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How to do associative array/hashing in JavaScript
I need to store some statistics using JavaScript in a way like I'd do it in C#:
11 Answers
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Listening for variable changes in JavaScript
Is it possible to have an event in JS that fires when the value of a certain variable changes? JQuery is accepted.
21 Answe...
What is the purpose of AsQueryable()?
... useful reason to represent IEnumerable as IQueryable ? For example, is it supposed to be for cases like this:
5 Answers...
Bootstrap dropdown sub menu missing
Bootstrap 3 is still at RC, but I was just trying to implement it. I couldn't figure out how to put a sub menu class. Even there is no class in css and even the new docs don't say anything about it
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Purge or recreate a Ruby on Rails database
...to do this:
This will reset your database and reload your current schema with all:
rake db:reset db:migrate
This will destroy your db and then create it and then migrate your current schema:
rake db:drop db:create db:migrate
All data will be lost in both scenarios.
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How do you round UP a number in Python?
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edited Feb 26 '18 at 9:17
answered Mar 1 '10 at 14:40
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Key existence check in HashMap
... // Okay, there's a key but the value is null
} else {
// Definitely no such key
}
}
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What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?
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For your needs, use ConcurrentHashMap. It allows concurrent modification of the Map from several threads without the need to block them. Collections.synchronizedMap(map) creates a blocking Map which will degrade performance, albeit ensure consistency (if used prop...
On - window.location.hash - Change?
...by setting an interval that keeps checking the current hash, and comparing it against what it was before, we do this and let subscribers subscribe to a changed event that we fire if the hash changes.. its not perfect but browsers really don't support this event natively.
Update to keep this answe...
Exclude .svn directories from grep [duplicate]
...irectory, the results include a lot of files from the .svn directories. Is it possible to recursively grep a directory, but exclude all results from .svn directories?
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