1.Hello Word

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Hello World!
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 2.

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Hello World!
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1 function sayHi(){   2         Person.prototype.name = "Nicholas";  3         Person.prototype.age = 29;  4         Person.prototype.job = "Software Engineer";  5         Person.prototype.sayName = function(){  6         alert(this.name);  7         };  8         var person = new Person();          9         alert(person.name);  10         person.sayName();11         person.name = "Greg"; 12     } 13     function Person(){ 14     }