On the syntax and format of JSON in JS _javascript tips

The JSON text format is syntactically the same as the code that creates the JavaScript object.

Because of this similarity, JavaScript programs can use the built-in eval () function to generate native JavaScript objects with JSON data without a parser.

JSON syntax rules:

Data in name/value pair
Data separated by commas
Curly Braces Save Objects
square brackets to save an array

JSON Name/value pair Introduction

"Name": "Zhang Fei",
"age": 23

The value of the JSON can be:

Number (integer or floating-point numbers)
String (to be included in double quotes)
Logical value (TRUE or FALSE)
Array (in square brackets)
Object (in curly braces)

The JSON-to-JavaScript object method is:

eval("(" + str + ")");

code example:

JSON and JavaScript Object conversions

　JSON goto JavaScript Object

JSON to Object 1
function Jsontoobject (str) {return
 eval ("+ str +"));
}

JSON-Object 2 
function Strtojson (str) {
 var json = (new function ("return" + str)) ();
 return JSON;
}

JSON to object 3 jquery tool function
$.parsejson ()

　JavaScript objects turn to JSON

JavaScript object turns JSON
function Objecttojson (o) {
 var arr = [];
 var FMT = function (s) {
  if (typeof s = = ' object ' && s!= null) return json2str (s);
  Return/^ (String|number) $/.test (typeof s)? "" + S + "'": S;
 }
 for (var i in O) arr.push ("' + i +" ': "+ FMT (O[i]));
 Return ' {' + arr.join (', ') + '} ';
}

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