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What are the use cases for selecting CHAR over VARCHAR in SQL?
...R (or NVARCHAR) when the length varies significantly. CHAR may also be a bit faster because all the rows are of the same length.
It varies by DB implementation, but generally, VARCHAR (or NVARCHAR) uses one or two more bytes of storage (for length or termination) in addition to the actual data. So...
How do I execute code AFTER a form has loaded?
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To me it seems like the shown handler is executed WHILE the form is loading... am i wrong?
– ckonig
Feb 14 '13 at 15:50
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What's the difference between a Future and a Promise?
...ise has finally been called CompletableFuture for inclusion in Java 8, and its javadoc explains:
A Future that may be explicitly completed (setting its value and status), and may be used as a CompletionStage, supporting dependent functions and actions that trigger upon its completion.
An exa...
Throw keyword in function's signature
What is the technical reason why it is considered bad practice to use the C++ throw keyword in a function signature?
7 An...
Why doesn't Java allow overriding of static methods?
Why is it not possible to override static methods?
22 Answers
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Is there a way that I can check if a data attribute exists?
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edited Aug 22 '18 at 12:53
James McCormack
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JavaScript check if variable exists (is defined/initialized)
Which method of checking if a variable has been initialized is better/correct?
(Assuming the variable could hold anything (string, int, object, function, etc.))
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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
If I have some integer n, and I want to know the position of the most significant bit (that is, if the least significant bit is on the right, I want to know the position of the furthest left bit that is a 1), what is the quickest/most efficient method of finding out?
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What are unit tests, integration tests, smoke tests, and regression tests?
What are unit tests, integration tests, smoke tests, and regression tests? What are the differences between them and which tools can I use for each of them?
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chrome undo the action of “prevent this page from creating additional dialogs”
...re-enable alerting for debugging. Of course I can close the tab and reload it but Is there a better way?
7 Answers
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