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sed: print only matching group
...the last two numbers (one int, one float; followed by optional whitespace) and print only them.
5 Answers
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Haskell error parse error on input `='
I'm new to Haskell and after starting ghci I tried:
4 Answers
4
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Query for array elements inside JSON type
...th the function json_array_elements() in a lateral join in the FROM clause and test for its elements:
WITH reports(data) AS (
VALUES ('{"objects":[{"src":"foo.png"}, {"src":"bar.png"}]
, "background":"background.png"}'::json)
)
SELECT *
FROM reports r, json_array_elements(r.data#...
Is it possible to adjust x,y position for titleLabel of UIButton?
...ignment:UIControlContentVerticalAlignmentTop];
//move text 10 pixels down and right
[button setTitleEdgeInsets:UIEdgeInsetsMake(10.0f, 10.0f, 0.0f, 0.0f)];
And in Swift
//make the buttons content appear in the top-left
button.contentHorizontalAlignment = .Left
button.contentVerticalAlignment = ....
Capturing Ctrl-c in ruby
...t. When a control-C comes in, it raises Interrupt. Since both SystemExit and Interrupt derive from Exception, your exception handling is stopping the exit or interrupt in its tracks. Here's the fix:
Wherever you can, change
rescue Exception => e
# ...
end
to
rescue StandardError => ...
Check if class already assigned before adding
...
Please re-read my question and you will notice that its not about beeing safe but about best practice
– Muleskinner
Sep 13 '11 at 14:33
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How do I check for a network connection?
... This doesn't always work in WPF. Some laptops return false and some return true
– krilovich
Feb 10 '16 at 17:21
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How does Junit @Rule work?
...n a more generic way.
For instance, ExternalResource executes code before and after a test method, without having to use @Before and @After. Using an ExternalResource rather than @Before and @After gives opportunities for better code reuse; the same rule can be used from two different test classes....
How to delete a folder and all contents using a bat file in windows?
I want to delete a folder with all files and subfolders using a bat file.
3 Answers
3...
Need to reset git branch to origin version
...n (github). Is there an easy way to do this? I tried deleting the branch and then resetting up the tracking branch, but it just gives me the version I was working on again.
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