tryjs_invoke_constructor 在线代码实例

 <p>该实例中， myFunction 是函数构造函数:</p>
<p id="demo"></p>
<script>
function myFunction(arg1, arg2) {
	this.firstName = arg1;
    this.lastName  = arg2;
}
var x = new myFunction("John","Doe")
document.getElementById("demo").innerHTML = x.firstName; 
</script>