Analysis of Static classes and JSON in JavaScript

Here we will introduce the JavaScript static class and JSON. Many people doubt the relationship between JavaScript static and JSON. I believe you will have your own opinions after reading the full text.

Let's first look at a simple static class. There is no method for only public fields.

Var Person = {id: 1, name: "Jerry "};

I don't know whether you have found it is similar to the JSON format.

Var Person = {"id": 1, "name": "Jerry "};

We should have discovered the difference between a JSON object and a static class. The key name of a static class is a string with double quotation marks, while that of a static class is not a public field or method, however, there is no difference in usage. I don't understand why the JSON standard is like this, the following figure comes from the http://www.json.org/

I personally prefer the first format. Next I will introduce the static class as a verification tool class.
First, a regular enumeration is required.

 
 

  
  
// Regular expression-it can be regarded as a static class or an enumeration class. 
  
  
Var Regex = {
  
  
Number:/^ \ d +/
  
  
};
 
 

The following is the verification tool class. Of course it is not very powerful. I am just a small example here to illustrate the usage of JavaScript static classes.

 
 

  
  
// Verification tool-static class 
  
  
Var Validate = {
  
  
// Icon-public field, I do not know how to implement private field 
  
  
IconOk:"OK",
  
  
IconError:"Error",
  
  
// Static method-Enumeration 
  
  
Match: function (regex, text ){
  
  
// This keyword is required for internal use of fields. 
  
  
If(Regex. test (text ))
  
  
Document. getElementById ("Error"). InnerHTML =This. IconOk;
  
  
Else 
  
  
Document. getElementById ("Error"). InnerHTML =This. IconError;
  
  
}
  
  
};
  
  
 
  
  
  "Text" Onblur = "Validate. match (Regex. number, this. value )" /> 
  
  
"Error">
 
 

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