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What is Hindley-Milner?
...tion in ML, you can see the type parameter thus:
fun 'a length [] = 0
| 'a length (x::xs) = 1 + length xs
If a term has a Hindley-Milner type, then the principal type can be inferred without requiring any type declarations or other annotations by the programmer. (This is a mixed blessing...
How to extract epoch from LocalDate and LocalDateTime?
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edited Sep 30 '18 at 19:22
answered Apr 10 '14 at 15:36
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Rails.env vs RAILS_ENV
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edited Jan 6 '14 at 21:40
sameers
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answered Apr...
How do you determine which backend is being used by matplotlib?
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answered Aug 26 '10 at 22:26
AndrewAndrew
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How can I add a help method to a shell script?
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here's an example for bash:
usage="$(basename "$0") [-h] [-s n] -- program to calculate the answer to life, the universe and everything
where:
-h show this help text
-s set the seed value (default: 42)"
seed=42
while getopts ':hs:' option; do
case "$option" i...
Haskell export current module with additional imported module
...M. DuBuisson
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Scala Doubles, and Precision
...formance.
– Rex Kerr
Jun 19 '12 at 20:33
28
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How to determine if a number is a prime with regex?
...lly, is there zero or one character-- or, per what I mentioned above, n == 0 || n == 1. If we have the match, then return the negation of that. This corresponds with the fact that zero and one are NOT prime.
(..+?)\\1+
The second part of the regex is a little trickier, relying on groups and backr...
Newline in JLabel
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Nathan
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answered Jul 7 '09 at 2:33
freitassfreitass
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Batch files - number of command line arguments
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105
Googling a bit gives you the following result from wikibooks:
set argC=0
for %%x in (%*) do Se...