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How to get number of entries in a Lua table?
...ind an answer. The Lua # operator only counts entries with integer keys, and so does table.getn :
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What is the shortest function for reading a cookie by name in JavaScript?
What is the shortest, accurate, and cross-browser compatible method for reading a cookie in JavaScript?
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How do you pass custom environment variable on Amazon Elastic Beanstalk (AWS EBS)?
...anyone who uses the .ebextensions/*.config way: nowadays you can add, edit and remove environment variables in the Elastic Beanstalk web interface.
The variables are under Configuration → Software Configuration:
Creating the vars in .ebextensions like in Onema's answer still works.
It can eve...
Does MySQL index foreign key columns automatically?
... I really couldn't answer that. You may want to look up the Maria and Falcon storage engines that are to be released in MySQL 6.0 and see if they support foreign keys on non-indexed columns.
– Grant Limberg
Nov 20 '08 at 6:08
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What is the exact difference between currentTarget property and target property in javascript
Can anyone please tell me the exact difference between currentTarget and target property in Javascript events with example and which property is used in which scenario?
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Build vs new in Rails 3
...rm.client.new is creating a new Client object from the clients collection, and so it can automatically set the firm_id to some_firm.id, whereas the docs are calling Client.new which has no knowledge of any Firm's id at all, so it needs the firm_id passed to it.
The only difference between some_firm...
Force DOM redraw/refresh on Chrome/Mac
...e DOM inspector is often enough to get it to realize the error of its ways and redraw correctly, so it's provably the case that the markup is good. This happens frequently (and predictably) enough in a project I'm working on that I've put code in place to force a redraw in certain circumstances.
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Identifying and removing null characters in UNIX
...nulls
If you are wondering if input redirection in the middle of the command arguments works, it does. Most shells will recognize and deal with I/O redirection (<, >, …) anywhere in the command line, actually.
shar...
How to terminate script execution when debugging in Google Chrome?
...h
Menu → More Tools → Task Manager
You can select your page task and end it by pressing "End Process" button.
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Call by name vs call by value in Scala, clarification needed
As I understand it, in Scala, a function may be called either
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