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func make_adder(x:Int)-> func(y:Int)->Int:
return func(y:Int) x + y
func suffix_fn(fn:func(t:Text)->Text, suffix:Text)->func(t:Text)->Text:
return func(t:Text) fn(t)++suffix
func mul_func(n:Int, fn:func(x:Int)->Int)-> func(x:Int)->Int:
return func(x:Int) n*fn(x)
func main():
>> add_one := func(x:Int) x + 1
>> add_one(10)
= 11
>> shout := func(msg:Text) say("{msg:upper()}!")
>> shout("hello")
>> asdf := add_one
>> asdf(99)
= 100
>> add_100 := make_adder(100)
>> add_100(5)
= 105
>> shout2 := suffix_fn(Text.upper, "!")
>> shout2("hello")
= "HELLO!"
>> abs100 := mul_func(100, Int.abs)
>> abs100(-5)
= 500
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