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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table
I'm having a little trouble understanding the pass-by-reference properties of data.table . Some operations seem to 'break' the reference, and I'd like to understand exactly what's happening.
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How do you specify a different port number in SQL Management Studio?
... to connect to a Microsoft SQL 2005 server which is not on port 1433. How do I indicate a different port number when connecting to the server using SQL Management Studio?
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Pass request headers in a jQuery AJAX GET call
I am trying to pass request headers in an AJAX GET using jQuery. In the following block, "data" automatically passes the values in the querystring. Is there a way to pass that data in the request header instead ?
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Unique constraint on multiple columns
How do I add a unique constraint for columns fcode, scode, dcode with t-sql and/or management studio ? fcode, scode, dcode must be unique together.
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Android - Start service on boot
From everything I've seen on Stack Exchange and elsewhere, I have everything set up correctly to start an IntentService when Android OS boots. Unfortunately it is not starting on boot, and I'm not getting any errors. Maybe the experts can help...
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Convert a string to regular expression ruby
I need to convert string like "/[\w\s]+/" to regular expression.
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How to concatenate properties from multiple JavaScript objects
I am looking for the best way to "add" multiple JavaScript objects (associative arrays).
14 Answers
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java: (String[])List.toArray() gives ClassCastException
The following code (run in android) always gives me a ClassCastException in the 3rd line:
4 Answers
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What is meant by Ems? (Android TextView)
What is meant by Ems (related to a TextView)? For example in
6 Answers
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How to write multiple line string using Bash with variables?
How can I write multi-lines in a file called myconfig.conf using BASH?
6 Answers
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