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Understanding generators in Python

...u do not look into until you understand the basic concept of a generator. Now you may ask: why use generators? There are a couple of good reasons: Certain concepts can be described much more succinctly using generators. Instead of creating a function which returns a list of values, one can write ...
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FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)

... But now it is deprecated in api 27 -> to use the v4 version again. Then we have the problem again, with not way to use the none support lib Fragment – Morten Holmgaard Apr 5 '18 at 8:32 ...
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Determine whether an array contains a value [duplicate]

...he answer. But good stuff - I've used indexOf() for strings, but I didn't know you could use it for arrays in general. – doubleDown Feb 4 '16 at 12:02 ...
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Rails I18n validation deprecation warning

...les = true # ... end end Long answer The deprecation warning is now displayed both in Rails 4 (>= 4.0.2) and Rails 3.2 (>= 3.2.14). The reason is explained in this commit. Enforce available locales When I18n.config.enforce_available_locales is true we'll raise an I18n::In...
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.gitignore all the .DS_Store files in every folder and subfolder

...gnore file somewhere, e.g. echo .DS_Store >> ~/.gitignore_global Now tell git to use it for all repositories: git config --global core.excludesfile ~/.gitignore_global This page helped me answer your question. ...
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Best way to serialize an NSData into a hexadeximal string

..., and >'s. Stripping characters just feels too "hacky". Plus you never know if Apple will change the formatting of NSData's -description in the future. NOTE: I have had people reach out to me about licensing for the code in this answer. I hereby dedicate my copyright in the code I posted in this...
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Why can't I see the “Report Data” window when creating reports?

...the toolbox, and add controls to the report, but the "Report Data" pane is nowhere to be found, so I can't fill the controls on my report. However, if I run the solution, the "Report Data" pane appears, and I can drag fields on to my report, however the Toolbox contains no controls while I'm runnin...
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How to split long commands over multiple lines in PowerShell

... are using Notepad++, it will even highlight correctly as a string block. Now, if you wanted that string to contain double quotes, too, just add them in, like this: $myvar = "Site" $mystring = @" <a href="http://somewhere.com/somelocation"> Bob's $myvar </a> "@ You would get exactly ...
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How to customize the background/border colors of a grouped table view cell?

... UPDATE: In iPhone OS 3.0 and later UITableViewCell now has a backgroundColor property that makes this really easy (especially in combination with the [UIColor colorWithPatternImage:] initializer). But I'll leave the 2.0 version of the answer here for anyone that needs it… ...
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How do I reset a sequence in Oracle?

... Hey @Jon ,I am aware of the undocumented feature, however, I didn't know it is seen in the generated script from DBMS_METADATA_DIFF. Could you let me know how you generated the script, which procedure etc.? I would try to test it too. – Lalit Kumar B May ...