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Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
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Yes, there is a difference. These are legal:
h = { :$in => array }
h = { :'a.b' => 'c' }
h[:s] = 42
but these are not:
h = { $in: array }
h = { 'a.b': 'c' } # but this is okay in Ruby2.2+
h[s:] = 42
You can also use anything as a key with => so you can do this:
h...
Set markers for individual points on a line in Matplotlib
I have used Matplotlib to plot lines on a figure. Now I would now like to set the style, specifically the marker, for individual points on the line. How do I do this?
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What is a “Stub”?
So, carrying on with my new years resolution to get more in to TDD, I am now starting to work more with Rhino Mocks .
6 An...
UIDevice uniqueIdentifier deprecated - What to do now?
... come to light that the UIDevice uniqueIdentifier property is deprecated in iOS 5 and unavailable in iOS 7 and above. No alternative method or property appears to be available or forthcoming.
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Python: fastest way to create a list of n lists
So I was wondering how to best create a list of blank lists:
5 Answers
5
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Android: What's the difference between Activity.runOnUiThread and View.post?
...ween Activity.runOnUiThread and View.post , could someone, please, explain?
4 Answers
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git update-index --assume-unchanged on directory
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git update-index wants the file names on its command line, not on its standard input.
Step 1:
cd into the folder you want to assume is unchanged
Step 2:
You can do either this:
git update-index --assume-unchanged $(git ls-files | ...
Prevent users from submitting a form by hitting Enter
... survey on a website, and there seems to be some issues with the users hitting enter (I don't know why) and accidentally submitting the survey (form) without clicking the submit button. Is there a way to prevent this?
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PHP - Merging two arrays into one array (also Remove Duplicates)
Hi I'm Trying to merge two arrays and also want to remove duplicate values from final Array.
5 Answers
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how to provide a swap function for my class?
What is the proper way to enable my swap in STL algorithms?
3 Answers
3
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