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How to perform case-insensitive sorting in JavaScript?
...
In (almost :) a one-liner
["Foo", "bar"].sort(function (a, b) {
return a.toLowerCase().localeCompare(b.toLowerCase());
});
Which results in
[ 'bar', 'Foo' ]
While
["Foo", "bar"].sort();
results in
[ 'Foo', 'bar' ]
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C# 4.0 optional out/ref arguments
...pe Result { get; set; }
}
Then you can use it as follows:
public string foo(string value, OptionalOut<int> outResult = null)
{
// .. do something
if (outResult != null) {
outResult.Result = 100;
}
return value;
}
public void bar ()
{
string str = "bar";
s...
Bulk insert with SQLAlchemy ORM
...ry keys), and bulk inserts interfere with that. For example, assuming your foo table contains an id column and is mapped to a Foo class:
x = Foo(bar=1)
print x.id
# None
session.add(x)
session.flush()
# BEGIN
# INSERT INTO foo (bar) VALUES(1)
# COMMIT
print x.id
# 1
Since SQLAlchemy picked up the...
When is -XAllowAmbiguousTypes appropriate?
...he other:
{-# LANGUAGE FlexibleInstances, OverlappingInstances #-}
class Foo a where
whichOne :: a -> String
instance Foo a where
whichOne _ = "a"
instance Foo [a] where
whichOne _ = "[a]"
-- |
-- >>> main
-- [a]
main :: IO ()
main = putStrLn $ whichOne (undefined :: [Int])
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How to parse JSON in Java
I have the following JSON text. How can I parse it to get the values of pageName , pagePic , post_id , etc.?
34 Answers
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Is there a “goto” statement in bash?
...bitrary loops, most require that to be expressed statically -- e.g., break foo; will break out of the loop labeled foo -- whereas in Bash it's expressed dynamically -- e.g., break "$foo" will break out of $foo loops.)
– ruakh
Apr 28 '14 at 16:37
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how to change default python version?
I have installed python 3.2 in my mac. After I run /Applications/Python 3.2/Update Shell Profile.command , it's confusing that when I type python -V in Terminal it says that Python 2.6.1 , how can I change the default python version?
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Assigning default values to shell variables with a single command in bash
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Very close to what you posted, actually:
FOO=${VARIABLE:-default} # If variable not set or null, use default.
Or, which will assign default to VARIABLE as well:
FOO=${VARIABLE:=default} # If variable not set or null, set it to default.
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What is the proper way to check for existence of variable in an EJS template (using ExpressJS)?
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The same way you would do it with anything in js, typeof foo == 'undefined', or since "locals" is the name of the object containing them, you can do if (locals.foo). It's just raw js :p
share
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How to define @Value as optional
I have the following in a Spring bean:
3 Answers
3
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