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Students
dates.js
Implement and export as default a function that converts input data into a format suitable for plotting.
This function takes three arguments: a data array, the period's start date, and the period's end date. The data is given as an object of the form {value: 14, date: '08/02/2018' }
, and the dates format is 'yyyy-MM-dd'
.
The date range specifies the output array size that the implemented function should produce. Rules for forming the output array:
- it is filled with entries for each day in the
begin - end
range - if there is no day data in the input array, then set the value
0
in thevalue
property of a day entry
import buildRange from './dates.js';
const dates = [
{ value: 14, date: '02.08.2018' },
{ value: 43, date: '03.08.2018' },
];
const beginDate = '2018-08-01';
const endDate = '2018-08-04';
buildRange(dates, beginDate, endDate);
// [
// { value: 0, date: '01.08.2018' },
// { value: 14, date: '02.08.2018' },
// { value: 43, date: '03.08.2018' },
// { value: 0, date: '04.08.2018' },
// ]
Tips
Documentation on functions for working with dates:
- https://date-fns.org/v2.16.1/docs/eachDayOfInterval
- https://date-fns.org/v2.16.1/docs/format
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