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Switch case with fallthrough?
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314
Use a vertical bar (|) for "or".
case "$C" in
"1")
do_this()
;;
"2" | "3")
do_wha...
Clojure: cons (seq) vs. conj (list)
...ments to insert into a collection, while cons takes just one:
(conj '(1 2 3) 4 5 6)
; => (6 5 4 1 2 3)
(cons 4 5 6 '(1 2 3))
; => IllegalArgumentException due to wrong arity
Another difference is in the class of the return value:
(class (conj '(1 2 3) 4))
; => clojure.lang.PersistentLi...
R apply function with multiple parameters
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3 Answers
3
Active
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Why does `a == b or c or d` always evaluate to True?
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3 Answers
3
Active
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How to get one value at a time from a generator function in Python?
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answered Mar 10 '10 at 19:13
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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How do you rename a table in SQLite 3.0?
How do you rename a table in SQLite 3.0?
2 Answers
2
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How can I create a Set of Sets in Python?
... answered May 9 '11 at 0:18
a3nma3nm
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validation custom message for rails 3
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edited Mar 4 '15 at 3:20
Andrew Hendrie
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an...
filter items in a python dictionary where keys contain a specific string
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183
How about a dict comprehension:
filtered_dict = {k:v for k,v in d.iteritems() if filter_string ...
Rails 3 datatypes?
Where can I find a list of data types that can be used in rails 3? (such as text, string, integer, float, date, etc.?) I keep randomly learning about new ones, but I'd love to have a list I could easily refer to.
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