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How to change the default charset of a MySQL table?
... to add that usually you don't want to use utf8 but utf8mb4 instead to get what you might expect utf8 to be. To explain: in MySQL utf8 is really just a subset of utf8, which would be better named utf8mb3. It can only encode up to 3 bytes of utf8 characters instead of the up to 4 bytes that are spe...
Swift - Split string over multiple lines
... write "quote marks"
freely inside your strings, which is great!
"""
See what's new in Swift 4 for more information.
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Checking if sys.argv[x] is defined
What would be the best way to check if a variable was passed along for the script:
8 Answers
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How do you push a tag to a remote repository using Git?
...eep lightweight tags for local development to avoid tag clashes. See also: What is the difference between an annotated and unannotated tag?
it won't push annotated tags on unrelated branches
It is for those reasons that --tags should be avoided.
Git 2.4 has added the push.followTags option to turn ...
C++: How to round a double to an int? [duplicate]
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What do you mean by stored as stored as 54.999999...? 55 is exactly representable in binary32 from IEEE 754. Its representation is 0x425c0000. As you can see, it's more than exact: It has plenty of digits to store some fracti...
Difference between two dates in MySQL
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What does "the difference in seconds for days" mean exactly? I don't understand why multiplying the result of TIMEDIFF by 24*60*60 is not equal to the result of TIMESTAMPDIFF.
– David Tuite
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“Java DateFormat is not threadsafe” what does this leads to?
...happen: parsing often involves maintaining a certain amount of state as to what you've read so far. If two threads are both trampling on the same state, you'll get problems. For example, DateFormat exposes a calendar field of type Calendar, and looking at the code of SimpleDateFormat, some methods c...
How does Git handle symbolic links?
... or directory that is a symbolic link and I commit it to a Git repository, what happens to it?
4 Answers
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How do you performance test JavaScript code?
...erformance.now(). Chrome also gives you a timeline view which can show you what is killing your frame rate, where the user might be waiting, etc.
Finding documentation for all these tools is really easy, you don't need an SO answer for that. 7 years later, I'll still repeat the advice of my origina...
How to avoid “ConcurrentModificationException” while removing elements from `ArrayList` while iterat
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What if I wanted to remove something other than the current iteration (say it's on index 2, but I need to remove index 7 at the same time). It gives me a ConcurrentModificationException whenever I try through .remove(index).
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