Spotify Apps API - Handling arguments and creating navigational tabs

spotify-apps-sandbox-creating_tabs.js

sp = getSpotifyApi(1);   
var models = sp.require('sp://import/scripts/api/models');

tabs(); // See function definition below

/* When a user clicks a tab, the "arguments" property on the 
 * Application object changes, and the tabs() function fires */               
models.application.observe(models.EVENT.ARGUMENTSCHANGED, tabs);  

function tabs() {
    var args = models.application.arguments;
    $('.section').hide(); // Hide all sections
    $('#'+args[0]).show(); // Show the current section
}