javascript prototype attribute
Translation results：
English [ˈprəʊtətaɪp] US [ˈproʊtətaɪp]
##n.Prototype, prototype, blueprintPlural: prototypesjavascript prototype attributesyntax
What is the prototype attribute?
#The prototype attribute is a function-specific attribute and is also the prototype object of the function. The attributes and methods added to the prototype object can be inherited by objects after new is instantiated.
Function:The prototype attribute gives you the ability to add properties and methods to an object.
Syntax: object.prototype.name=value
javascript prototype attributeexample
<html>
<body>
<script type="text/javascript">
function employee(name,job,born)
{
this.name=name;
this.job=job;
this.born=born;
}
var bill=new employee("Bill Gates","Engineer",1985);
employee.prototype.salary=null;
bill.salary=20000;
document.write(bill.salary);
</script>
</body>
</html>Run instance »
Click the "Run instance" button to view the online instance