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How to present popover properly in iOS 8
... you talk to the view controller inside of it to set the content size, by calling the property preferredContentSize
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How do I reverse an int array in Java?
...ster, but it confuses many programmers and any good compiler will automatically do that.
– Justin
Apr 7 '14 at 18:54
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Express res.sendfile throwing forbidden error
...then call res.sendfile. You can resolve the path with path.resolve beforehand.
var path = require('path');
res.sendFile(path.resolve('temp/index.html'));
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What is the difference between Class Path and Build Path
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The build path is used for building your application. It contains all of your source files and all Java libraries that are required to compile the application.
The classpath is used for executing the application. This includes all java classes and libraries that are needed to run the java ...
Class constants in python
In python, I want a class to have some "constants" (practically, variables) which will be common in all subclasses. Is there a way to do it with friendly syntax?
Right now I use:
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Why should I declare a virtual destructor for an abstract class in C++?
... abstract classes that function as interfaces? Please provide some reasons and examples why.
7 Answers
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sqlalchemy IS NOT NULL select
...s is a better solution because NULL is not a valid as the RHS of != in SQL and using isnot better conveys your intentions for what you want the generated statement to look like.
– Josh
Sep 2 '16 at 16:04
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How should you build your database from source control?
... production environments in deployment scripts?
Use templates, so that actually you would produce different set of scripts for each environment (ex. references to external systems, linked databases, etc)
How do you test that the deployment scripts will work as effectively against production as they ...
Remove refs/original/heads/master from git repo after filter-branch --tree-filter?
... as a backup, in case you mess up your filter-branch. Believe me, it's a really good idea.
Once you've inspected the results, and you're very confident that you have what you want, you can remove the backed up ref:
git update-ref -d refs/original/refs/heads/master
or if you did this to many refs...
Are there any downsides to passing structs by value in C, rather than passing a pointer?
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For small structs (eg point, rect) passing by value is perfectly acceptable. But, apart from speed, there is one other reason why you should be careful passing/returning large structs by value: Stack space.
A lot of C programming ...