The current documentation states that `initialDelay` and `interval`
are divided by 1000 and rounded down, but does not explicitly mention
that values less than 1000ms will result in 0 seconds. This can lead
to confusion when users pass values like 400ms expecting sub-second
keepalive delays.
Add a concrete example showing that 400ms rounds down to 0 seconds.
Refs: https://github.com/nodejs/node/issues/57712
Signed-off-by: haramjeong <04harams77@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/65869
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ulises Gascón <ulisesgascongonzalez@gmail.com>
Haram Jeong
7c01b98cfa