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Best practices/performance: mixing StringBuilder.append with String.concat
I'm trying to understand what the best practice is and why for concatenating string literals and variables for different cases. For instance, if I have code like this
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Bash: Strip trailing linebreak from output
When I execute commands in Bash (or to be specific, wc -l < log.txt ), the output contains a linebreak after it. How do I get rid of it?
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SQL Server: Filter output of sp_who2
Under SQL Server, is there an easy way to filter the output of sp_who2? Say I wanted to just show rows for a certain database, for example.
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Find region from within an EC2 instance
Is there a way to look up the region of an instance from within the instance?
28 Answers
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Query EC2 tags from within instance
Amazon recently added the wonderful feature of tagging EC2 instances with key-value pairs to make management of large numbers of VMs a bit easier.
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Seeding the random number generator in Javascript
Is it possible to seed the random number generator (Math.random) in Javascript?
13 Answers
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How does Java handle integer underflows and overflows and how would you check for it?
How does Java handle integer underflows and overflows?
12 Answers
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Structs versus classes
I'm about to create 100,000 objects in code. They are small ones, only with 2 or 3 properties. I'll put them in a generic list and when they are, I'll loop them and check value a and maybe update value b .
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How to remove trailing whitespace of all files recursively?
How can you remove all of the trailing whitespace of an entire project? Starting at a root directory, and removing the trailing whitespace from all files in all folders.
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Enforcing the type of the indexed members of a Typescript object?
I would like to store a mapping of string -> string in a Typescript object, and enforce that all of the keys map to strings. For example:
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