How to directly declare an object in js_Basic knowledge

var ctrl = { 
init: function(){ 
this.a(); 
this.b(); 
}, 
name : "zs", 
a: function(){ 
alert("aa"); 
}, 
b: function(){ 
alert("bb"); 
} 
}; 
var str = ctrl.name; 
console.info(str); //zs 
ctrl.init(); //弹出aa,bb