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In CSS what is the difference between “.” and “#” when declaring a set of styles?
...here the style is repeated, e.g. say you head a special form of header for error messages, you could create a style h1.error {} which would only apply to <h1 class="error">
Specificity
Another aspect where selectors differ is in their specificity - an id selector is deemed to be more specifi...
How to convert image to byte array
...e repeatable, or at least after a couple times of converting, strange GDI+ errors start to occur. The ImageConverter solution found below seems to avoid these errors.
– Dave Cousineau
Apr 21 '17 at 22:43
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How to use @Nullable and @Nonnull annotations more effectively?
...tions are only useful for your IDE to warn you of potentially null pointer errors.
As said in the "Clean Code" book, you should check your public method's parameters and also avoid checking invariants.
Another good tip is never returning null values, but using Null Object Pattern instead.
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How to call asynchronous method from synchronous method in C#?
...gureAwait(false) to its await statements, and use solution A.
Update, 2019-05-01: The current "least-worst practices" are in an MSDN article here.
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I am getting Failed to load resource: net::ERR_BLOCKED_BY_CLIENT with Google chrome
...ly Do I need any settings in the browser?
and the link will come after the error
12 Answers
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Retrieve a Fragment from a ViewPager
... a new one?
– carl
Aug 21 '14 at 12:05
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Authenticate Jenkins CI for Github private repository
... Does anyone know how to get deploy hooks working with this? I'm seeing errors akin to Could not match github-deploy-myproject:myuser/myproject in the hook log. I've entered that as my Repo URL and builds do work so it can access GitHub. It's just the post from GitHub that fails to trigger the bu...
How can I develop for iPhone using a Windows development machine?
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edited Dec 5 '19 at 17:05
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How can I capture the result of var_dump to a string?
...port(''); var_export('\'');. And most importantly, get ready for PHP Fatal error: Nesting level too deep - recursive dependency? in C:\path\file.php on line 75
– Pacerier
Mar 25 '15 at 15:12
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Purge or recreate a Ruby on Rails database
...l also need to run rake db:test:prepare for testing, or else you'll get an error like: Could not find table 'things' (ActiveRecord::StatementInvalid)
– s2t2
Feb 17 '13 at 1:49
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