Function cb

libs/echarts/echarts-en.simple.js:24941–24973

()

    }

    var cb = function () {
        currCall = (new Date()).getTime();
        scope = this;
        args = arguments;
        var thisDelay = debounceNextCall || delay;
        var thisDebounce = debounceNextCall || debounce;
        debounceNextCall = null;
        diff = currCall - (thisDebounce ? lastCall : lastExec) - thisDelay;

        clearTimeout(timer);

        // Here we should make sure that: the `exec` SHOULD NOT be called later
        // than a new call of `cb`, that is, preserving the command order. Consider
        // calculating "scale rate" when roaming as an example. When a call of `cb`
        // happens, either the `exec` is called dierectly, or the call is delayed.
        // But the delayed call should never be later than next call of `cb`. Under
        // this assurance, we can simply update view state each time `dispatchAction`
        // triggered by user roaming, but not need to add extra code to avoid the
        // state being "rolled-back".
        if (thisDebounce) {
            timer = setTimeout(exec, thisDelay);
        }
        else {
            if (diff >= 0) {
                exec();
            }
            else {
                timer = setTimeout(exec, -diff);
            }
        }

        lastCall = currCall;
    };

    /**
     * Clear throttle.