var myNum = new Number(35);

the valueOf() method returns the string "35". When the object is user-defined, the method returns [object Object]. Try it for the following Employee object:

function Employee() {
  this.dept = "HR";
  this.manager = "John Johnson";
}

function printProp() {
  var Ken = new Employee();
  alert(Ken.valueOf());
}

People who read this tip also read these tips:

• File Operations and Properties
• Defining an Object's Methods with Anonymous Functions
• Counting Pages in A Print Job
• Printing the DOM
• Setting and Getting the File Attributes