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What is the difference between Class and Klass in ruby?
...ecting ')'
def show_methods(class)
^
test.rb:2: syntax error, unexpected ')'
puts Object.const_get(class).methods.inspect
To fix it, we'll use the identifier klass instead. It's not special, but it's conventionally used as a variable name when you're dealing wit...
How to implement a many-to-many relationship in PostgreSQL?
...s using serial primary key columns
Auto increment table column
https://www.2ndquadrant.com/en/blog/postgresql-10-identity-columns/
I highly recommend that, because the name of a product is hardly unique (not a good "natural key"). Also, enforcing uniqueness and referencing the column in foreign key...
Kiosk mode in Android
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You can autostart applications on boot by listening to the android.intent.action.BOOT_COMPLETED...
Calling a Fragment method from a parent Activity
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Unexpected character encountered while parsing value
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edited Nov 13 '18 at 23:43
MrBoJangles
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Using Linq to group a list of objects into a new grouped list of list of objects
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answered Apr 23 '10 at 8:50
LeeLee
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Alter table add multiple columns ms sql
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edited Jun 21 '11 at 13:45
James
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How can I change the copyright template in Xcode 4?
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209
Xcode 4 (and above) stores this on a per-project basis.
If you select the project in the Pro...
What is the difference between origin and upstream on GitHub?
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edited Jun 3 '19 at 23:15
answered Feb 13 '12 at 9:10
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iPhone - Grand Central Dispatch main thread
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296
Dispatching a block to the main queue is usually done from a background queue to signal that s...