关于javascript:Js-比较两个对象的键名与键值是否相等

文中还应用了sort函数来排序，这样做的益处是只管对象程序不统一也能够比拟相等

  let obj = {        leftDom1: 'rightDom1',        leftDom2: 'rightDom1',        leftDom3: 'rightDom3',        leftDom4: 'rightDom2',      };      let obj2 = {        leftDom2: 'rightDom1',        leftDom3: 'rightDom3',        leftDom4: 'rightDom2',        leftDom1: 'rightDom1',      };      function compareObjects(obj1, obj2) {        const keys1 = Object.keys(obj1).sort();        const keys2 = Object.keys(obj2).sort();        if (keys1.length !== keys2.length) {          return false;        }        for (let i = 0; i < keys1.length; i++) {          if (keys1[i] !== keys2[i] || obj1[keys1[i]] !== obj2[keys2[i]]) {            return false;          }        }        return true;      }      console.log(compareObjects(obj, obj2)); // true