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Setting CSS pseudo-class rules from JavaScript
...0);
document.styleSheets[0].rules[0].style.backgroundColor= 'red';
Older and minor browsers are likely not to support either syntax. Dynamic stylesheet-fiddling is rarely done because it's quite annoying to get right, rarely needed, and historically troublesome.
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ValueError: invalid literal for int() with base 10: ''
I am creating a program that reads a file and if the first line of the file is not blank, it reads the next four lines. Calculations are performed on those lines and then the next line is read. If that line is not empty it continues. However, I am getting this error:
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What is the best way to add options to a select from a JavaScript object with jQuery?
...me inside the loop is very wasteful, as is updating the DOM. See points #3 and #6 at artzstudio.com/2009/04/jquery-performance-rules/…
– Patrick
Oct 12 '14 at 7:03
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How do I 'svn add' all unversioned files to SVN?
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also you could probably dig up sed and grep on windows if you really wanted.
– Sam Saffron
Jul 2 '09 at 5:13
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Maven plugins can not be found in IntelliJ
...ment -> Build Tools -> Maven (IntelliJ Ultimate 2020.2 on Ubuntu)... and then I needed to invalidate caches and restart (File -> Invalid Caches / Restart). Problem solved, thank you!
– Lambart
Aug 20 at 21:25
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AddRange to a Collection
...int about the get-only property, which prevents solutions like doing Union and reassigning.)
8 Answers
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In Python, using argparse, allow only positive integers
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type would be the recommended option to handle conditions/checks, as in Yuushi's answer.
In your specific case, you can also use the choices parameter if your upper limit is also known:
parser.add_argument('foo', type=int, choices=xrange(5, 10))
Note: Use range ...
display: inline-block extra margin [duplicate]
I'm working with a few div s that are set to display: inline-block and have a set height and width . In the HTML, if there is a line break after each div there is an automatic 5px margin add to the right and bottom of the div.
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parsing JSONP $http.jsonp() response in angular.js
...uccess/error were deprecated.
The $http legacy promise methods success and error have been deprecated and will be removed in v1.6.0. Use the standard then method instead. If $httpProvider.useLegacyPromiseExtensions is set to false then these methods will throw $http/legacy error.
USE:
var url...
CardView layout_width=“match_parent” does not match parent RecyclerView width
...L. Returns The root View of
the inflated hierarchy. If root was supplied and attachToRoot is true,
this is root; otherwise it is the root of the inflated XML file.
It is important here to not supply true, but do supply the parent:
LayoutInflater.from(parent.getContext())
.inflate(...