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A-M baby

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Ingy döt Net 2013-04-10 21:29:02 -07:00
parent 764da6cbbb
commit db842d013d
19005 changed files with 197040 additions and 7 deletions
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17
Task/Higher-order-functions/E/higher-order-functions.e Normal file
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@ -0,0 +1,17 @@
def map(f, list) {
var out := []
for x in list {
out with= f(x)
}
return out
}
? map(fn x { x + x }, [1, "two"])
# value: [2, "twotwo"]
? map(1.add, [5, 10, 20])
# value: [6, 11, 21]
? def foo(x) { return -(x.size()) }
> map(foo, ["", "a", "bc"])
# value: [0, -1, -2]