Identify the methods within component

Webix JS
1

Hi, How do I identify whether particular method exist within component?I wanted to achieve something like this:
if(element.HasMethod(“showPopup”))
{
//Process
}

I have checked HasMethod which is in webix.ui,but not sure does it serve this purpose.

2

Normally you can use just a plain check

if ($$("some").getItem)){
    //view has method getItem
}

HasMethod has a more specific use-case. It says is some type of views support the method

if (webix.ui.hasMethod("list", "getItem")){
}

in above code snippet “list” is a type of views, not the ID