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Test if number is odd or even
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While all of the answers are good and correct, simple solution in one line is:
$check = 9;
either:
echo ($check & 1 ? 'Odd' : 'Even');
or:
echo ($check % 2 ? 'Odd' : 'Even');
works very well.
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Call a function from another file?
...d file.py while importing. Just write from file import function, and then call the function using function(a, b). The reason why this may not work, is because file is one of Python's core modules, so I suggest you change the name of your file.
Note that if you're trying to import functions from a.p...
What does “opt” mean (as in the “opt” directory)? Is it an abbreviation? [closed]
...kages; i.e. packages that you might have paid extra money for. I don't recall seeing "/opt" on Berkeley BSD UNIX. They used "/usr/local" for stuff that you installed yourself.
But of course, the true "meaning" of the different directories has always been somewhat vague. That is arguably a good t...
Function to calculate distance between two coordinates
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What you're using is called the haversine formula, which calculates the distance between two points on a sphere as the crow flies. The Google Maps link you provided shows the distance as 2.2 km because it's not a straight line.
Wolphram Alpha is...
Functional programming vs Object Oriented programming [closed]
...zations (new operations on things). Compilation and translation more generally are "killer apps" for functional languages.
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Listing each branch and its last revision's date in Git
... And faster.
See also "Name only option for git branch --list?"
More generally, tripleee reminds us in the comments:
Prefer modern $(command substitution) syntax over obsolescent backtick syntax.
(I illustrated that point in 2014 with "What is the difference between $(command) and `com...
How do I get LaTeX to hyphenate a word that contains a dash?
...mmand a command that expands to multi-discipli\-nary (use Search + Replace All to replace existing words).
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Retrieve column names from java.sql.ResultSet
...be the same as the value returned by the getColumnName method.". In almost all case you should use getColumnLabel instead of getColumnName.
– Mark Rotteveel
Aug 17 '18 at 7:15
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Compile Views in ASP.NET MVC
...nclude the RazorGenerator nuget package in you ASP.NET MVC project and install the "Razor Generator" extension under item under Tools → Extensions and Updates.
We use this and the overhead per compile with this approach is much less. On top of this I would probably recommend .NET Demon by RedGate...
Return multiple values in JavaScript?
... second} = getValues();
* See this table for browser compatibility. Basically, all modern browsers aside from IE support this syntax, but you can compile ES6 code down to IE-compatible JavaScript at build time with tools like Babel.
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