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What's the difference between belongs_to and has_one?

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How to verify a user's password in Devise

... | edited Jul 25 '11 at 21:39 Arnaud Leymet 5,06344 gold badges2626 silver badges4646 bronze badges ...
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How do you do natural logs (e.g. “ln()”) with numpy in Python?

... 156 np.log is ln, whereas np.log10 is your standard base 10 log. Relevant documentation: http://d...
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What's the difference between eval, exec, and compile?

... 542 The short answer, or TL;DR Basically, eval is used to evaluate a single dynamically generated...
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What does the exclamation mark mean in a Haskell declaration?

...data Foo = Foo Int Int !Int !(Maybe Int) f = Foo (2+2) (3+3) (4+4) (Just (5+5)) The function f above, when evaluated, will return a "thunk": that is, the code to execute to figure out its value. At that point, a Foo doesn't even exist yet, just the code. But at some point someone may try to look...
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How to center the content inside a linear layout?

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How to create a temporary directory and get the path / file name in Python

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Difference between . and : in Lua

... Yu Hao 108k2323 gold badges198198 silver badges253253 bronze badges answered Feb 6 '11 at 2:55 BMitchBMitch 121k2020 gold badg...
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How do I import .sql files into SQLite 3?

...ou need ; on the end of your statements: create table server(name varchar(50),ipaddress varchar(15),id init); create table client(name varchar(50),ipaddress varchar(15),id init); share | improve t...
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What is the difference between README and README.md in GitHub projects?

... 385 .md is markdown. README.md is used to generate the html summary you see at the bottom of projec...