/*** 判斷此對象是否是Object類型* @param {Object} obj */function isObject(obj){return Object.prototype.toString.call(obj)==='[object Object]';};/*** 判斷此類型是否是Array類型* @param {Array} arr */function isArray(arr){return Object.prototype.toString.call(arr)==='[object Array]';};/*** 深度比較兩個對象是否相同* @param {Object} oldData * @param {Object} newData */function equalsObj(oldData,newData){// 類型為基本類型時,如果相同,則返回trueif(oldData===newData)return true;if(isObject(oldData)&&isObject(newData)&&Object.keys(oldData).length === Object.keys(newData).length){// 類型為對象并且元素個數相同// 遍歷所有對象中所有屬性,判斷元素是否相同for (const key in oldData) {if (oldData.hasOwnProperty(key)) {if(!equalsObj(oldData[key],newData[key]))// 對象中具有不相同屬性 返回falsereturn false;}}}else if(isArray(oldData)&&isArray(oldData)&&oldData.length===newData.length){// 類型為數組并且數組長度相同for (let i = 0,length=oldData.length; i <length; i++) {if(!equalsObj(oldData[i],newData[i]))// 如果數組元素中具有不相同元素,返回falsereturn false;}}else{// 其它類型,均返回falsereturn false;}// 走到這里,說明數組或者對象中所有元素都相同,返回truereturn true;};

var oldArr = [1,2,[{name:"張三",age:11,}],{name:'李四',age:21,em:[{address:'邯鄲',phone:'123'},{address:'北京',phone:234}]}];var newArr = [1,2,[{name:"張三",age:11}],{name:'李四',age:21,em:[{address:'邯鄲',phone:'123'},{address:'北京',phone:234}]}];console.log(equalsObj(oldArr,newArr));