user) if it doesn't exist
...sword';
END IF;
END
$do$;
(Building on @a_horse_with_no_name's answer and improved with @Gregory's comment.)
Unlike, for instance, with CREATE TABLE there is no IF NOT EXISTS clause for CREATE ROLE (up to at least pg 12). And you cannot execute dynamic DDL statements in plain SQL.
Your reques...
How can you make a custom keyboard in Android?
I want to make a custom keyboard. I don't know how to do it using XML and Java. The following picture is a model of the keyboard I want to make. It only needs numbers.
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How do you crash a JVM?
...e JVM immediately without proper cleanup. But apart from that, native code and resource exhaustion are the most likely answers. Alternatively you can go looking on Sun's bug tracker for bugs in your version of the JVM, some of which allow for repeatable crash scenarios. We used to get semi-regular c...
arrow operator (->) in function heading
...declaration:
return-type identifier ( argument-declarations... )
and
auto identifier ( argument-declarations... ) -> return_type
They are equivalent. Now when they are equivalent, why do you ever want to use the latter? Well, C++11 introduced this cool decltype thing that lets...