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Sending websocket ping/pong frame from browser
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There is no Javascript API to send ping frames or receive pong frames. This is either supporte...
How do I efficiently iterate over each entry in a Java Map?
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How to select unique records by SQL
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With the distinct keyword with single and multiple column names, you get distinct records:
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How can I tell PyCharm what type a parameter is expected to be?
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edited May 7 '13 at 15:25
Andrey Vlasovskikh
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Drop multiple tables in one shot in mysql
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Example:
Let's say table A has two children B and C. Then we can use the following syntax to ...
JavaScript plus sign in front of function expression
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It forces the parser to treat the part following the + as an expression. This is usually used...
How do I enumerate through a JObject?
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If you look at the documentation for JObject, you will see that it implements IEnumerable<K...
Oracle SQL Developer multiple table views
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SQL Developer can start a new tab every time you select a database object to view; but, you wil...
Is it valid to have a tag inside another tag?
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Yes! w3 encourages you to explicitly wrap sections in elements of sectioning content, instead ...
Can I change the root EBS device of my amazon EC2 instance?
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Yep, it's dead easy:
Stop the instance.
Detach the root EBS volume.
Attach the alternate EBS...