JavaScript实现JSON数组排序：升序与降序实例解析

/**
 * json对象数组按照某个属性排序:降序排列
 * @param {Object} propertyName
 */
function compareDesc(propertyName) {
  return function(object1, object2) {
    var value1 = object1[propertyName];
    var value2 = object2[propertyName];
    if(value2 < value1) {
      return -1;
    } else if(value2 > value1) {
      return 1;
    } else {
      return 0;
    }
  }
}
/**
 * json对象数组按照某个属性排序:升序排列
 * @param {Object} propertyName
 */
function compareAsc(propertyName) {
  return function(object1, object2) {
    var value1 = object1[propertyName];
    var value2 = object2[propertyName];
    if(value2 < value1) {
      return 1;
    } else if(value2 > value1) {
      return -1;
    } else {
      return 0;
    }
  }
}

var students=[{name:"hhhh",age:16},{name:"ggggg",age:17},{name:"dsdsad",age:18}];
students.sort(compareDesc("age"));  //按照年龄降序排列
console.log(students);

var students=[{name:"hhhh",age:16},{name:"ggggg",age:17},{name:"dsdsad",age:18}];
students.sort(compareAsc("age"));  //按照年龄升序排列
console.log(students);