The examples in this article describe the way JavaScript defines classes and objects. Share to everyone for your reference. The specific methods are as follows:
In JS, classes and objects have a variety of different ways of writing, because I am not familiar with JS, so I understand to write, if any friend found that there is wrong, please tell them, learn together.
JS defines a class with two methods (I only know these two):
1. How to define a function:
Defined:
Copy Code code as follows:
function ClassA (a)
{
This.aaa=a; Add a property
This.methoda=function (PPP)//Add a method
{
Alert (PPP);
}
}
ClassA.prototype.color = "Red"; Adding the properties of an object with the prototype method also applies to instances of the class (object)
ClassA.prototype.tellColor = function ()///method to add an object with the prototype method, and this method also applies to instances of the class (object)
{
Return ' color of ' +this.name+ ' is ' +this.color;
}
How to use:
Copy Code code as follows:
var oclassa=new classa (' This is a class example! '); Instantiating classes
var temp=oclassa.aaa; Use Properties AAA
Oclassa.methoda (temp); How to use MethodA
2. How to instantiate the object class first
Defined:
Copy Code code as follows:
var oclassa=new Object (); Instantiate the underlying class object first
Oclassa.aaa= ' is a class example! '; Add a property
Oclassa.methoda=function (PPP)//Add a method
{
Alert (PPP);
}
OclassA.prototype.color = "Red"; To add an object's properties by using the prototype method
OclassA.prototype.tellColor = function ()//method to add an object using the prototype method
{
Return ' color of ' +this.name+ ' is ' +this.color;
}
How to use:
Can be used directly with Oclassa, such as:
Copy Code code as follows:
var temp=oclassa.aaa; Use Properties AAA
Oclassa.methoda (temp); How to use MethodA
I hope this article will help you with your JavaScript programming.
