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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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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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Why use pip over easy_install? [closed]

...'s easier to sudo easy_install pip. (In general, easy_install pip is a bad idea; it's only for OS X 10.5-10.8 that you want to do this.) Also, 10.5-10.8 include readline in a way that easy_install knows how to kludge around but pip doesn't, so you also want to sudo easy_install readline if you want ...
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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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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 ...
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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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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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When should I use a List vs a LinkedList

...e steps. Specifically timing the inserts and additions would give a better idea. 3) Most importantly, you're adding more than required to a linkedlist. This is a wrong comparison. Spreads wrong idea about linkedlist. – nawfal Jul 2 '14 at 22:18 ...
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An established connection was aborted by the software in your host machine

... Same problem. I had JetBrains IDEA running. Closing IDEA helped. – Nash Oct 10 '12 at 16:50 6 ...
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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 __...