d3.timeout(callback[, delay[, time]]) Like

timer.restart(callback[, delay[, time]]) Restart a timer with the specified callback and optional

d3.interval(callback[, delay[, time]]) Like

d3.now() Returns the current time as defined by

timer.stop() Stops this timer, preventing subsequent callbacks. This method has no effect if the timer has already stopped

d3.timerFlush() Immediately invoke any eligible timer callbacks. Note that zero-delay timers are normally first executed after one

d3.timer(callback[, delay[, time]]) Schedules a new timer, invoking the specified callback repeatedly