javascript jQuery 循环遍历 JSON 数组

jQuery loop through JSON array

提问by Adriaan

I have a json array which i fetch by a ajax call and would like to loop through it. The array outputs a category titel and some data records within that category. The array is as followed:

我有一个 json 数组，我通过 ajax 调用获取它并希望遍历它。该数组输出类别标题和该类别内的一些数据记录。数组如下：

{"Travel":[{"title":"Beautiful title 1"},{"title":"Beautiful title 2"},{"title":"Beautiful title 3"}],"Other":[{"title":"Beautiful title 1"}]}

The basic each function like so can't help me.

像这样的基本每个功能都帮不了我。

$.each(data, function(key, value) {
    console.log(value.title);
}

I want to be able to output it with the main category title and under that have the data records shown.

我希望能够使用主类别标题输出它，并在其下显示数据记录。

So for example i want it to look like this:

例如，我希望它看起来像这样：

Travel (3 results):

旅行（3 个结果）：

• Beautiful title 1
• Beautiful title 2
• Beautiful title 3
• List item

• 美丽的标题 1
• 美丽的标题 2
• 美丽的标题 3
• 项目清单

Other (1 results):

其他 (1 个结果):

• Beautiful title 1

• 美丽的标题 1

Any help would be greatly appreciated. Thank you.

任何帮助将不胜感激。谢谢你。

回答by Vigneswaran Marimuthu

var data = {"Travel":[{"title":"Beautiful title 1"},{"title":"Beautiful title 2"},{"title":"Beautiful title 3"}],"Other":[{"title":"Beautiful title 1"}]};

$.each(data, function (key, value) {
  $('body').append($('<div></div>').html(key + ' (' + value.length + ' results)'));
  var list = $('<ul></ul>');
  $('body').append(list);
  $.each(value, function (index, titleObj) {
    list.append('<li>' + titleObj.title + '</li>');
    
  });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>

回答by guest271314

Try

尝试

$.each(data, function(key, value) {
  $("<ul />", {
    "class": key.toLowerCase(),
    "html": key + " (" + value.length + " results)<br />"
  }).append($.map(value, function(title, i) {
    return $("<li />", {
      "html": Object.keys(title)[0] + ":" + title.title
    })[0].outerHTML
  })).appendTo("body");
});

var data = {
  "Travel": [{
    "title": "Beautiful title 1"
  }, {
    "title": "Beautiful title 2"
  }, {
    "title": "Beautiful title 3"
  }],
  "Other": [{
    "title": "Beautiful title 1"
  }] 
};

$.each(data, function(key, value) {
  $("<ul />", {
    "class": key.toLowerCase(),
    "html": key + " (" + value.length + " results)<br />"
  }).append($.map(value, function(title, i) {
    return $("<li />", {
      "html": Object.keys(title)[0] + ":" + title.title
    })[0].outerHTML
  })).appendTo("body");
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

回答by Shaunak D

You would need nested .each()as the array contains nested objects.

您需要嵌套，.each()因为数组包含嵌套对象。

$.each(data,function(i,object){
    console.log(i +'('+object.length+')')
    $.each(object, function (index, obj) {
        console.log(obj.title);
    });
});

Fiddle

小提琴

回答by Praveen Dabral

Actually you have a Travel key their

其实你有他们的旅行钥匙

So you can do it like :

所以你可以这样做：

$.each(data.Travel,function(key, value){
    console.log(value.title);
}