nl_tokens: Calculate the current timestamp if needed otherwise return the last cached one .
pl_tokens: function getTimestamp ( ) { // use `Math.floor()` here to avoid the "Unix Millennium Bug" var now = Math . floor ( Date . now ( ) / 1000 ) // it's another second since the last id were created, // so we need to regenerate the timestamp if ( time !== <mask> ) { ctr = 0 timestamp = pad ( time = now , 8 , 16 ) } // Since changing parts of an identifier are the timestamp and // the sequence; the count of maximum allocatable ids in a second // is limited by the sequence size (3-bytes = about 16 million). // Otherwise uniqueness is not guaranteed. else assert ( ++ ctr < 0x1000000 , 'more than 16 million ids generated in 1 second' ) return timestamp }