Add adds a timing job to the default timer, which runs in interval of `interval`.

AddOnce is a convenience function for adding a job which only runs once and then exits.

DefaultOptions creates and returns a default options object for Timer creation.

New creates and returns a Timer.

SetInterval runs the job every duration of `delay`.

SetTimeout runs the job once after duration of `delay`.

Job or Timer is closed and waiting to be deleted.

Job or Timer is ready for running.

Job or Timer is already running.

Job or Timer is stopped.

Entry is the timing job.

Timer is the timer manager, which uses ticks to calculate the timing interval.

TimerOptions is the configuration object for Timer.

JobFunc is the timing called job function in timer.