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Benefits of using the conditional ?: (ternary) operator
...This is pretty much covered by the other answers, but "it's an expression" doesn't really explain why that is so useful...
In languages like C++ and C#, you can define local readonly fields (within a method body) using them. This is not possible with a conventional if/then statement because the val...
Long vs Integer, long vs int, what to use and when?
...tical world where Java behaved completely differently from how it actually does, and passing an object or array to a function resulted in a totally separate copy (where modifications inside the function weren't reflected to callers at all), how would you then describe the language? Keeping in mind t...
Eclipse git checkout (aka, revert)
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What if the file doesn't exist in the workspace (yet/any more)?
– zedoo
Sep 4 '14 at 9:59
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How can I display an RTSP video stream in a web page?
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Update: Apparently doesn't work now. Shows this: "This camera cannot be embedded. Switch to Standard or Professional package for embedding."
– muglikar
Apr 23 '17 at 19:55
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Uninstall / remove a Homebrew package including all its dependencies
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brew rm $(join <(brew leaves) <(brew deps FORMULA)) does the job well. You just have to run it again and again until all dependencies are removed. It cannot uninstall everything at once because dependencies are inter-depending each others.
– Greg Wang
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What does the ??!??! operator do in C?
I saw a line of C that looked like this:
4 Answers
4
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How do I partially update an object in MongoDB so the new object will overlay / merge with the exist
... parameter. There's a multi option (which is what you linked to), but that does not affect how fields are updated. It controls whether you update a single document, or all documents that match the query parameter.
– Bob Kerns
May 25 '16 at 0:09
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Using Mockito to test abstract classes
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As noted below, this doesn't work when the abstract class calls abstract methods in order to be tested, which is often the case.
– Richard Nichols
Aug 6 '12 at 3:34
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Equals(=) vs. LIKE
...d, which implies that = is not strictly a string comparison function.
How Does = Work?
The SQL Standard § 8.2 describes how = compares strings:
The comparison of two character strings is determined as follows:
a) If the length in characters of X is not equal to the length
in characters...
Simple way to calculate median with MySQL
...iant. The part I don't follow is the (SELECT @rownum:=0) r -- what purpose does this serve?
– Shanemeister
Jun 1 '17 at 16:40
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