README.markdown (1165B)
1 concat-map 2 ========== 3 4 Concatenative mapdashery. 5 6 [![browser support](http://ci.testling.com/substack/node-concat-map.png)](http://ci.testling.com/substack/node-concat-map) 7 8 [![build status](https://secure.travis-ci.org/substack/node-concat-map.png)](http://travis-ci.org/substack/node-concat-map) 9 10 example 11 ======= 12 13 ``` js 14 var concatMap = require('concat-map'); 15 var xs = [ 1, 2, 3, 4, 5, 6 ]; 16 var ys = concatMap(xs, function (x) { 17 return x % 2 ? [ x - 0.1, x, x + 0.1 ] : []; 18 }); 19 console.dir(ys); 20 ``` 21 22 *** 23 24 ``` 25 [ 0.9, 1, 1.1, 2.9, 3, 3.1, 4.9, 5, 5.1 ] 26 ``` 27 28 methods 29 ======= 30 31 ``` js 32 var concatMap = require('concat-map') 33 ``` 34 35 concatMap(xs, fn) 36 ----------------- 37 38 Return an array of concatenated elements by calling `fn(x, i)` for each element 39 `x` and each index `i` in the array `xs`. 40 41 When `fn(x, i)` returns an array, its result will be concatenated with the 42 result array. If `fn(x, i)` returns anything else, that value will be pushed 43 onto the end of the result array. 44 45 install 46 ======= 47 48 With [npm](http://npmjs.org) do: 49 50 ``` 51 npm install concat-map 52 ``` 53 54 license 55 ======= 56 57 MIT 58 59 notes 60 ===== 61 62 This module was written while sitting high above the ground in a tree.