JS foundation -- JSON

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One 、JSON What is it? ？

JSON Is a string , A string format often used to transmit data over the network

Two 、JSON Grammatical rules

• The data is the name / It's worth it

• Data is separated by commas

• Curly braces hold objects

• Square brackets hold arrays

    	querystring  Query string   "name=karen&pwd=abc123&count=20"
    	template  Template string  `<div style="">666</div>`
    	JSON  json character string  '{"name":"karen","its":["hello","h5"]}'
  

3、 ... and 、JSON Methods

1. Use JSON.parse() To convert this string to JavaScript object .
2. Use JSON.stringify() Convert it to a string .

         var re='{"name":"karen","it":["hello","h5",{"age":20}]}'
		 var obj={name:'ljy',age:22}
		 var re1=JSON.parse(re)
		 var obj1=JSON.stringify(obj)
		 console.log(re1,obj1)