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Do try/catch blocks hurt performance when exceptions are not thrown?

... { Console.WriteLine(ex.ToString()); } finally { d = Math.Sin(d); } } w.Stop(); Console.Write(" try/catch/finally: "); Console.WriteLine(w.ElapsedMilliseconds); w.Reset(); d = 0; w.Start(); for (int i = ...
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Android hide listview scrollbar?

... Hi all, I want to hide scrollbar in listview. here your mention line for getting this work but I didn't catchup where can I write this line, I am working on xamarn forms. – Deepak Oct 3 '17...
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PDO's query vs execute

... query runs a standard SQL statement and requires you to properly escape all data to avoid SQL Injections and other issues. execute runs a prepared statement which allows you to bind parameters to avoid the need to escape or quote the parameters. execute will also perform better if you are repeat...
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adding header to python requests module

... You can also do this to set a header for all future gets for the Session object, where x-test will be in all s.get() calls: s = requests.Session() s.auth = ('user', 'pass') s.headers.update({'x-test': 'true'}) # both 'x-test' and 'x-test2' are sent s.get('http://h...
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Transactions in .net

...in C# .Net 2.0. What are the classes that should be used? What are the pitfalls to look out for etc. All that commit and rollback stuff. I'm just starting a project where I might need to do some transactions while inserting data into the DB. Any responses or links for even basic stuff about transact...
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How can I delete a git alias?

...set alias.trololo warning: alias.trololo has multiple values Use --unset-all git config --global --unset-all share | improve this answer | follow | ...
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mysql create user if not exists

...alhost' IDENTIFIED BY 'password'; Note that the 5.7.6 method doesn't actually grant any permissions. If you aren't using a version which has this capability (something below 5.7.6), you can do the following: GRANT ALL ON `database`.* TO 'user'@'localhost' IDENTIFIED BY 'password'; This will ...
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finding the type of an element using jQuery

... When using $("#elementId").get(0).tagName the tagName will be in all caps - TR, DIV etc etc – Jarede Oct 18 '12 at 14:41 7 ...
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Overriding Binding in Guice

...er be injecting mock or fake objects by hand. On the other hand, if you really want to replace a single binding, you could use Modules.override(..): public class ProductionModule implements Module { public void configure(Binder binder) { binder.bind(InterfaceA.class).to(ConcreteA.class...
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Python Regex instantly replace groups

Is there any way to directly replace all groups using regex syntax? 2 Answers 2 ...