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val-mutable versus var-immutable in Scala
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var immutable vs. val mutable
In addition to many excellent answers to this question. Here is a simple example, that illustrates potential dangers of val mutable:
Mutable objects can be modified inside methods, that take them as parameters, while reassignment is not allowed...
Pass a data.frame column name to a function
...icipated points of failure. This section of Hadley's Advanced R book is an excellent reference for some of these issues.
If you really want to save the user from typing all those quotes, one option might be to convert bare, unquoted column names to strings using deparse(substitute()):
new_column2 ...
What is the difference between partitioning and bucketing a table in Hive ?
...ng this question, but it keep coming up in my feed.
Navneet has provided excellent answer. Adding to it visually.
Partitioning helps in elimination of data, if used in WHERE clause, where as bucketing helps in organizing data in each partition into multiple files, so as same set of data is always...
Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
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@user3152527 You asked an excellent question (and not a dumb one at worst). But you've fixed it to use .equals, right?
– user2910265
Jan 2 '14 at 6:42
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Foreign Key to multiple tables
...to enforce referential integrity.
Two advantages I see here over Nathan's excellent model (above):
More immediate clarity and simplicity.
Simpler queries to write.
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What's the difference between using “let” and “var”?
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And..+1. That Kyle Simpson article you linked is an excellent read, thank you for that! It is also clear about the "temporal dead zone" aka "TDZ". One interesting thing I'd like to add: I've read on MDN that let and const were recommended to only use when you actually need the...
What use is find_package() if you need to specify CMAKE_MODULE_PATH anyway?
...you probably know your platform, CMAKE_MODULE_PATH, etc, so @user2288008's excellent answer will have you covered.
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Local Storage vs Cookies
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Excellent point. Surprised the security implications of local storage (or lack thereof for XSS) have not been mentioned before on such a well read question - except for one answer which incorrectly IMHO suggests it's more sec...
Explicitly calling return in a function or not
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This is an interesting discussion. I think that @flodel's example is excellent. However, I think it illustrates my point (and @koshke mentions this in a comment) that return makes sense when you use an imperative instead of a functional coding style.
Not to belabour the point, but I would hav...
Is it abusive to use IDisposable and “using” as a means for getting “scoped behavior” for exception
...nt from Eric Gunnerson validates this implementation of "using". I can see excellent points made from both Andras and Eric on this.
– IAbstract
Feb 16 '10 at 19:54
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