从json文件返回的jQuery undefined [英] jQuery undefined returned from json file

问题描述

我正在尝试从json获取数组，但是当我尝试获取该数据时，它返回未定义"

I'm trying to get a array from a json but when I try to get that data it returns 'undefined'

在这里我要获取数据:

$.getJSON('saveGames/userID' + userID + '_SAVEALPHA.json', function(data) {
    console.log("Got data from saveJSON: " + data);
    var testVar = jQuery.parseJSON(data);
    console.log(testVar);
    playersPokemon = testVar.pokemon;
    console.log(testVar.pokemon);
    console.log("Players Pokemon: " + playersPokemon);
});

json文件(由PHP生成)

The json file (generated by PHP)

"[{\"userID\":\"1\",\"saveName\":\"h\",\"pokemon\":[\"Pikachu\",\"Charmander\"]}]"

我已经使用json验证程序来检查此文件，没关系.我正在尝试使用jQuery访问此json文件(以防您不知道).

I have used a json validator to check this file and it was OK. I am trying to access this json file with jQuery (in case you didn't know).

推荐答案

您的JSON字符串是对象的数组:[{...}]，pokemon属性在对象而不是数组中，因此要访问它，您需要testVar[0].pokemon

Your JSON string is an Array of an Object: [{...}], the pokemon property is in the Object not the Array so to access it you need testVar[0].pokemon

或者，如果可能的话，您可以从JSON文件中删除括号:

Or you can remove the brackets from the JSON file if that's possible:

"{\"userID\":\"1\",\"saveName\":\"h\",\"pokemon\":[\"Pikachu\",\"Charmander\"]}"

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