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MySql: Tinyint (2) vs tinyint(1) - what is the difference?
... allowing anything above 9999). Guess I always thought wrong then. In both PHP and MySQL command line I see the value above it fine.
– Joshua Bakker
Jul 11 '19 at 8:58
add a c...
Throttling method calls to M requests in N seconds
...ed a component/class that throttles execution of some method to maximum M calls in N seconds (or ms or nanos, does not matter).
...
Design by contract using assertions or exceptions? [closed]
...
Personally I prefer asserts for design by contract approaches. Exceptions are defensive and are doing the argument checking inside the function. Also, dbc preconditions don't say "I won't work if you use values out of the working r...
Lambda capture as const reference?
...t isn't in the grammar for captures as of n3092:
capture:
identifier
& identifier
this
The text only mention capture-by-copy and capture-by-reference and doesn't mention any sort of const-ness.
Feels like an oversight to me, but I haven't followed the standardization process very close...
How can I convert JSON to a HashMap using Gson?
...format. Casting a HashMap into JSON when making the request wasn't hard at all but the other way seems to be a little tricky. The JSON response looks like this:
...
Is there a way to provide named parameters in a function call in JavaScript?
... developers rely on type / argument hints within our IDE. I personally use PHP Storm (Along with other JetBrains IDEs like PyCharm for python and AppCode for Objective C)
And the biggest problem with using the "Pass an object" trick is that when you are calling the function, the IDE gives you a sin...
Throwing exceptions from constructors
...ody who creates the object of mutex has to remember that init() has to be called. I feel it goes against the RAII principle.
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Formatting a float to 2 decimal places
...
Just in case you're unsure (I was), all of these ways for formatting a float value do provide rounding.
– RenniePet
Nov 12 '17 at 15:03
...
Logical XOR operator in C++?
...you want to mimic the general behavior of other logical operators (|| and &&) with your XOR. There are two important things about these operators: 1) they guarantee short-circuit evaluation, 2) they introduce a sequence point, 3) they evaluate their operands only once.
XOR evaluation, as yo...
Using unset vs. setting a variable to empty
... comments above, here is a simple test:
isunset() { [[ "${!1}" != 'x' ]] && [[ "${!1-x}" == 'x' ]] && echo 1; }
isset() { [ -z "$(isunset "$1")" ] && echo 1; }
Example:
$ unset foo; [[ $(isunset foo) ]] && echo "It's unset" || echo "It's set"
It's unset
$ foo= ...