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What is the difference between lock and Mutex?
What is the difference between lock and Mutex? Why can't they be used interchangeably?
7 Answers
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Does MySQL ignore null values on unique constraints?
I have an email column that I want to be unique. But I also want it to accept null values. Can my database have 2 null emails that way?
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When to use cla(), clf() or close() for clearing a plot in matplotlib?
Matplotlib offers there functions:
3 Answers
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How to reduce iOS AVPlayer start delay
Note, for the below question: All assets are local on the device -- no network streaming is taking place. The videos contain audio tracks.
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updating table rows in postgres using subquery
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Which is generally best to use — StringComparison.OrdinalIgnoreCase or StringComparison.InvariantCul
I have some code like this:
5 Answers
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How to keep Maven profiles which are activeByDefault active even if another profile gets activated?
I have a profile in my pom.xml which should be always active unless it is explicitely deactivated (-P !firstProfile).
I solved this by using the activeByDefault flag:
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JavaScript click event listener on class
I'm currently trying to write some JavaScript to get the attribute of the class that has been clicked. I know that to do this the correct way, I should use an event listener.
My code is as follows:
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Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
The section "Avoid Enums Where You Only Need Ints" was removed from the official developer documentation . (See Why doesn't Android use more enums? for the old section content)
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