1. Define type
function UserObject (parameter) {
}
parameter can be omitted, which is equivalent to the constructor parameter in C#.
2. Instantiate the custom type
3. Add attributes
function userobject(parameter){
this.firstproperty=parameter
this.secondproperty=" This is the second property"
}
//Use
<script> <br>var myobject=new userobject("hi there.") <br>//alerts "hi there." <br>alert(myobject.firstproperty) <br>//writes "This is the second property" <br>document.write(myobject.secondproperty) <br></script>
4. Add method (circle class )
//first method function
function computearea(){
var area=this.radius*this.radius*3.14
return area
}
//second method function
function computediameter(){
var diameter =this.radius*2
return diameter
}
Associated to the custom type:
Use custom method:
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