A simple javascript app template :)

js_app_template.js

/**
 * A simple javascript app template;
 */
// assuming your app is called app
var app = {
  settings: {
    example : true,
    example2: ''
  },
  myfunction: function(){
    var self = this;
    var s = self.settings;
    
    console.log(s.example2);
  },
  init: function(ex2){
    var self = this;
    var s = self.settings;
    
    if (ex2){
      s.example2 = ex2;
    }
  }
};

// Then you call the app functions:
app.init('test');
app.myfunction();