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Most efficient way to determine if a Lua table is empty (contains no entries)?
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Your code is efficient but wrong. (Consider {[false]=0}.) The correct code is
if next(myTable) == nil then
-- myTable is empty
end
For maximum efficiency you'll want to bind next to a local variable, e.g.,
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local next = next
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... if next(....
“The underlying connection was closed: An unexpected error occurred on a send.” With SSL Certificate
Issue : I get this exception "THE UNDERLYING CONNECTION WAS CLOSED: AN UNEXPECTED ERROR OCCURRED ON A SEND" in my logs and it is breaking our OEM integration with our email marketing system at random times varying from [1hour - 4 hours]
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jQuery Get Selected Option From Dropdown
...alue of the selected option, but this time it doesn't work.
The selected tag has the id aioConceptName
31 Answers
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How to wrap text in LaTeX tables?
I am creating a report in LaTeX which involves a few tables. I'm stuck on that as my cell data in the table is exceeding the width of the page. Can I somehow wrap the text so that it falls into the next line in the same cell of the table?
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WHERE vs HAVING
Why do you need to place columns you create yourself (for example select 1 as "number" ) after HAVING and not WHERE in MySQL?
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Introducing FOREIGN KEY constraint may cause cycles or multiple cascade paths - why?
I've been wrestling with this for a while and can't quite figure out what's happening. I have a Card entity which contains Sides (usually 2) - and both Cards and Sides have a Stage. I'm using EF Codefirst migrations and the migrations are failing with this error:
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Programmatically align a toolbar on top of the iPhone keyboard
In several cases I want to add a toolbar to the top of the iPhone keyboard (as in iPhone Safari when you're navigating form elements, for example).
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Max return value if empty query
I have this query:
11 Answers
11
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How to copy a file to multiple directories using the gnu cp command
Is it possible to copy a single file to multiple directories using the cp command ?
22 Answers
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Getting values from query string in an url using AngularJS $location
Regarding $location.search, the docs say,
9 Answers
9
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