let obj1 = {

    name:'张三',

    age:19

};

let obj2 = {

    name:'李四',

    age:22

};

function compareObjectFunction(propName){

    return function(obj1,obj2){

        let val1 = obj1[propName],

            val2 = obj2[propName];

        if(val1 < val2){

            return -1;

        }else if(val1 > val2){

            return 1;

        }else{

            return 0;

        }

    }

}

const compareName = compareObjectFunction('name');

compareName(obj1,obj2);

const compareAge = compareObjectFunction('age');

compareAge(obj1,obj2);