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Kotlin secondary constructor
...
Instead of extending first constructor directly from the second one can delegate to another secondary constructor, that already does it:
– Picrochole
Jun 6 '17 at 6:20
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How do you access the matched groups in a JavaScript regular expression?
...e easily transformed into an Array by using the spread syntax or the Array.from method:
function getFirstGroup(regexp, str) {
const array = [...str.matchAll(regexp)];
return array.map(m => m[1]);
}
// or:
function getFirstGroup(regexp, str) {
return Array.from(str.matchAll(regexp), m =>...
Cleanest way to write retry logic?
...erform retry logic:
Retry.Do(() => SomeFunctionThatCanFail(), TimeSpan.FromSeconds(1));
or:
Retry.Do(SomeFunctionThatCanFail, TimeSpan.FromSeconds(1));
or:
int result = Retry.Do(SomeFunctionWhichReturnsInt, TimeSpan.FromSeconds(1), 4);
Or you could even make an async overload.
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Is there a Java reflection utility to do a deep comparison of two objects?
...ng is there any sample code to direct us to? Where did you pull that quote from?
– anon58192932
Jul 11 '17 at 22:25
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CSS background image alt attribute
...an an equivalent list of text blurbs. Any use of image sprites can benefit from this approach.
It is quite common for hotel listings icons to display amenities. Imagine a page which listed 50 hotel and each hotel had 10 amenities. A CSS Sprite would be perfect for this sort of thing -- better user...
Text size and different android screen sizes
...ablet (720x1280 mdpi, 800x1280 mdpi, etc).
Using the size qualifiers from table 2, your application can switch
between your different layout resources for handsets and tablets using
any number you want for width and/or height. For example, if 600dp is
the smallest available width support...
How does this code generate the map of India?
...end of line. The number of characters drawn is a - 64. The value of c goes from 10 to 90, and resets to 10 when the end of line is reached.
The putchar
This can be rewritten as:
++c;
if (c==90) { //'Z' == 90
c = 10; //Note: 10 == '\n'
putchar('\n');
}
else {
if (b % 2 == ...
Convert UTC Epoch to local date
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thought maybe others could get some clarity from a couple points: the date object does not get set with a timezone "stamped in it". think of it as nothing but a number. that number is the number of milliseconds since 1970 jan 1 UTC, to now (now being in UTC also). So,...
Enter triggers button click
...n this situation. If you specifically set type="button", then it's removed from consideration by the browser.
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Difference between angle bracket < > and double quotes “ ” while including header files in C++? [dup
...ectory over system headers. <> usually is used for system headers. From to the specification (Section 6.10.2):
A preprocessing directive of the form
# include <h-char-sequence> new-line
searches a sequence of implementation-defined places for a header identified uniquely b...