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Get type of all variables
... delays caused by round trip casts/coercions that occur when assigning and reading data to and from disk.
Ideology around R's triad typing system:
R's duck typing system has uncertainty in it. As an analogy, consider a ceramic cup, it can be used to hold a liquid, or used as a projectile like a b...
C#: how to get first char of a string?
...0] and MyString.ToCharArray()[0] is that the former treats the string as a read-only array, while ToCharArray() creates a new array. The former will be quicker (along with easier) for almost anything where it will work, but ToCharArray can be necessary if you have a method that needs to accept an ar...
How do I check if there are duplicates in a flat list?
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Before reading this I had tried your_list != list(set(your_list)) which will not work as the order of the elements will change. Using len is a good way to solve this problem
– igniteflow
May 3...
Convert String to Type in C# [duplicate]
...ore information.
Alternatively, if you have a reference to the assembly already (e.g. through a well-known type) you can use Assembly.GetType:
Assembly asm = typeof(SomeKnownType).Assembly;
Type type = asm.GetType(namespaceQualifiedTypeName);
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When to use ' (or quote) in Lisp?
...ielding 5. Our original form is now (* 5 3) yielding 15.
Explain quote Already!
Alright. As seen above, all arguments to a function are evaluated, so if you would like to pass the symbol a and not its value, you don't want to evaluate it. Lisp symbols can double both as their values, and markers...
what is the difference between OLE DB and ODBC data sources?
I was reading a MS Excel help article about pivotcache and wonder what they mean by OLE DB and ODBC sources
11 Answers
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What should every developer know about databases? [closed]
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If you found reading this monster dautning, imagine what it felt like to write it! I didn't set out to write an essay. Once I got started, it just seemed to flow. Whoever added the bolding really helped the readers, IMO.
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Comparing Java enum members: == or equals()?
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Keep in mind that when reading your code, the "==" may appear incorrect to the reader until he/she goes off and looks at the source for the type involved, then sees it's an enum. In that sense, it's less distracting to read ".equals()".
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JavaScript .replace only replaces first Match [duplicate]
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@afeng - I understand that, try and read the entire question though, not the title only...the question is about the .replace() string operator, no jQuery involved, it's a common mix-up, unfortunately.
– Nick Craver♦
Jul ...
Python if-else short-hand [duplicate]
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The most readable way is
x = 10 if a > b else 11
but you can use and and or, too:
x = a > b and 10 or 11
The "Zen of Python" says that "readability counts", though, so go for the first way.
Also, the and-or trick will fai...