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How to change value of process.env.PORT in node.js?
... This is probably the best solution. There's way too much margin for error with the different terminals. I spent like 40 minutes until I found cross-env abstracts this problem away and just works.
– adi518
Jun 16 '18 at 11:41
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What is Haskell used for in the real world? [closed]
...ation is a really nice feature:
Even if something would usually cause an error, it will still work as long as you don't use the result. For example, you could put 1 / 0 as the first item of a list and it will still work if you only used the second item.
It is easier to write search programs such a...
Declaring pointers; asterisk on the left or right of the space between the type and name? [duplicate
...t the first time you type two->doSomething() you will instantly see the error you made in any modern IDE so this really isn't a big deal.
– Andreas
Oct 20 '17 at 6:25
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Is it bad practice to use Reflection in Unit testing? [duplicate]
...to understand and maintain, is also more fragile. There are a whole set of errors which in the normal case would be detected by the compiler, but with Reflection they crop up as runtime exceptions only.
Update: as @tackline noted, this concerns only using Reflection within one's own test code, not ...
Check if item is in an array / list
... This works with Python2. With Python 3.7, you will get this error: TypeError: object of type 'filter' has no len()
– Jun711
Sep 20 '19 at 19:59
add a comment
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Difference between Service, Async Task & Thread?
...sk interrupting the UI responsiveness and throw Application Not Responding errors. A service wrt Android is essentially an 'invisible' and 'miniature' Activity, NOT necessarily a 'background' worker.
– CCJ
Mar 28 '13 at 20:30
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In-place edits with sed on OS X
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When I try that on mac, I get an error that says "sed: -i may not be used with stdin".
– Christopher Bradshaw
Aug 12 at 23:38
add a c...
function declaration isn't a prototype
...ly call testlib with one or more arguments, the compiler will diagnose the error.
(C++ has slightly different rules. C++ doesn't have old-style function declarations, and empty parentheses specifically mean that a function takes no arguments. C++ supports the (void) syntax for consistency with C. B...
Immediate Child selector in LESS
...amp;:hover is essential over :hover otherwise it would result in syntactic error. However, there is no such syntactic requirement for using '&' here. Otherwise all nestings would require '&' as they are essentially referring to parent.
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Right way to reverse pandas.DataFrame?
...index):
print(idx, data.Even[idx], data.Odd[idx])
You are getting an error because reversed first calls data.__len__() which returns 6. Then it tries to call data[j - 1] for j in range(6, 0, -1), and the first call would be data[5]; but in pandas dataframe data[5] means column 5, and there is ...