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How and when to use ‘async’ and ‘await’
From my understanding one of the main things that async and await do is to make code easy to write and read - but is using them equal to spawning background threads to perform long duration logic?
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How do you use an identity file with rsync?
This is the syntax I think I should be using with rsync to use an identity file to connect:
6 Answers
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How to empty (“truncate”) a file on linux that already exists and is protected in someway?
I have a file called error.log on my server that I need to frequently truncate. I have rw permissions for the file. Opening the file in vi > deleting all content > saving works (obviously). But when I try the below
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Install .ipa to iPad with or without iTunes
I have the .ipa from PhoneGap build and I need to test it. I got provisioning profile from Developer account.
25 Answers
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Visual Studio hot keys change occasionally, specifically F6 vs Ctrl-Shift-B for building. WHY?
I always press F6 to build my project. Suddenly some of my Visual Studio instances are wanting me to use Ctrl - Shift - B . It's not keyboard related - the actual text of the menu option changes from " F6 " to " Ctrl - Shift - B ".
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Override compile flags for single files
I would like to use a global set of flags for compiling a project, meaning that at my top-level CMakeLists.txt file I have specified:
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SQL JOIN vs IN performance?
I have a case where using a JOIN or an IN will give me the correct results... Which typically has better performance and why? How much does it depend on what database server you are running? (FYI I am using MSSQL)
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Glorified classes in the Java language
Some classes in the standard Java API are treated slightly different from other classes. I'm talking about those classes that couldn't be implemented without special support from the compiler and/or JVM.
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How do I include a newline character in a string in Delphi?
I want to create a string that spans multiple lines to assign to a Label Caption property. How is this done in Delphi?
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How to tell if a JavaScript function is defined
How do you tell if a function in JavaScript is defined?
21 Answers
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