made with esnextbin
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March 16, 2016 18:11
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esnextbin sketch
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| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>ESNextbin Sketch</title> | |
| <!-- put additional styles and scripts here --> | |
| </head> | |
| <body> | |
| <!-- put markup and other contents here --> | |
| <div id="root"></div> | |
| </body> | |
| </html> |
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| import { compact, uniq, take } from 'lodash' | |
| const wrap = function (fn, ...args) { | |
| return fn(this, ...args) | |
| } | |
| const exampleData = [ | |
| { date: '03/12/2012', text: '12 марта' }, | |
| { date: '03/13/2012', text: '13 марта' }, | |
| { date: '04/12/1961', text: '12 апреля' }, | |
| null, | |
| { date: '06/22/2014', text: '12 июля' }, | |
| ] | |
| const getDateProp = obj => obj.date | |
| const getYear = dateString => (new Date(dateString)).getFullYear() | |
| const result = exampleData | |
| ::wrap(compact) | |
| .map(getDateProp) | |
| .map(getYear) | |
| ::wrap(uniq) | |
| .sort() | |
| ::wrap(take, 2) | |
| console.log(result) // [1961, 2012] |
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| { | |
| "name": "esnextbin-sketch", | |
| "version": "0.0.0", | |
| "dependencies": { | |
| "lodash": "4.5.0" | |
| } | |
| } |
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| 'use strict'; | |
| var _context; | |
| var _lodash = require('lodash'); | |
| var wrap = function wrap(fn) { | |
| for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { | |
| args[_key - 1] = arguments[_key]; | |
| } | |
| return fn.apply(undefined, [this].concat(args)); | |
| }; | |
| var exampleData = [{ date: '03/12/2012', text: '12 марта' }, { date: '03/13/2012', text: '13 марта' }, { date: '04/12/1961', text: '12 апреля' }, null, { date: '06/22/2014', text: '12 июля' }]; | |
| var getDateProp = function getDateProp(obj) { | |
| return obj.date; | |
| }; | |
| var getYear = function getYear(dateString) { | |
| return new Date(dateString).getFullYear(); | |
| }; | |
| var result = (_context = (_context = wrap.call(exampleData, _lodash.compact).map(getDateProp).map(getYear), wrap).call(_context, _lodash.uniq).sort(), wrap).call(_context, _lodash.take, 2); | |
| console.log(result); // [1961, 2012] |
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