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Is there any performance reason to declare method parameters final in Java?
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Get the position of a div/span tag
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Take a screenshot of a webpage with JavaScript?
...e worth a try. It's a drop in solution to get accurate browser screenshots from your visitors without installing a plugin (and no Java, ActiveX or Flash whatsoever).
– Gregor
Jun 19 '13 at 15:37
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What are the best Haskell libraries to operationalize a program? [closed]
...not aware of any standardized reporting tools, however, extracting reports from +RTS -s streams (or via profiling output flags) has been something I've done in the past.
$ ./A +RTS -s
64,952 bytes allocated in the heap
1 MB total memory in use
%GC time 0.0% (6.1% elapsed)
Productivity 100...
How can I get the ID of an element using jQuery?
...for DOM selector in jquery is
$('#test').prop('id')
which is different from .attr() and $('#test').prop('foo') grabs the specified DOM foo property, while $('#test').attr('foo') grabs the specified HTML foo attribute and you can find more details about differences here.
...
test a file upload using rspec - rails
...ybara?
It's easy to test file uploads using capybara's attach_file method from a request spec.
For example (this code is a demo only):
it "can upload a license" do
visit upload_license_path
attach_file "uploadLicense", /path/to/file/to/upload
click_button "Upload License"
end
it "can downl...
Get user profile picture by Id
...
From the Graph API documentation.
/OBJECT_ID/picture returns a redirect to the object's picture (in this case the users)
/OBJECT_ID/?fields=picture returns the picture's URL
Examples:
<img src="https://graph.facebook.com...
‘ld: warning: directory not found for option’
... targets for both the project and the testing module (upon project upgrade from iOS8.3 to iOS9).
– ObjectiveTC
Jul 3 '15 at 1:07
1
...
Standard deviation of a list
...
pure python code:
from math import sqrt
def stddev(lst):
mean = float(sum(lst)) / len(lst)
return sq
File system that uses tags rather than folders?
.... It's a fuse based user space file system. It can show tagged directories from a source directory in a tag filter view.
E.g. let's say you have a directory 'vacation india' which is tagged 'india' and 'photos' and a directory 'vacation spain' tagged 'spain' and 'photos'. You can filter all your ph...