W3School TIY Editor
W3School 在线教程
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<!DOCTYPE html> <html> <body> <p id="demo"></p> <script> var person = { firstName: "Bill", lastName : "Gates", id : 678, }; person.name = function() { return this.firstName + " " + this.lastName; }; document.getElementById("demo").innerHTML = "My friend is " + person.name(); </script> </body> </html>