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Rails Model, View, Controller, and Helper: what goes where?
...ntroller should concern itself with selecting the proper view and delegate more complex stuff to the domain model (Model) or the business layer.
Domain Driven Design has a concept of Services which is a place you stick logic which needs to orchestrate a number of various types of objects which gene...
When is SQLiteOpenHelper onCreate() / onUpgrade() run?
...ment the database version so that onUpgrade() is invoked. This is slightly more complicated as more code is needed.
For development time schema upgrades where data loss is not an issue, you can just use execSQL("DROP TABLE IF EXISTS <tablename>") in to remove your existing tables and call on...
How can I measure the actual memory usage of an application or process?
...mple, Valgrind can give you insights about the amount of memory used, and, more importantly, about possible memory leaks in your program. The heap profiler tool of Valgrind is called 'massif':
Massif is a heap profiler. It performs detailed heap profiling by taking regular snapshots of a program's...
What optimizations can GHC be expected to perform reliably?
...s
Demand analysis, or strictness analysis is less of a transformation and more, like the name suggests, of an information gathering pass. The compiler finds functions that always evaluate their arguments (or at least some of them), and passes those arguments using call-by-value, instead of call-by-...
Understanding Python super() with __init__() methods [duplicate]
...ou actually explain what the code does? I don't want to click to 1 million more places to find the answer to this.
– Charlie Parker
Jun 4 '19 at 23:00
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What is the difference between Amazon SNS and Amazon SQS?
...ably be noted that as of mid 2018 SQS can trigger lambdas and therefore is more akin to a pubsub in that case.
– cyberwombat
Jul 19 '19 at 2:37
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What's the difference between $evalAsync and $timeout in AngularJS?
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How to get StackPanel's children to fill maximum space downward?
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Find number of months between two Dates in Ruby on Rails
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(date2.year * 12 + date2.month) - (date1.year * 12 + date1.month)
more info at http://www.ruby-forum.com/topic/72120
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