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What are important languages to learn to understand different approaches and concepts? [closed]
...est at what it does. Plus... it's really fun!
Functional+Optional Types, Qi - You say you've experience with some type systems, but do you have experience with "skinnable* type systems? No one has... but they should. Qi is like Lisp in many ways, but its type system will blow your mind.
Actors+...
Static Vs. Dynamic Binding in Java
... @technazi static binding just looks at the type (what ever is before the equals e.g Collection c = new HashSet(); so it will be seen as just a collection object when infact it is a hashset). Dyanmic binding takes into account the actual object (whats after the equals so it actually recognises its a...
Getting exact error type in from DbValidationException
...
While you are in debug mode within the catch {...} block open up the "QuickWatch" window (ctrl+alt+q) and paste in there:
((System.Data.Entity.Validation.DbEntityValidationException)ex).EntityValidationErrors
This will allow you to drill down into the ValidationErrors tree. It's the easiest ...
Left-pad printf with spaces
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And, to address the last part of the Q: yes, if you want each line of the data to be printed with 40 leading spaces, then you do need to segment the data so that each line is printed separately.
– Jonathan Leffler
Nov 16 '0...
How to move a git repository into another directory and make that directory a git repository?
...ry and anything git from it
$ rm -rf gitrepo1/.git
Note that the copy is quite expensive if the repository is large and with a long history. You can avoid it easily too:
# move the directory instead
$ mv gitrepo1 newrepo
# make a copy of the latest version
# Either:
$ mkdir gitrepo1; cp -r newre...
How to make a HTML Page in A4 paper size page(s)?
... is not valid CSS3, which is indeed correct — I merely repeated the code quoted in the article which (as noted) was good old CSS2 (which makes sense when you look at the year the article and this answer were first published). Anyway, here's the valid CSS3 code for your copy-and-paste convenience:
...
Why exactly is eval evil?
...PPLY - call a function with a list as the arguments: (apply '+ '(1 2 3)).
Q: do I really need eval or does the compiler/evaluator already what I really want?
The main reasons to avoid EVAL for slightly more advanced users:
you want to make sure that your code is compiled, because the compiler can ...
Does pandas iterrows have performance issues?
... df.apply(lambda x: x['b'] + 1) will be executed in Python space, and consequently is much slower.
4) itertuples does not box the data into a Series. It just returns the data in the form of tuples.
5) iterrows DOES box the data into a Series. Unless you really need this, use another method.
6) Up...
What is the difference between SqlCommand.CommandTimeout and SqlConnection.ConnectionTimeout?
Is there any difference between SqlCommand.CommandTimeout and SqlConnection.ConnectionTimeout in .NET?
6 Answers
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Multiple commands in gdb separated by some sort of delimiter ';'?
... like:
$ gdb ./prog -ex 'b srcfile.c:90' -ex 'b somefunc' -ex 'r -p arg1 -q arg2'
This coupled with display and other commands makes running gdb less cumbersome.
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