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How do I force Postgres to use a particular index?
...The reasons are basically that it's a performance hack that tends to cause more problems later down the line as your data changes, whereas PostgreSQL's optimizer can re-evaluate the plan based on the statistics. In other words, what might be a good query plan today probably won't be a good query pla...
How do I enable gzip compression when using MVC3 on IIS7?
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Be aware that this can mess up your "Vary:" host header. More info: stackoverflow.com/questions/5372052/…
– jjxtra
Dec 17 '13 at 23:33
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How to send JSON instead of a query string with $.ajax?
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What is the difference between JSON and Object Literal Notation?
...e), but once you or a library you're using has parsed it, it's not JSON anymore.
Only because object literals and JSON look similar, it does not mean that you can name them interchangeably. See also There's no such thing as a "JSON Object".
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How do I create a custom iOS view class and instantiate multiple copies of it (in IB)?
...IBAction methods in the MyCustomTimer class are something you would expect more in a view controller than in a view.
As a side note, some may argue that this breaks MVC and I agree somewhat. From my point of view it's more closely related to a custom UITableViewCell, which also sometimes has to be ...
How to read data From *.CSV file using javascript?
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Create singleton using GCD's dispatch_once in Objective-C
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How to add to an existing hash in Ruby
...creates an empty array, { } will create a empty hash.
Arrays have zero or more elements in a specific order, where elements may be duplicated. Hashes have zero or more elements organized by key, where keys may not be duplicated but the values stored in those positions can be.
Hashes in Ruby are ve...
difference between use and require
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not having to reconcile collisions is a good point, and more generally there's a programming style which says "namespaces are a honking great idea, we should have more of them" (from "The Zen of Python") -- so e.g. that style recommends not using "using namespace foo;" in C++, so ...