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How do I finish learning JSON in 1 hours?

Source: Internet
Author: User
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W3school

↑↑↑ Learn this, 1 hours is enough. Here is an excerpt:

code Example 1:

12<body>34 5<p>6Name: <span id= "Jname"></span><br/>7Age: <span id= "Jage"></span><br/>8Address: <span id= "Jstreet"></span><br/>9Phone: <span id= "Jphone"></span><br/>Ten</p> One  A<script type= "Text/javascript" > - var jsonobject= {"name": "Bill Gates", "Street": "Fifth Avenue New York 666", "Age": 56,17 "Phone": "555 1234567"};←js On can be parsed by JavaScript.  -document.getElementById ("Jname"). innerhtml=Jsonobject.name +document.getElementById ("Jage"). innerhtml=Jsonobject.age -document.getElementById ("Jstreet"). innerhtml=Jsonobject.street +document.getElementById ("Jphone"). innerhtml=Jsonobject.phone A</script> at  -</body> -
code Example 2:
12<body>34<p>5First Name: <span id= "fname"></span><br/>6Last Name: <span id= "lname"></span><br/>7</p>8<script type= "Text/javascript" >9 var txt = ' {' Employees ': [' +10 ' {' firstName ': ' Bill ', ' lastName ': ' Gates '}, ' +11 ' {' firstName ': ' George ', ' lastName ': ' Bush "}, ' +12 ' {" FirstName ":" Thomas "," LastName ":" Carter "}]} '; -  - var obj = eval ("(" + txt + ")"); the ←javascript program can use the built-in eval () function to generate native JavaScript objects with JSON data.  the  -document.getElementById ("fname"). innerhtml=obj.employees[1]. firstName  -document.getElementById ("lname"). innerhtml=obj.employees[1]. lastName  -</script> +</body> -
"Memory Point"

 
  
    
  
   
       
    
    • The file type of the JSON file is ". JSON"
      •  
    
    • The MIME type of JSON text is "Application/json"
      •  
    
    • The JavaScript program can use the built-in eval () function to generate native JavaScript objects with JSON data.
      •  
    
    • JSON can be parsed by JavaScript.
      •  
    
    • One of the most common uses of JSON is to read the JSON data (as a file or as a HttpRequest) from the Web server, convert the JSON data to a JavaScript object, and then use that data in the Web page.
      •  
    
    • Using the JSON parser to convert JSON to JavaScript objects is a safer practice. The JSON parser only recognizes JSON text and does not compile the script.
      •  
    
    • Native JSON support is included in newer browsers and the latest ECMAScript (JavaScript) standards.
      •  
   
    
 
  
Like XML
 
  
    
  
   
       
    
    • JSON is plain text
      •  
    
    • JSON has a hierarchy (values exist in values)
      •  
    
    • JSON can be parsed with JavaScript
      •  
    
    • JSON data can be transmitted using AJAX
      •  
   
    
 
  
Compared to the difference between XML
 
  
    
  
   
       
    
    • No end tag
      •  
    
    • Ability to parse using the built-in JavaScript eval() method
      •  
    
    • Working with arrays
      •  
    
    • Do not use reserved words
      •  
   
    
 
  
How do I finish learning JSON in 1 hours?

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