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Syntax for creating a two-dimensional array
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The fun part is you can have different columns in different rows as well. For example:- int[][] multi = new int[5][]; multi[0] = new int[10]; multi[1] = new int[6]; multi[2] = new int[9] is also perfectly valid
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Running code in main thread from another thread
...unnable to the uiHandler:
uiHandler.post(runnable);
That's all ;-) Have fun with threads, but don't forget to synchronize them.
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How do I replace NA values with zeros in an R dataframe?
...the mutate and summarize _at and _all function variants can be found here: https://rdrr.io/cran/dplyr/man/summarise_all.html
Additionally, I found helpful demonstrations and collections of examples here: https://blog.exploratory.io/dplyr-0-5-is-awesome-heres-why-be095fd4eb8a
Attributions and Apprec...
How to break/exit from a each() function in JQuery? [duplicate]
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123
You can use return false;
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How to read an entire file to a string using C#?
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Not the best function to use, though. As Devendra D. Chavan points out in his answer, StreamReader.ReadToEnd is more efficient.
– Owen Blacker
Jun 3 '14 at 11:48
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Detecting WPF Validation Errors
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Just stumbled over this thread. Very useful little function. Thanks!
– Olav Haugen
Jun 7 '11 at 12:55
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How to create an alias for a command in Vim?
...((getcmdtype() is# ':' && getcmdline() is# 'W')?('w'):('W'))
As a function:
fun! SetupCommandAlias(from, to)
exec 'cnoreabbrev <expr> '.a:from
\ .' ((getcmdtype() is# ":" && getcmdline() is# "'.a:from.'")'
\ .'? ("'.a:to.'") : ("'.a:from.'"))'
endfun
call Set...
Manipulate a url string by adding GET parameters
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$url = 'http://example.com/search?keyword=test&category=1&tags[]=fun&tags[]=great';
$url_parts = parse_url($url);
// If URL doesn't have a query string.
if (isset($url_parts['query'])) { // Avoid 'Undefined index: query'
parse_str($url_parts['query'], $params);
} else {
$param...
Should I use single or double colon notation for pseudo-elements?
... though the rest of the selector may look reasonable in CSS 2.1.
http://www.w3.org/TR/CSS2/syndata.html#rule-sets
You could however use
.foo:after { /*styles*/ }
.foo::after { /*styles*/ }
On the other hand this is more verbose than necessary; for now, you can stick with the one-colon notatio...
Can I underline text in an Android layout?
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In Kotlin extension function can be used. This can only be used from code, not xml.
fun TextView.underline() {
paintFla