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Will using 'var' affect performance?

... errors if the value doesn't fit. For that reason, it may still be a good idea to be explicit when the value doesn't have an explicit type. So for example, var x = new List<List<Dictionary<int, string>()>()>() would be acceptable, but var x = 42 is somewhat ambiguous and should b...
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Easy way to list node modules I have npm linked?

...-maxdepth 1 -type l -ls Here's an article why parsing ls is not the best idea share | improve this answer | follow | ...
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Is there an SQLite equivalent to MySQL's DESCRIBE [table]?

...ot make sense everytime. In this case (DB handling) of course it not a bad idea to use a wrapper. – Radagast Nov 22 '17 at 19:10 ...
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How To Check If A Key in **kwargs Exists?

Python 3.2.3. There were some ideas listed here , which work on regular var's, but it seems **kwargs play by different rules... so why doesn't this work and how can I check to see if a key in **kwargs exists? ...
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Why is UICollectionViewCell's outlet nil?

... i have the same problem but never used this line of code, you have any idea why i get the same exception? – Dekel Maman Sep 19 '14 at 5:55 ...
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Set a path variable with spaces in the path in a Windows .cmd file or batch file

...les for un-quoting strings (but in this case it's actually not a very good idea since you're adding quotes, stripping them away and re-adding them again without benefit): set MyPath="C:\Program Files\Foo" call :foo %MyPath% goto :eof :foo "%~1\foo.exe" goto :eof The %~1 removes quotation marks a...
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What is difference between Errors and Exceptions? [duplicate]

... generally those from which a program can recover & it might be a good idea to recover from such exceptions programmatically. Examples include FileNotFoundException, ParseException, etc. A programmer is expected to check for these exceptions by using the try-catch block or throw it back to the c...
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Iterating each character in a string using Python

... something with line If that seems like magic, well it kinda is, but the idea behind it is really simple. There's a simple iterator protocol that can be applied to any kind of object to make the for loop work on it. Simply implement an iterator that defines a next() method, and implement an __...
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Make anchor link go some pixels above where it's linked to

... the same anchor again, there is no hashchange so it won't use the offset. Ideas? – Teo Maragakis Jun 4 '15 at 9:55 Yo...
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Rails 4 multiple image or file upload using carrierwave

...e of the create! method. but using create instead just fails silently. Any idea how to have the validation happen on the post reach into the attachments? – dchess Jul 26 '16 at 23:51 ...