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Check if PHP session has already started
... @zloctb: I can't think of any situation in which I'd do $_SESSION=array();, so this answer seems okay.
– halfer
Oct 19 '13 at 7:57
5
...
JavaScript style for optional callbacks
... but this doesn't address the type issue isn't it? what if I pass an array? or a String?
– Zerho
Nov 3 '16 at 10:46
1
...
Amazon Interview Question: Design an OO parking lot [closed]
...ace.
CompactParkingSpace is a subclass of ParkingSpace.
ParkingLot keeps array of ParkingSpaces, and a separate array of vacant ParkingSpaces in order of distance from its Entrance.
ParkingLotSign can be told to display "full", or "empty", or "blank/normal/partially occupied" by calling .Full(), ...
Error handling in Bash
... -n "${lines[1]}"
then
array=( ${lines[1]} )
for (( i=2; i<${#array[@]}; i++ ))
do
error_file="$error_file ${array[$i]}"
...
PowerShell: Store Entire Text File Contents in Variable
...ut it wasn't until 3.0 that it got -Raw. Without that, it gets stored as a array of lines.
– jpmc26
Jan 30 '16 at 3:53
...
How to extract the n-th elements from a list of tuples?
...for extracting the second element from a 2-tuple list.
Also, added numpy array method, which is simpler to read (but arguably simpler than the list comprehension).
from operator import itemgetter
elements = [(1,1) for _ in range(100000)]
%timeit second = [x[1] for x in elements]
%timeit second =...
How to execute a bash command stored as a string with quotes and asterisk [duplicate]
...
Use an array, not a string, as given as guidance in BashFAQ #50.
Using a string is extremely bad security practice: Consider the case where password (or a where clause in the query, or any other component) is user-provided; you don...
C++ Const Usage Explanation
...ntee const, however, guarantees that the caller may not modify the int (or array of ints) returned by Method3.
const int*const& becomes int const*const&, so it is a reference to a const pointer to a const int. Passing a const pointer by references male no sense either - you can't modify the...
print call stack in C or C++
...
For a linux-only solution you can use backtrace(3) that simply returns an array of void * (in fact each of these point to the return address from the corresponding stack frame). To translate these to something of use, there's backtrace_symbols(3).
Pay attention to the notes section in backtrace(3)...
Can a C# class inherit attributes from its interface?
...tCustomAttributes( type, typeof( T ), false ).Select( arg => (T)arg ).ToArray();
}
/// <summary>Searches and returns attributes.</summary>
/// <typeparam name="T">The type of attribute to search for.</typeparam>
/// <param name="type">The type which is searched for ...