使用.prototype扩展对象和自定义对象

Posted 2021-02-27

Extend a custom object, and a pre-defined object(e.g. string) using .prototype available in JS.

//Extending an existing object
function yourMethod(){
	//statements
}
//Attach it to the String Object
String.prototype.methodName=yourMethod;
//Usage
var myVariable = "My String Here!"
myVariable.methodName();
 
 
//Extending a custom object
//Create custom object
function myObject() {
	//statements
}
//Create custom method
function customMethod(){
	//statements
}
//Create custom property
function customProperty() {
	//statements	
}
 
//Attach the property and method
myObject.prototype.methodName=customMethod;
myObject.prototype.prpertyName=customProperty;