解析JSON對象獲取未定義

Question

我得到了響應JSON格式，但面臨的問題是如何解析它的IM下面是我的代碼

var jsonValue = JSON.stringify(response); 

警報jsonValue後，我得到

[ 
    ["vlue1", 18, "ram", "xmy"], 
    ["value2", 21, "abc", "xyz"] 
] 

如何用JavaScript解析它？

Answer 1

var obj = JSON.parse(response); 

You can see it explained here.

Here you can check if it is supported in your target browser.

Answer 2

字符串化（）

The JSON.stringify() method converts a value to JSON, optionally replacing values if a replacer function is specified, or optionally including only the specified properties if a replacer array is specified.

解析（）

The JSON.parse() method parses a string as JSON, optionally transforming the value produced by parsing.

Answer 3

嘗試這樣的事情

var data = [ 
    ["vlue1", 18, "ram", "xmy"], 
    ["value2", 21, "abc", "xyz"] 
]; 
for(var i = 0;i < data.length;i++){ 
    var tem_arr = data[i]; 
    for(var j = 0;j < tem_arr.length;j++){ 
     console.log(tem_arr[j]); 
    } 
} 

JSON.stringify變成一個對象的JSON文本並存儲JSON文本字符串。

JSON.parse將一串JSON文本轉換爲對象。

EDITED

var data = '[["vlue1", 18, "ram", "xmy"],["value2", 21, "abc", "xyz"]]'; 
data = JSON.parse(data) 
for(var i = 0;i < data.length;i++){ 
    var tem_arr = data[i]; 
    for(var j = 0;j < tem_arr.length;j++){ 
     console.log(tem_arr[j]); 
    } 
}