May be its simple post.But its big enough to differentiate the object and variable in javascript. var someVariable = "Some text"; var someOtherVariable = ["Name1","Name2","Name"]; The above lines are just variable declaration with keyword "var". In javascript,Object Instantiation also can be done in the same fashion but with curly open and closed braces {}. Example: var mYObject = { Name:"Murugesa Pandian"; WhoIsHe:function() { return "Working as Programmer";} } Now mYObject is an Object which holds the property or attribute or you may be call "Member" ,Name and method(function) WhoIsHe. Call it as document.write(mYObject.Name); document.write(myObject.WhoIsHe());