import { reduce } from 'ramda' ; function getMinutesList ( MINUTE_SCALE ) { return reduce ( ( result ) => { const index = result . length ; const value = ( 60 / MINUTE_SCALE ) * index ; const text = `${ `${ value }0` . slice ( 0 , 2 ) } min` ; return result . concat ( { value , text , } ) ; } , [ ] , new Array ( MINUTE_SCALE ) ) ; } function getHoursList ( HOUR_SCALE ) { if ( HOUR_SCALE > 23 ) { throw new Error ( 'HOUR_SCALE must be less than 23.' ) ; } return reduce ( ( result ) => { const value = result . length ; const text = `${ `0${ value }0` . slice ( - 3 , - 1 ) } hr` ; return result . concat ( { value , text , } ) ; } , [ ] , new Array ( HOUR_SCALE ) ) ; } export { getHoursList , getMinutesList } ;