nativescript

I am trying to create a FAQs type of screen in my app however am not finding a way to show questions and collapse the answers when someone tap in the item. I already tried using RadDataForm Groups and was able to do the collapsing but I was not able to resize the screen and elements so now am trying with Accordion. Still I am not able to collapse or even show the questions. I saw someone here saying they were able to make the list work without Accordion just by using collapse and visible attributes but they did not share how they did it. When I click in the names on the list nothing happens. I

Can anyone help me on this? I am trying to run my NativeScript + Angular app in my iPhone. Terminal Creation Created tns create mysample --ng app, added iOS platform, successfully built with warnings and run time error arising when I tried to run in Xcode. Playground Creation Downloaded NativeScript + Angular app from NativeScriptPlayground , added iOS platform, successfully built with warnings and run time error arising when I tried to run in Xcode. Issue: In both cases, app is successfully installed in my device but when launch screen is launched, then immediately app is getting crashed.

When I create two new apps with tns, one is the regular js version and one is with typescript. I get a strange error in the typescript version when I try to access a native library. When I create a loaded function with a console.log(pow(x,y)), it works fine with the js version but the typescript version crashes with this error. error TS2304: Cannot find name 'pow'. Why? TS: import { EventData } from "data/observable"; import { Page } from "ui/page"; import { HelloWorldModel } from "./main-view-model"; // Event handler for Page "navigatingTo" event attached in main-page.xml export function