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Declaration/definition of variables locations in ObjectiveC?
Ever since starting to work on iOS apps and objective C I've been really puzzled by the different locations where one could be declaring and defining variables. On one hand we have the traditional C approach, on the other we have the new ObjectiveC directives that add OO on top of that. Could you fo...
Is it possible to have a multi-line comments in R? [duplicate]
...iscarded, so as long as it's not the last line in a function nothing will happen.
"This function takes a value x, and does things and returns things that
take several lines to explain"
doEverythingOften <- function(x) {
# Non! Comment it out! We'll just do it once for now.
"if (x %in%...
Detect if Visual C++ Redistributable for Visual Studio 2012 is installed
...new registry convention being used for Visual C++ 2019. There also doesn't appear to be a standalone installer for Visual C++ 2019, only this bundle installer that is Visual C++ 2015 through 2019.
14.21.27702
Microsoft Visual C++ 2015-2019 Redistributable (x64) - 14.21.27702
Registry Key: [HKEY_CL...
How do I create a comma-separated list from an array in PHP?
I know how to loop through items of an array using foreach and append a comma, but it's always a pain having to take off the final comma. Is there an easy PHP way of doing it?
...
PostgreSQL: Drop PostgreSQL database through command line [closed]
... Not helpful answer as for version 9. The error about opened connections appears still.
– Pavel Vlasov
Apr 17 '14 at 9:25
4
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Android Use Done button on Keyboard to click button
Ok in my app I have a field for the user to input a number. I have the field set to only accept numbers. When the user clicks on the field it brings up the keyboard. On the keyboard (on ICS) there is a done button. I would like for the done button on the keyboard to trigger the submit button i have ...
Rails 4 LIKE query - ActiveRecord adds quotes
...ouse9 instances of % and _ inside search will not be sanitized, under this approach.
– Barry Kelly
Oct 30 '14 at 0:26
8
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Losing scope when using ng-include
...ll be lost and I will have a constant 0.00 value on the view div while the app is running.
– zahra
Mar 31 '16 at 4:53
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show 4 more comments...
How to style readonly attribute with CSS?
...ank or "readonly" (the only valid values). http://www.whatwg.org/specs/web-apps/current-work/#boolean-attribute
If you are using something like jQuery's .prop('readonly', true) function, you'll end up needing [readonly], whereas if you are using .attr("readonly", "readonly") then you'll need [reado...
Checking if a string is empty or null in Java [duplicate]
...ementation 'org.apache.commons:commons-text:1.7' } in build.gradle (Module app). If there is already a dependencies block then just insert a new line with this dependency. This is the latest recommended version, as of Feb '20 (see stackoverflow.com/a/55567755/1541141). Then clean and/or sync your pr...