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What's the difference between utf8_general_ci and utf8_unicode_ci?
...justify the performance cost. Today, that performance cost has all but disappeared, and developers are treating internationalization more seriously.
There's an argument to be made that if speed is more important to you than accuracy, you may as well not do any sorting at all. It's trivial to make ...
When to use EntityManager.find() vs EntityManager.getReference() with JPA
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@Arthur Ronald what happens if there is a Version annotation in the entity called by getReference?
– David Hofmann
Mar 25 '16 at 13:28
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Position icons into circle
...for showing the angles whenever you hover one of them).
You first need a wrapper. I set its diameter to be 24em (width: 24em; height: 24em; does that), you can set it to whatever you want. You give it position: relative;.
You then position your links with the images in the center of that wrapper, bo...
java get file size efficiently
...the available() method returns an int should be a red flag against the URL approach. Try it with a 3GB file and it will be obvious that it is not a valid way to determine the file length.
– Scrubbie
May 30 '14 at 18:44
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Why no ICloneable?
... do not take into account it is a part of .NET framework, not part of your application. so if you make a class that does not do deep cloning, then someone else makes a class that does do deep cloning and calls Clone on all its parts, it will not work predictably -- depending on whether that part was...
How do I adjust the anchor point of a CALayer, when Auto Layout is being used?
...make the mistake of triggering layout at the time that a view transform is applied.]
Autolayout vs. View Transforms
Autolayout does not play at all well with view transforms. The reason, as far as I can discern, is that you're not supposed to mess with the frame of a view that has a transform (oth...
Approximate cost to access various caches and main memory?
Can anyone give me the approximate time (in nanoseconds) to access L1, L2 and L3 caches, as well as main memory on Intel i7 processors?
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Invalidating JSON Web Tokens
... working on, I'm thinking about switching over from a cookie based session approach (by this, I mean, storing an id to a key-value store containing user sessions in a user's browser) to a token-based session approach (no key-value store) using JSON Web Tokens (jwt).
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How to unit test a Node.js module that requires other modules and how to mock the global require fun
... good things. It saved me! I was tasked to write jasmine-node tests for an app developed in appcelerator Titanium which forces some modules to be absolute paths and many circular dependancies. proxyquire let me stop gap those and mock out the cruft I didn't need for each test. (Explained here). Than...
Domain Driven Design: Domain Service, Application Service
Can someone explain the difference between domain and application services by providing some examples? And, if a service is a domain service, would I put the actual implementation of this service within the domain assembly and if so, would I also inject repositories into that domain service? Some in...