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Fixed errors and inconsistencies with point-free

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jethro larson 2016-02-20 15:09:47 -08:00
parent 0a9c2169ef
commit ee69aed809
1 changed files with 3 additions and 3 deletions
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@ -133,13 +133,13 @@ let add = (a, b) => a + b;
// Not points-free - `numbers` is an explicit parameter // Not points-free - `numbers` is an explicit parameter
let incrementAll = (numbers) => map(add(1))(numbers); let incrementAll = (numbers) => map(add(1))(numbers);
// Points-free - The array is an implicit parameter // Points-free - The list is an implicit parameter
let incrementAll2 = map(add(1)); let incrementAll2 = map(add(1));
``` ```
`total1` lists and uses the parameter `numbers`, so it is not points-free. `total2` is written just by combining functions and values, making no mention of its arguments. It __is__ points-free. `incrementAll` identifies and uses the parameter `numbers`, so it is not points-free. `incrementAll2` is written just by combining functions and values, making no mention of its arguments. It __is__ points-free.
It is easy to recognize points-free function definitions; they are the ones that contain no '`function`' keywords and no fat arrows. Points-free function definitions look just like normal assignments without `function` or `=>`.
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