js中json物件和字串的轉換
阿新 • • 發佈:2018-11-21
1.JSON.parse() : 字串–>json物件
var str = '{"name":"huangxiaojian","age":"23"}'//單引號寫在{}外,每個屬性名都必須用雙引號,否則會丟擲異常。
JSON.parse(str)
結果:
Object
age: "23"
name: "huangxiaojian"
__proto__: Object
2.JSON.stringify() : json物件–>字串
var a = {a:1,b:2}
JSON.stringify(a)
結果:
"{"a":1,"b":2}"
例如:
<!DOCTYPE html> <html> <head> <meta charset='UTF-8'> <title></title> </head> <body> </body> <script src="jquery.js"></script> <script type="text/javascript"> console.log("字串"+"--->"+"json物件"); var str1 = '{"name":"huangxiaojian","age":"23"}';//單引號寫在{}外,每個屬性名都必須用雙引號,否則會丟擲異常。 obj1=JSON.parse(str1); console.log(str1+"--->"); console.log(obj1); console.log("json物件"+"--->"+"字串"); var obj2 = {a:1,b:2}; str2 = JSON.stringify(obj2); console.log(obj2); console.log('--->'+str2); console.log("陣列"+"--->"+"字串"); var array = ["1","2"]; str3 = JSON.stringify(array); console.log(array); console.log('--->'+str3); </script> </html>