89   function invokeFunc(time) {  argument
94     lastInvokeTime = time;
99   function leadingEdge(time) {  argument
101     lastInvokeTime = time;
105     return leading ? invokeFunc(time) : result;
108   function remainingWait(time) {  argument
109     var timeSinceLastCall = time - lastCallTime,
110         timeSinceLastInvoke = time - lastInvokeTime,
118   function shouldInvoke(time) {  argument
119     var timeSinceLastCall = time - lastCallTime,
120         timeSinceLastInvoke = time - lastInvokeTime;
130     var time = now();
131     if (shouldInvoke(time)) {
132       return trailingEdge(time);
135     timerId = setTimeout(timerExpired, remainingWait(time));
138   function trailingEdge(time) {  argument
144       return invokeFunc(time);
163     var time = now(),
164         isInvoking = shouldInvoke(time);
168     lastCallTime = time;