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What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon
...l evil.
– Harindaka
Sep 11 '13 at 9:47
83
Platitudinous generalizations are even worse. Designing...
Why is Python 3.x's super() magic?
...class Foo(Bar):
def baz(self):
return super(Foo, self).baz() + 42
Spam = Foo
Foo = something_else()
Spam().baz() # liable to blow up
The same applies to using class decorators where the decorator returns a new object, which rebinds the class name:
@class_decorator_returning_new_cla...
Generate random string/characters in JavaScript
...haracters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
var charactersLength = characters.length;
for ( var i = 0; i < length; i++ ) {
result += characters.charAt(Math.floor(Math.random() * charactersLength));
}
return result;
}
console.log(m...
How to implement a many-to-many relationship in PostgreSQL?
...ess and referencing the column in foreign keys is typically cheaper with a 4-byte integer (or even an 8-byte bigint) than with a string stored as text or varchar.
Don't use names of basic data types like date as identifiers. While this is possible, it is bad style and leads to confusing errors and ...
what does the __file__ variable mean/do?
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answered Feb 14 '12 at 3:55
paxdiablopaxdiablo
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valueOf() vs. toString() in Javascript
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hzpz
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answered Mar 21 '10 at 10:48
user187291user187291
49.5k1818...
Grep only the first match and stop
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545
-m 1 means return the first match in any given file. But it will still continue to search in ot...
Difference between rake db:migrate db:reset and db:schema:load
.../databases.rake (for Rails 3.2.x) and https://github.com/rails/rails/blob/v4.0.5/activerecord/lib/active_record/railties/databases.rake (for Rails 4.0.x)
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String.replaceAll single backslashes with double backslashes
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answered Nov 9 '09 at 15:45
BalusCBalusC
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