Sample code to get the number of properties of a Javascript object_javascript skills

As shown below:

Copy code The code is as follows:

//Extend the count method of the object
Object.prototype.count = (
Object.prototype.hasOwnProperty('__count__')
) ? function () {
return this.__count__;
} : function () {
var count = 0;
for (var i in this) if (this.hasOwnProperty(i)) {
count ;
}
return count;
};

//Use
var myObj = {
name1: “value1″,
name2: “value2″
};

alert(myObj.count());