JS实现给数组对象排序的方法分析

function createComprisonFunction(propertyName){    return function(object1,object2){        var value1 = object1[propertyName];        var value2 = object2[propertyName];        if(value1 < value2){            return -1;        }else if(value1 > value2){            return 1;        }else{            return 0;        }    }}//上面的函数可以像在下面的列子中这样使用var data = [{name:"Zachary",age:28},{name:"Nicholas",age:29}];data.sort(createComprisonFunction("name"));console.log(data[0].name); //Nicholasdata.sort(createComprisonFunction("age"));console.log(data[0].name); //Zachary