javascript - json 变量未定义

Question

我在名为 json/img_desc.json 的文件夹中有一个 json 文件

这是 json 文件

{ "theimages":[
  {
    "number":1,
    "title":"Joy Toy teddy bear",
    "description":"In etc etc"
  } etc etc

然后我使用此代码尝试获取第一个值。

 $.getJSON('json/img_desc.json', function(theimages) {
    console.log(img_desc.theimages.number[0]);
});

错误

上面是这么说的

[15:06:46.951] ReferenceError: img_desc is not defined @ file:///[removed for privacy]/js/puzzle.js:246

Answer 1

应该是

$.getJSON('json/img_desc.json', function (theimages) {
    console.log(theimages.theimages[0].number);

    //if you want to loop
    $.each(theimages.theimages, function (idx, obj) {
        console.log(obj.number)
    })
});