I would like to ask you how the selected time period becomes a timestamp. I would like to compare it with the one in the table.
I would like to ask you how the selected time period becomes a timestamp. I would like to compare it with the one in the table.
as shown in the figure, first see how to change a string date into a time stamp
time period, just change both ends.
you mentioned that if you want to compare with the table, you need to pay attention to
. timestamp refers to the total number of seconds since 00:00:00 GMT on January 1, 1970 (08:00:00 on January 1, 1970, Beijing time).
means that the timestamp is the number of seconds at a point in time (calculated from 00:00:00 on January 1, 1970).
you can look up the timestamp at a point in time from this site-> timestamp conversion
js converts the time stamp
var timestamp = (new Date ()). GetTime ();
for example, 2018-10-09 timestamp is 1539014400
2018-10-12 timestamp is 1539273600
the timestamp of the data to be queried is time > 1539014400 and time < 1539273600
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