JavaScript 对象
JS Array
JS Boolean
JS Date
JS Math
JS Number
JS String
JS RegExp
JS Functions
JS Events
http://www.w3school.com.cn/js/js_reference.asp
prototype 属性使您有能力向对象添加属性和方法。
语法
object.prototype.name=value <script type="text/javascript"> String.prototype.trim = function() { return this.replace(/^[\s\u3000\xA0]+|[\s\u3000\xA0]+$/g,""); } function Employee(name,job,born) { this.name=name; this.job=job; this.born=born; } var bill=new Employee(" Bill Gates","Engineer",1985); Employee.prototype.salary=null; bill.salary=20000; document.write(bill.salary); document.write(bill.name.trim()); -- 结果2000Bill Gates </script>