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JavaScript Date prototype Property
Example
Make a new date method that gives the date object a month-name property called myProp:
Date.prototype.myMet=function()
{
if (this.getMonth()==0){this.myProp="January"};
if (this.getMonth()==1){this.myProp="February"};
if (this.getMonth()==2){this.myProp="March"};
if (this.getMonth()==3){this.myProp="April"};
if (this.getMonth()==4){this.myProp="May"};
if (this.getMonth()==5){this.myProp="June"};
if (this.getMonth()==6){this.myProp="July"};
if (this.getMonth()==7){this.myProp="August"};
if (this.getMonth()==8){this.myProp="Spetember"};
if (this.getMonth()==9){this.myProp="October"};
if (this.getMonth()==10){this.myProp="November"};
if (this.getMonth()==11){this.myProp="December"};
}
{
if (this.getMonth()==0){this.myProp="January"};
if (this.getMonth()==1){this.myProp="February"};
if (this.getMonth()==2){this.myProp="March"};
if (this.getMonth()==3){this.myProp="April"};
if (this.getMonth()==4){this.myProp="May"};
if (this.getMonth()==5){this.myProp="June"};
if (this.getMonth()==6){this.myProp="July"};
if (this.getMonth()==7){this.myProp="August"};
if (this.getMonth()==8){this.myProp="Spetember"};
if (this.getMonth()==9){this.myProp="October"};
if (this.getMonth()==10){this.myProp="November"};
if (this.getMonth()==11){this.myProp="December"};
}
Make a Date object, then call the myMet method:
var d = new Date();
d.myMet();
var monthname = d.myProp;
d.myMet();
var monthname = d.myProp;
The result of monthname will be:
Try it yourself »
Definition and Usage
The prototype constructor allows you to add new properties and methods to the Date() object.
When constructing a property, ALL date objects will be given the property, and it's value, as default.
When constructing a method, ALL date objects will have this method available.
Note: Date.prototype does not refer to a single date object, but to the Date() object itself.
Note: Prototype is a global object constructor which is available for all JavaScript objects.
Browser Support
The prototype property is supported in all major browsers.
Syntax
Date.prototype.name=value
JavaScript Date Object
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