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What does the (unary) * operator do in this Ruby code?
...t has three objects
ArgumentError: wrong number of arguments (1 for 3)
from (irb):12:in 'func'
from (irb):12
>> func(*list) #But we CAN call func with an unpacked array.
1
2
3
=> nil
That's it!
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Get specific ArrayList item
How can I get a specific item from this ArrayList ? mainList[3] ?
8 Answers
8
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Round double in two decimal places in C#?
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Math.Round(inputValue, 2, MidpointRounding.AwayFromZero)
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Why use apparently meaningless do-while and if-else statements in macros?
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@DawidFerenczy: although both you and me-from-four-and-a-half-years-ago make a good point, we have to live in the real world. Unless we can guarantee that all the if statements, etc, in our code use braces, then wrapping macros like this is a simple way of avoiding ...
Setting default permissions for newly created files and sub-directories under a directory in Linux?
...n creating the file. For example, most files won't be executable by anyone from the start (depending on the mode argument to the open(2) or creat(2) call), just like when using umask. Some utilities like cp, tar, and rsync will try to preserve the permissions of the source file(s) which will mask ou...
Proper package naming for testing with the Go language
...often implementing interfaces. It is those interface methods that I invoke from my tests, not all of the helper methods/functions individually.
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Why is a round-trip conversion via a string not safe for a double?
...7 digits.
Proof: run the following 64-bit code (most of which I extracted from the Microsoft Shared Source CLI 2.0) in your debugger and examine v at the end of main:
#include <stdlib.h>
#include <string.h>
#include <math.h>
#define min(a, b) (((a) < (b)) ? (a) : (b))
struct...
moment.js - UTC gives wrong date
Why does moment.js UTC always show the wrong date. For example from chrome's developer console:
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nServiceBus vs Mass Transit vs Rhino Service Bus vs other?
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I'd recommend staying away from hand-rolled solutions as there is a bunch of somewhat difficult stuff that needs to be gotten just right - like how transactions are handled, how exceptions cause rollbacks, how to stop rolling back endlessly (poison mes...
Best way to implement request throttling in ASP.NET MVC?
...ervers are behind a load balancer, as all of the traffic will appear to be from the same IP address. Unless I am missing something obvious...
– Dscoduc
Sep 30 '19 at 21:35
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