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Functional generators
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| 'use strict'; | |
| let R = require('ramda'); | |
| let map = R.curry(function*(fun, list) { | |
| for (let i of list) { | |
| console.log('map'); | |
| yield fun(i); | |
| } | |
| }); | |
| let find = R.curry(function*(predicate, list) { | |
| for (let i of list) { | |
| console.log('find'); | |
| if (predicate(i)) { | |
| yield i; | |
| return; | |
| } | |
| } | |
| }); | |
| let take = R.curry(function*(n, list) { | |
| let count = 0; | |
| for (let i of list) { | |
| console.log('take'); | |
| if (count < n) { | |
| count++; | |
| yield i; | |
| } else { | |
| return; | |
| } | |
| } | |
| }); | |
| let nth = R.curry(function*(nth, list) { | |
| console.log('nth'); | |
| yield list[nth]; | |
| return; | |
| }); | |
| let mapTakeNth = R.pipe( | |
| map(x => x + 1), | |
| take(3), | |
| nth(1) | |
| //find(x => x === 4) | |
| ); | |
| let a = [1, 2, 3, 4, 5, 6]; | |
| for (let i of mapTakeNth(a)) { | |
| console.log(i); | |
| } |
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