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Changing navigation bar color in Swift
...far off with what I was trying but I didn't quite have things in the right order.
– user3746428
Jul 10 '14 at 22:59
I'...
Why does Java's hashCode() in String use 31 as a multiplier?
...cation to be key.hashCode() ^ value.hashCode() despite it is not even an unordered pair, as key and value have entirely different meaning. Yes, that implies that Map.of(42, 42).hashCode() or Map.of("foo", "foo", "bar", "bar").hashCode(), etc, are predictably zero. So don’t use maps as keys for oth...
What are Scala context and view bounds?
... view bounds in the standard library (before Scala 2.8.0, anyway), is with Ordered, like this:
def f[A <% Ordered[A]](a: A, b: A) = if (a < b) a else b
Because one can convert A into an Ordered[A], and because Ordered[A] defines the method <(other: A): Boolean, I can use the expression a...
What is the simplest SQL Query to find the second largest value?
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Much better than my approach using ORDER_BY and LIMIT for the inner statement
– andig
Oct 8 '15 at 9:58
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Only read selected columns
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do { … } while (0) — what is it good for? [duplicate]
..., you don't get to choose how other people are going to use your macro. In order to avoid unexpected surprises inflicted upon your users, you have to use a technique like the above to make your macro behave as any other C statement would behave.
– Greg Hewgill
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Meaning of “[: too many arguments” error from if [] (square brackets)
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Unique random string generation
...ose from the entire allowedCharSet, ignore
// the value in order to avoid biasing the result.
var outOfRangeStart = byteSize - (byteSize % allowedCharSet.Length);
if (outOfRangeStart <= buf[i]) continue;
result.Append(allowedCharSet[...
How to check whether an object is a date?
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In order to check if the value is a valid type of the standard JS-date object, you can make use of this predicate:
function isValidDate(date) {
return date && Object.prototype.toString.call(date) === "[object Date]" &...
How to find the php.ini file used by the command line?
...t my answer...in my case I type sudo find / -iname php.ini and it founds /etc/php/7.0/apache2/php.ini the right place of the right php.ini config file of my machine that it wasn't found by php --ini or php -i | grep php.ini (both found /etc/php/7.0/cli/php.ini)
– NineCattoRule...