dynamicprototypeexample.htm

来自「If you are using Internet Explorer on Wi」· HTM 代码 · 共 36 行

HTM
36
字号
<html>
<head>
<title>Example</title>
</head>
<body>
<script type="text/javascript">
function Car(sColor, iDoors, iMpg) {
    this.color = sColor;
    this.doors = iDoors;
    this.mpg = iMpg;
    this.drivers = new Array("Mike", "Sue");

    if (typeof Car._initialized == "undefined") {

        Car.prototype.showColor = function () {
            alert(this.color);
        };

        Car._initialized = true;
    }
}


var oCar1 = new Car("red", 4, 23);
var oCar2 = new Car("blue", 3, 25);

oCar1.drivers.push("Matt");

alert(oCar1.drivers);    //outputs "Mike,Sue,Matt"
alert(oCar2.drivers);    //outputs "Mike,Sue"

</script>
 
</body>
</html>

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