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Can I have onScrollListener for a ScrollView?
I am using a HorizontalScrollView in a layout and I need to identify the user have reached the start and end point of the scroll.
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Get the first N elements of an array?
...he numeric array indices. You need the preserve_keys flag set to trueto avoid this. (4th parameter, available since 5.0.2).
Example:
$output = array_slice($input, 2, 3, true);
Output:
array([3]=>'c', [4]=>'d', [5]=>'e');
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What are '$$' used for in PL/pgSQL
...Dollar-quoting is a PostgreSQL-specific substitute for single quotes to avoid quoting issues inside the function body. You could write your function definition with single-quotes just as well. But then you'd have to escape all single-quotes in the body:
CREATE OR REPLACE FUNCTION check_phone_number...
Does the ternary operator exist in R?
...gt; x
[1] 1 2 1
> x <- ifelse(a==2, 1, 2)
> x
[1] 2 1 2
Just kidding, you can define c-style ?::
`?` <- function(x, y)
eval(
sapply(
strsplit(
deparse(substitute(y)),
":"
),
function(e) parse(text = e)
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What is the difference between origin and upstream on GitHub?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
What is the difference between os.path.basename() and os.path.dirname()?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
JavaScript replace/regex
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@seth, Your answer works, but it does not provide a solution to the code from OP. How do I have to call OP's code?
– Black
Jun 17 '19 at 9:59
add ...
Xcode — what is $(SRCROOT)?
... $(SRCRoot). But there is no /Users/stevew directory on my computer. So did it somehow get locked in to the location on the other computer?
– William Jockusch
Sep 15 '10 at 15:45
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How to get the last element of a slice?
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Thanks a bunch! Even though it does seem silly they didn't add the -1 index Python has...
– Morgan Wilde
Mar 20 '14 at 15:00
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How can I get the diff between all the commits that occurred between two dates with Git?
...r, though thats not listed in its documentation! also, 'git whatchanged' didn't appear in 'git help'! No idea why... thanks again.
– Chris
Jul 22 '09 at 10:34
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