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Why are arrays of references illegal?
...y the same way as I'd want to use my array of refs - except that you can't index into the 16 foo references. This is a language wart IMHO.
– greggo
Nov 10 '11 at 23:48
...
What does jquery $ actually return?
...er the wrapped set like an
array or access individual elements
via the indexer ($(sel)[0] for
example). More importantly, you can
also apply jQuery functions against
all the selected elements.
About returning nothing:
Does it always return an array? Does it return null?
You always ...
C++ equivalent of java's instanceof
...ceOfMacros.h
#include <set>
#include <tuple>
#include <typeindex>
#define _EMPTY_BASE_TYPE_DECL() using BaseTypes = std::tuple<>;
#define _BASE_TYPE_DECL(Class, BaseClass) \
using BaseTypes = decltype(std::tuple_cat(std::tuple<BaseClass>(), Class::BaseTypes()));
#de...
Why is a round-trip conversion via a string not safe for a double?
...ng;
int total;
int count;
int scale;
int absscale;
int index;
total = (int)wcslen(src);
remaining = total;
// skip the leading zeros
while (*src == '0') {
remaining--;
src++;
}
if (remaining == 0) {
*value = 0;
goto done;...
Delete first character of a string in Javascript
...dn't make a difference because charAt always returns a string, even if the index exceeds the index of the last character, so there's no type coercion performed, and the algorithm ends up being identical. But I do prefer === over == even when it doesn't make a difference. ;)
– u...
How do I put an 'if clause' in an SQL string?
...bquery should be among the most efficient approaches, assuming there is an index on itemsOrdered.purchaseOrder_ID.
– Gordon Linoff
Dec 21 '12 at 14:27
10
...
Difference between Dictionary and Hashtable [duplicate]
...e more important difference between a HashTable and Dictionary. If you use indexers to get a value out of a HashTable, the HashTable will successfully return null for a non-existent item, whereas the Dictionary will throw an error if you try accessing a item using a indexer which does not exist in t...
What is the difference between RegExp’s exec() function and String’s match() function?
...only when the regex is not global).
Another use with Exec, is getting the index or position, of a match. When you have a variable for your regex, you can use .lastIndex and get the position of the matching. A regex object has .lastIndex, and the regex object is what you do .exec on. Dot match is...
month name to month number and vice versa in python
...alendar.month_abbr[month_number]
Abbr-to-Number
list(calendar.month_abbr).index(month_abbr)
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How to make an Android device vibrate?
...000};
// The '0' here means to repeat indefinitely
// '0' is actually the index at which the pattern keeps repeating from (the start)
// To repeat the pattern from any other point, you could increase the index, e.g. '1'
v.vibrate(pattern, 0);
When you're ready to stop the vibration, just call the...