number.sub(number[, number, ...]) → number time.sub(number[, number, ...]) → time time.sub(time) → number
Subtract two numbers.
Example: It’s as easy as 2 - 2 = 0.
r.expr(2).sub(2).run(conn);
Example: Create a date one year ago today.
r.now().sub(365*24*60*60);
Example: Retrieve how many seconds elapsed between today and date.
r.now().sub(date);
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