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What exactly is Arel in Rails 3.0?
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What exactly is Arel in Rails 3.0?
It's an object model for an algebra of relational query operators.
I understand that it is a replacement for ActiveRecord
No, it isn't. It's a replacement for hand-crafting SQL queries in strings. It is a common query...
How to change Android Studio's editor font?
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32
Thanks, that worked. Not very intuitive UX, generally you save something after you have edited it, not before! I'll accept once it lets m...
jQuery Tips and Tricks
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edited Mar 23 '11 at 18:51
community wiki
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How can I represent an infinite number in Python?
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In Python, you can do:
test = float("inf")
In Python 3.5, you can do:
import math
test = math.inf
And then:
test > 1
test > 10000
test > x
Will always be true. Unless of course, as pointed out, x is also infinity or "nan" ("not a number").
Additionally (Python 2...
How to keep a Python script output window open?
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23 Answers
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In bash, how does one clear the current input?
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edited May 22 '15 at 21:39
answered Jun 29 '09 at 3:07
Jo...
Code equivalent to the 'let' keyword in chained LINQ extension method calls
...h = animalName.Length, animalName})
.Where(x=>x.nameLength > 3)
.OrderBy(x=>x.nameLength)
.Select(x=>x.animalName);
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Remove elements from collection while iterating
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438
Let me give a few examples with some alternatives to avoid a ConcurrentModificationException.
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How do I parse an ISO 8601-formatted date?
I need to parse RFC 3339 strings like "2008-09-03T20:56:35.450686Z" into Python's datetime type.
27 Answers
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