通过JS深度判断两个对象字段相同

 /** * 判断此对象是否是Object类型 * @param {Object} obj */ function isObject(obj){ return Object.prototype.toString.call(obj)==='[object Object]'; }; /** * 判断此类型是否是Array类型 * @param {Array} arr */ function isArray(arr){ return Object.prototype.toString.call(arr)==='[object Array]'; }; /** * 深度比较两个对象是否相同 * @param {Object} oldData * @param {Object} newData */ function equalsObj(oldData,newData){ // 类型为基本类型时,如果相同,则返回true if(oldData===newData)return true; if(isObject(oldData)&&isObject(newData)&&Object.keys(oldData).length === Object.keys(newData).length){ // 类型为对象并且元素个数相同 // 遍历所有对象中所有属性,判断元素是否相同 for (const key in oldData) { if (oldData.hasOwnProperty(key)) { if(!equalsObj(oldData[key],newData[key])) // 对象中具有不相同属性 返回false return false; } } }else if(isArray(oldData)&&isArray(oldData)&&oldData.length===newData.length){ // 类型为数组并且数组长度相同 for (let i = 0,length=oldData.length; i 

 var oldArr = [1,2, [ { name:"张三", age:11, } ], { name:'李四', age:21, em:[ { address:'邯郸', phone:'123' }, { address:'北京', phone:234 } ] } ]; var newArr = [1,2, [ { name:"张三", age:11 } ], { name:'李四', age:21, em:[ { address:'邯郸', phone:'123' }, { address:'北京', phone:234 } ] } ]; console.log(equalsObj(oldArr,newArr));