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This document uses PHP Chinese website manual Release
獲取自 Unix 紀(jì)元(1970年1月1日00:00:00 UTC)以來(lái)經(jīng)過(guò)的毫秒數(shù)的時(shí)間戳。
2.4.0
(數(shù)字):返回時(shí)間戳(timestamp)。
_.defer(function(stamp) { console.log(_.now() - stamp);}, _.now()); // => Logs the number of milliseconds it took for the deferred invocation.