Channel.prototype.unsubscribe = function()

in src/common/channel.js [197:218]

• 18 lines of code
• 6 McCabe index (conditional complexity)

Channel.prototype.unsubscribe = function (eventListenerOrFunction) {
    checkSubscriptionArgument(eventListenerOrFunction);
    var handleEvent, guid, handler;

    if (eventListenerOrFunction && typeof eventListenerOrFunction === 'object') {
        // Received an EventListener object implementing the handleEvent interface
        handleEvent = eventListenerOrFunction.handleEvent;
    } else {
        // Received a function to handle event
        handleEvent = eventListenerOrFunction;
    }

    guid = handleEvent.observer_guid;
    handler = this.handlers[guid];
    if (handler) {
        delete this.handlers[guid];
        this.numHandlers--;
        if (this.numHandlers === 0) {
            this.onHasSubscribersChange && this.onHasSubscribersChange();
        }
    }
};