It merges an array of arrivals with departures and adds some values (1 when the train arrives and -1 when it departures). Result of it should be an array of sth like: [{time: 9:00, value: 1}, ....,{time: 2000, value: -1}]
Then I sort it like you did it.
.reduce is loop that's going through the "timetable" and it is doing two things:
add 1 if train comes and subtracts if it departures
check what is current number of trains and save max of this value
It merges an array of arrivals with departures and adds some values (1 when the train arrives and -1 when it departures). Result of it should be an array of sth like:
[{time: 9:00, value: 1}, ....,{time: 2000, value: -1}]Then I sort it like you did it.
.reduceis loop that's going through the "timetable" and it is doing two things:Wow! This is so efficient! Thanks for sharing it !!