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Why is using onClick() in HTML a bad practice?
...actice, because it's not good for semantics. I would like to know what the downsides are and how to fix the following code?
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Naming returned columns in Pandas aggregate function? [duplicate]
I'm having trouble with Pandas' groupby functionality. I've read the documentation , but I can't see to figure out how to apply aggregate functions to multiple columns and have custom names for those columns.
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What's the Best Way to Shuffle an NSMutableArray?
If you have an NSMutableArray , how do you shuffle the elements randomly?
12 Answers
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How does variable assignment work in JavaScript?
....
a = b = {};
a and b are now pointers to the same object. So when you do:
a.foo = 'bar';
It sets b.foo as well since a and b point to the same object.
However!
If you do this instead:
a = 'bar';
you are saying that a points to a different object now. This has no effect on what a pointe...
what is the difference between GROUP BY and ORDER BY in sql
When do you use which in general? Examples are highly encouraged!
11 Answers
11
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“Register” an .exe so you can run it from any command line in Windows
How can you make a .exe file accessible from any location in the Windows command window? Is there some registry entry that has to be entered?
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Java Runtime.getRuntime(): getting output from executing a command line program
...tdError.readLine()) != null) {
System.out.println(s);
}
Read the Javadoc for more details here. ProcessBuilder would be a good choice to use.
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How to modify a specified commit?
...ds, this rewrites the history from that point forward. You can break repos doing this if you push using the command git push --force
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Can I add jars to maven 2 build classpath without installing them?
...to your local repository it remains there. Your distribution artifact will do fine as long as it has access to this repository. The problem is in most cases this repository will reside on your local machine, so there'll be no way to resolve this dependency on any other machine. Clearly making your a...
Why are exclamation marks used in Ruby methods?
...a simple example for strings:
foo = "A STRING" # a string called foo
foo.downcase! # modifies foo itself
puts foo # prints modified foo
This will output:
a string
In the standard libraries, there are a lot of places you'll see pairs of similarly named methods, one with the ! and ...