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Booleans, conditional operators and autoboxing
...in E1!) and boolean respectively, so no specific typing clause applies (go read 'em!), so the final "otherwise" clause applies:
Otherwise, the second and third operands are of types S1 and S2 respectively. Let T1 be the type that results from applying boxing conversion to S1, and let T2 be the t...
How to convert a data frame column to numeric type?
... not the most confounding thing, but it can confuse you, especially if you read this before rolling into bed.
Here goes: first two columns are character. I've deliberately called 2nd one fake_char. Spot the similarity of this character variable with one that Dirk created in his reply. It's actually...
Cannot use ref or out parameter in lambda expressions
... It doesn't; question is why you can not reference an existing variable, already defined ref or out, inside a lambda. It is clear if you read the example code (try again to read it again). The accepted answer clearly explain why. Your answer is about using ref or out parameter to the lambda. Totally...
How do you merge two Git repositories?
...history, blame some changes.
git log <rev>
git blame <rev> -- README.md
Note that you can't see the directory prefix from here since this is an actual old branch left intact.
You should treat this like a usual file move commit: you will need an extra jump when reaching it.
# finishes...
Proper way to wait for one function to finish before continuing?
...ne, in my experience they tend to result in code that is more difficult to read and maintain. There are situations where I still use them though, such as to pass in progress events and the like as parameters. This update is just to emphasise alternatives.
Also the original question doesn't specific...
PHP: Storing 'objects' inside the $_SESSION
... Nice answer incorporating a lot of my own thoughts as I've been reading through this. The modern internet needs state. While some applications don't need state and make sense to make in a stateless manner, the modern internet relies on too many systems that are based on state (AKA: Log...
Use of Initializers vs Constructors in Java
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Just to add to some already excellent points here. The static initializer is thread safe. It is executed when the class is loaded, and thus makes for simpler static data initialization than using a constructor, in which you would need a synchroni...
How to match all occurrences of a regex
...ure support"
"How to find out the starting point for each match in ruby"
Reading about special variables $&, $', $1, $2 in Ruby will be helpful too.
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When should I use git pull --rebase?
...orks on it
Alice does git checkout master && git pull. Master is already up to date.
Bob does git checkout master && git pull. Master is already up to date.
Alice does git merge topic-branch-A
Bob does git merge topic-branch-B
Bob does git push origin master before Alice
Alice does g...
Best design for a changelog / auditing database table? [closed]
...his column would hold event details (of whatever complexity) in a computer-readable format, XML / JSON. Easy to serialize, to query against (at least in Postgres / MSSQL), to reason about.
– turdus-merula
Feb 25 '18 at 23:42
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