如何比較2個(gè)對象是否相同
較為簡單的方法，如下
//比較2個(gè)對象是否相同
function isObjEqual(o1,o2){
var props1 = Object.getOwnPropertyNames(o1);
var props2 = Object.getOwnPropertyNames(o2);
if (props1.length != props2.length) {
return false;
}
for (var i = 0,max = props1.length; i < max; i++) {
var propName = props1[i];
if (o1[propName] !== o2[propName]) {
return false;
}
}
return true;
}
var obj1 = {id:1,name:"張三"}
var obj2 = {id:2,name:"李四"}
var obj3 = {id:1,name:"張三",age:25}
var obj4 = {id:1,name:"張三"}
console.log(isObjEqual(obj1,obj2));//false
console.log(isObjEqual(obj1,obj3));//false
console.log(isObjEqual(obj1,obj4));//true
擴(kuò)展寫法：
Object.prototype.vequal = function(obj){
var props1 = Object.getOwnPropertyNames(this);
var props2 = Object.getOwnPropertyNames(obj);
if (props1.length != props2.length) {
return false;
}
for (var i = 0,max = props1.length; i < max; i++) {
var propName = props1[i];
if (this[propName] !== obj[propName]) {
return false;
}
}
return true;
}
var obj1 = {id:1,name:"張三"}
var obj2 = {id:2,name:"李四"}
var obj3 = {id:1,name:"張三",age:25}
var obj4 = {id:1,name:"張三"}
console.log(obj1.equal(obj2));//false
console.log(obj1.equal(obj3));//false
console.log(obj1.equal(obj4));//true
參考：https://blog.csdn.net/yqwang75457/article/details/62226145
