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In Firebase, is there a way to get the number of children of a node without loading all the node dat
You can get the child count via
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What does “abstract over” mean?
Often in the Scala literature, I encounter the phrase "abstract over", but I don't understand the intent. For example , Martin Odersky writes
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Why does pthread_cond_wait have spurious wakeups?
To quote the man page:
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Inheriting class methods from modules / mixins in Ruby
It is known that in Ruby, class methods get inherited:
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Call Go functions from C
...tatic object written in Go to interface with a C program (say, a kernel module or something).
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Using a ListAdapter to fill a LinearLayout inside a ScrollView layout
I'm facing a very common problem:
I layed out an activity and now it turns out it should display a few items within this ScrollView . The normal way to do that would be to use the existing ListAdapter , connect it to a ListView and BOOM I'd have my list of items.
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How do I flush the PRINT buffer in TSQL?
I have a very long-running stored procedure in SQL Server 2005 that I'm trying to debug, and I'm using the 'print' command to do it. The problem is, I'm only getting the messages back from SQL Server at the very end of my sproc - I'd like to be able to flush the message buffer and see these messages...
Does PostgreSQL support “accent insensitive” collations?
... to specify an "accent insensitive" collation (for a database, table or column), which means that it's possible for a query like
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CSS media queries: max-width OR max-height
When writing a CSS media query, is there any way you can specify multiple conditions with "OR" logic?
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Is gcc 4.8 or earlier buggy about regular expressions?
I am trying to use std::regex in a C++11 piece of code, but it appears that the support is a bit buggy. An example:
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