使用 JavaScript 对象表示法访问 json 值
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/7202398/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Access json value using JavaScript object notation
提问by tnt-rox
I am unable to access a json value
我无法访问 json 值
{"phone": [
{
"@attributes": {
"type": "cell",
"ext": ""
}
}, "(123) 456 7890", {
"@attributes": {
"type": "work",
"ext": ""
}
}
]}
using the following JavaScript: psudo
使用以下 JavaScript： psudo
for each phone line ...
console.log(["@attributes"].type);
console.log(this);
console.log(["@attributes"].ext);
... end for
I expected the following output:
我期望以下输出：
cell
work (123) 456 7890
回答by diEcho
actually your json structure is not perfect, so here is the solution for your desired output
实际上你的json结构并不完美，所以这里是你想要的输出的解决方案
var json = {"phone": [
{
"@attributes": {
"type": "cell",
"ext": ""
}
}, "(123) 456 7890", {
"@attributes": {
"type": "work",
"ext": ""
}
}
]};
console.log(json['phone'][0]['@attributes'].type);
console.log('<br/>'+json['phone'][1]);
console.log('<br/>'+json['phone'][2]['@attributes'].type);
DEMO
演示
回答by Adeel
since phoneis an array, try this,
因为phone是一个数组，试试这个，
for(var i=0;i<phone.length;i++)
console.log(phone[i].["@attributes"].type);
Also surround your response with {, as it is currently an invalid json.
还要用 包围您的响应{，因为它目前是无效的 json。
回答by Dave Mackintosh
I'm pretty sure you can't start any object, associative array key or well anything with a non-alphanumerical character.
我很确定你不能启动任何对象、关联数组键或任何带有非字母数字字符的东西。
Also you have 3 calls to console and only two lines of expected output? What does console.log(this) output?
您也有 3 次调用控制台并且只有两行预期输出？console.log(this) 输出什么？
回答by muffir
I think your phonearray is quite messy because you have:
我认为你的phone数组很乱，因为你有：
phone[0] === {'@attributes':...}
phone[1] === '(123) 456 7890'
phone[2] === {'@attributes':...}
Is that what you realy wanted to have there?
那是你真正想要的吗？
