var obj = {
    prop: 1,
    getProp: function(){
         return function() { console.log(this.prop) };
    },
};

obj.getProp()();

var obj = {
    prop: 1,
    getProp: function(){
         return function () {
              console.log(this.prop);
         }
    },
};

console.log('hello world')

fsfsdfsdfdsfsdf

refre

alert('123');