Function createRegisterEventWithLowercaseMessageCenter

src/core/echarts.ts:337–341

(method: EventMethodName)

    };
}
function createRegisterEventWithLowercaseMessageCenter(method: EventMethodName) {
    return function (this: MessageCenter, ...args: any): MessageCenter {
        return toLowercaseNameAndCallEventful<MessageCenter>(this, method, args);
    };
}
function toLowercaseNameAndCallEventful<T>(host: T, method: EventMethodName, args: any): T {
    // `args[0]` is event name. Event name is all lowercase.
    args[0] = args[0] && args[0].toLowerCase();