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Why are Perl 5's function prototypes bad?
...like this:
sub mypush(\@@) { ... }
and call it as
mypush @array, 1, 2, 3;
without needing to write the \ to take a reference to the array.
In a nutshell, prototypes let you create your own syntactic sugar. For example the Moose framework uses them to emulate a more typical OO syntax.
This is...
Why is 'this' a pointer and not a reference?
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edited Mar 14 '09 at 16:36
answered Mar 14 '09 at 14:41
D...
Is there a ternary conditional operator in T-SQL?
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answered Apr 25 '13 at 8:22
GuffaGuffa
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textarea - disable resize on x or y?
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Grim...Grim...
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SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?
...Categories
(
Code CHAR(4) NOT NULL PRIMARY KEY,
CategoryName VARCHAR(63) NOT NULL UNIQUE
);
CREATE TABLE Courses
(
CourseID INT NOT NULL PRIMARY KEY,
BookID INT NOT NULL,
CatCode CHAR(4) NOT NULL,
CourseNum CHAR(3) NOT NULL,
CourseSec CHAR(1) NOT NULL,
);
ALTER TABLE Courses
ADD FO...
When to use std::forward to forward arguments?
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3 Answers
3
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How to sort an array in descending order in Ruby
... user system total real
sort 3.960000 0.010000 3.970000 ( 3.990886)
sort reverse 4.040000 0.000000 4.040000 ( 4.038849)
sort_by -a[:bar] 0.690000 0.000000 0.690000 ( 0.692080)
sort_by a[:bar]*-1 0.700000 0.000000 0.700...
Re-raise exception with a different type and message, preserving existing information
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Python 3 introduced exception chaining (as described in PEP 3134). This allows, when raising an exception, to cite an existing exception as the “cause”:
try:
frobnicate()
except KeyError as exc:
raise ValueError("Bad gra...
How to build query string with Javascript
...apped array.
– Jake Wilson
Jan 28 '13 at 22:19
2
@JakeWilson Yeah, this answer only half answers ...