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Why does Python code use len() function instead of a length method?
...n and must work efficiently for such basic and diverse types as str, list, array.array etc.
However, to promote consistency, when applying len(o) to a user-defined type, Python calls o.__len__() as a fallback. __len__, __abs__ and all the other special methods documented in the Python Data Model ...
jQuery Validate - require at least one field in a group to be filled
...on. However, instead of doing the addClassRules method, I prefer to use an array of rules on each individual form. If you go to this page (jquery.bassistance.de/validate/demo/milk) and click "show script used on this page" you will see an example. I take it one step further: I declare an array calle...
How do you manually execute SQL commands in Ruby On Rails using NuoDB
... with easily accessible .columns and .rows attributes. .execute returns an array of hashes which is usually more troublesome to deal with and probably heavier on memory. I had never used exec_query, thanks for the tip.
– Francio Rodrigues
Dec 17 '17 at 20:57
...
How do I create an immutable Class?
... the constructor
all properties should be getters only
if a collection (or Array) is passed into the constructor, it should be copied to keep the caller from modifying it later
if you're going to return your collection, either return a copy or a read-only version (for example, using ArrayList.ReadOn...
Obfuscated C Code Contest 2006. Please explain sykes2.c
...there's some string arithmetic going on, as well as taking advantage of an array subscript being bidirectional: a[b] is the same as b[a] for character arrays.
7[__TIME__ - (argc/8)%8]
This will select one of the first 8 characters in __TIME__. This is then indexed into [">'txiZ^(~z?"-48] (0-...
How to easily initialize a list of Tuples?
...kens"),
(1, "airplane")
};
If you don't need a List, but just an array, you can do:
var tupleList = new(int, string)[]
{
(1, "cow"),
(5, "chickens"),
(1, "airplane")
};
And if you don't like "Item1" and "Item2", you can do:
var tupleList = new List<(int Ind...
How can I merge properties of two JavaScript objects dynamically?
...
Also, obj2[p].constructor == Array is needed in any case where there is an array of objects.
– The Composer
Dec 15 '15 at 19:27
...
Can git operate in “silent mode”?
...louds)
fetch: silence git-gc if --quiet is given
builtin/fetch.c:
argv_array_pushl(&argv_gc_auto, "gc", "--auto", NULL);
if (verbosity < 0)
argv_array_push(&argv_gc_auto, "--quiet");
run_command_v_opt(argv_gc_auto.argv, RUN_GIT_CMD);
...
What is the difference between mutex and critical section?
...aneously and a function called "critical_section_function" which updates a array... you don't want all 5 threads updating the array at once. So when the program is running critical_section_function(), none of the other threads must run their critical_section_function.
mutex*
Mutex is a way of impl...
How to benchmark efficiency of PHP script
...ort = $appgati->Report('1', '2');
print_r($report);
Sample output array:
Array
(
[Clock time in seconds] => 1.9502429962158
[Time taken in User Mode in seconds] => 0.632039
[Time taken in System Mode in seconds] => 0.024001
[Total time taken in Kernel in seconds] =...