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Is there a built in function for string natural sort?
...he str/int splits must line up, otherwise you'll create comparisons like ["foo",0] < [0,"foo"] for the input ["foo0","0foo"], which raises a TypeError.
– user19087
Jan 11 '17 at 0:25
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typedef fixed length array
...he compiler did not complain about it. But when I defined a function void foo(type24 val) {} in my C file, it did complain. I would like to be able to define functions like type24_to_int32(type24 val) instead of type24_to_int32(char value[3]) .
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Private and protected constructor in Scala
...e keyword between the class name and the parameter list, like this:
class Foo private () {
/* class body goes here... */
}
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`levels
...eadability reasons, I would say it never makes sense because `levels<-`(foo,bar) is the same as levels(foo) <- bar. Using @Marek's example: `levels<-`(as.factor(foo),bar) is the same as foo <- as.factor(foo); levels(foo) <- bar.
– Joshua Ulrich
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Parsing JSON using Json.net
... public int x { get; set; }
public int y { get; set; }
}
public class Foo
{
public Foo() { objects = new List<SubObject>(); }
public string displayFieldName { get; set; }
public NameTypePair fieldAliases { get; set; }
public PositionType positionType { get; set; }
publ...
“simple” vs “current” push.default in git for decentralized workflow
...n if a branch with the same name exists on the remote):
$ git checkout -b foo
Switched to a new branch 'foo'
$ git config push.default simple
$ git push
fatal: The current branch foo has no upstream branch.
To push the current branch and set the remote as upstream, use
git push --set-upstream...
What is the difference between instanceof and Class.isAssignableFrom(…)?
...ed with any class objects:
a instanceof int // syntax error
3 instanceof Foo // syntax error
int.class.isAssignableFrom(int.class) // true
See http://java.sun.com/javase/6/docs/api/java/lang/Class.html#isAssignableFrom(java.lang.Class).
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How can I use if/else in a dictionary comprehension?
... the following dictionary of sets
d = {'key1': {'a', 'b', 'c'}, 'key2': {'foo', 'bar'}, 'key3': {'so', 'sad'}}
and you want to create a new dictionary whose keys indicate whether the string 'a' is contained in the values or not, you can use
dout = {"a_in_values_of_{}".format(k) if 'a' in v else ...
Replace one character with another in Bash
...
Use inline shell string replacement. Example:
foo=" "
# replace first blank only
bar=${foo/ /.}
# replace all blanks
bar=${foo// /.}
See http://tldp.org/LDP/abs/html/string-manipulation.html for more details.
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Django templates: verbose version of a choice
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In Django templates you can use the "get_FOO_display()" method, that will return the readable alias for the field, where 'FOO' is the name of the field.
Note: in case the standard FormPreview templates are not using it, then you can always provide your own template...