Log is mechine generated human readable sequencial recorded file which help you to understands how system works
by
time sequence.
A log is kind of table or file where the records are sorted by time.
Purpose of log
log records when and what it occard
that easyly tracking process can be improved when you need
winston
Basic winston configure
format,level,and transport these three core concept need to know
Transport : in developement environment always use console transport but in production commonly use file
transport where
every log message save in file. in other
transport options