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Shell equality operators (=, ==, -eq)
... ]; echo "$?" # wrong
-bash: [: foo: integer expression expected
2
(Side note: Quote those variable expansions! Do not leave out the double quotes above.)
If you're writing a #!/bin/bash script then I recommend using [[ instead. The doubled form has more features, more natural syntax, and few...
Why can't I use Docker CMD multiple times to run multiple services?
...XPOSE, but contrary to e.g. RUN and ADD. By this, I mean that you can override it later, in an extending Dockerfile, or simple in your run command, which is what you are experiencing. At all times, there can be only one CMD.
If you want to run multiple services, I indeed would use supervisor. You c...
What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
...Pad, so can't test them in 1.9, but some of those gotchas are no longer valid in recent ruby versions, right?
– Denis de Bernardy
Jun 22 '11 at 18:59
13
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Scala: List[Future] to Future[List] disregarding failed futures
...collect{ case Success(x) => x} instead of _.filter(_.isSuccess) to get rid of Try in type of futureListOfSuccesses.
– senia
Jan 2 '14 at 6:35
43
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Removing projects in Sublime Text 2 and 3
... tie in and the behavior overall. I was slightly puzzled the first time I did it too.
– Valjas
Aug 1 '12 at 14:59
3
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Git: what is a dangling commit/blob and where do they come from?
... intermediary blobs, and even some things that git does for you to help avoid loss of information.
Eventually (conditionally, according to the git gc man page) it will perform garbage collection and clean these things up. You can also force it by invoking the garbage collection process, git gc.
F...
What is the difference between javac and the Eclipse compiler?
...ne notable difference is that the Eclipse compiler lets you run code that didn't actually properly compile. If the block of code with the error is never ran, your program will run fine. Otherwise, it will throw an exception indicating that you tried to run code that doesn't compile.
Another differ...
Clean up a fork and restart it from the upstream
...ster branch (both locally, because of the reset --hard, and on the remote side, because of the push --force).
An alternative would be, if you want to preserve your commits on master, to replay those commits on top of the current upstream/master.
Replace the reset part by a git rebase upstream/maste...
What's the point of map in Haskell, when there is fmap?
Everywhere I've tried using map , fmap has worked as well. Why did the creators of Haskell feel the need for a map function? Couldn't it just be what is currently known as fmap and fmap could be removed from the language?
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Repeater, ListView, DataList, DataGrid, GridView … Which to choose?
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It's really about what you trying to achieve
Gridview - Limited in design, works like an html table. More in built functionality like edit/update, page, sort. Lots of overhead.
DataGrid - Old version of the Gridview. A gridview is a super datagrid.
Datalist - more custom...