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Best ways to teach a beginner to program? [closed]

...mers, and more logic) Depending on their age some really like an app which calls the users a random insult at some interval. (Loops, arrays, timers, and random if you make the interval random) 2) Simple Project Once they have a good grasp of language features, you can start a project(simple, fun g...
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Why does CSS not support negative padding?

... Eh, it's a reason, but I wouldn't call it a satisfactory one. This is a case where the spec goes beyond telling me how to define my page and starts telling me how I should define my page. If I want my content to overlap my background edges, borders and/or m...
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How do I handle too long index names in a Ruby on Rails ActiveRecord migration?

... Provide the :name option to add_index, e.g.: add_index :studies, ["user_id", "university_id", "subject_name_id", "subject_type_id"], :unique => true, :name => 'my_index' If using the :index option on references in...
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How to create standard Borderless buttons (like in the design guideline mentioned)?

I was just checking the design guidelines and wondering about the borderless buttons. I goggled and tried to find in the source but can't bring it together by myself. Is this the normal Button widget but you add a custom (Android default) style? How to make these borderless buttons (of course you ca...
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Force unmount of NFS-mounted directory [closed]

... Interesting. At my side (after NFS-Server vanished): umount calls umount.nfs, hangs forever (regardless of option). umount.nfs4 /mnt -f takes quite long, but completes. umount.nfs4 /mnt -l completes immediately (perhaps because it does not wait for processes). –...
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Pandas dataframe get first row of each group

... >>> df.groupby('id').first() value id 1 first 2 first 3 first 4 second 5 first 6 first 7 fourth If you need id as column: >>> df.groupby('id').first().reset_index() id value 0 1 first 1 ...
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Adding parameter to ng-click function inside ng-repeat doesn't seem to work

... Instead of <button ng-click="removeTask({{task.id}})">remove</button> do this: <button ng-click="removeTask(task.id)">remove</button> Please see this fiddle: http://jsfiddle.net/JSWorld/Hp4W7/34/ ...
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Alternate output format for psql

...on Ubuntu. I have a table with columns c1 through cN . The columns are wide enough that selecting all columns causes a row of query results to wrap multiple times. Consequently, the output is hard to read. ...
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Get real path from URI, Android KitKat new storage access framework [duplicate]

Before the new gallery access in Android 4.4 (KitKat) I got my real path on the SD card with this method: 9 Answers ...
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How to get form field's id in Django?

Is there any way to get the id of a field in a template? 4 Answers 4 ...