In Javascript Class, how to call the prototype method.(three method) |
1、Using Javascript eval Method 。 2、using a veriables save object "this" reference. 3、in innerHTML, we can using String to pass the prototype Method 。 e.g. <SCRIPT LANGUAGE="JavaScript"> <!-- function myClass(instanceName) { this.instanceName = instanceName; this.instance = this; return this; }; myClass.prototype.toAlert=function() { eval(this.instanceName).callback(); // the first method to call prototype function. this.instance.callback(); // the second method to call prototype function. // the third method to call prototype function. document.write("<a href=javascript:void(0); onclick=" + this.instanceName + ".callback();>instance call prototype function.</a>") }; myClass.prototype.callback=function() { alert("blueDestiny, never-online"); }; var a = new myClass("a"); a.toAlert(); //--> </SCRIPT> |