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atticoos/map-custom-data-type.js

Forked from ericelliott/map-custom-data-type.js
Last active January 7, 2017 01:03
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Map with custom data type
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map-custom-data-type.js
const double = n => n * 2;
const doublePoints = obj => double(obj.points);
const doubleMap = numbers => numbers.map(doublePoints);
console.log(doubleMap([
{ name: 'ball', points: 2 },
{ name: 'coin', points: 3 },
{ name: 'candy', points: 4}
])); // [ 4, 6, 8 ]
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