javascript - 添加对象数组以形成对象

Question

我有一个这样的 html 表单:

<form action="/create" method="POST">

    <input type="text" placeholder="title" name="title">
    <input type="text" placeholder="year" name="toYear">
    <input type="text" placeholder="genre" name="genre">
    <input type="text" placeholder="director" name="director">    
    <input type="url" placeholder="poster" name="poster">
    <textarea name="plot" placeholder="plot..." cols="30" rows="10"></textarea>            

    <div id="actors">
        <h5>Actors</h5>
        <button type="button" id="addActor">Add Actor</button>
    </div>

    <div id="ratings">
        <h5>Ratings</h5>
        <button type="button" id="addRating">Add Rating</button>
    </div>
<button type="submit">Add to Collection
</button>
</form>

下面是我的脚本:

document.getElementById('addRating').addEventListener('click', function () {

    var ratingsElem = document.getElementById('ratings');

    var sourceElem = document.createElement("input");
    sourceElem.setAttribute('type', 'text');
    sourceElem.setAttribute('placeholder', 'Source');
    sourceElem.setAttribute('name', 'ratingsSource');

    var valueElem = document.createElement("input");
    valueElem.setAttribute('type', 'text');
    valueElem.setAttribute('placeholder', 'value');
    valueElem.setAttribute('name', 'ratingsValue');


    ratingsElem.appendChild(sourceElem);
    ratingsElem.appendChild(valueElem);

})

document.getElementById('addActor').addEventListener('click', function () {

    var ActorsElem = document.getElementById('actors');

    var actorElem = document.createElement("input");
    actorElem.setAttribute('type', 'text');
    actorElem.setAttribute('placeholder', 'Name');
    actorElem.setAttribute('name', 'actors');

    ActorsElem.appendChild(actorElem);
});

提交时一切顺利，但我想将 Ratings 值变成这样的评级对象数组:

"Ratings": [
{
  "Source": "Internet Movie Database",
  "Value": "8.8/10"
},
{
  "Source": "Rotten Tomatoes",
  "Value": "91%"
},
{
  "Source": "Metacritic",
  "Value": "92/100"
}
  ]

并将其附加到发送到服务器的表单数据中。我怎样才能做到这一点？...................................................

Answer 1

var formData = JSON.stringify($("#myForm").serializeArray());

您可以稍后在 ajax 中使用它。或者，如果您不使用 ajax；把它放在隐藏的文本区域并传递给服务器。如果此数据通过普通格式数据作为 json 字符串传递，则您必须使用 json_decode 对其进行解码。然后，您将获得数组中的所有数据。

$.ajax({
  type: "POST",
  url: "serverUrl",
  data: formData,
  success: function(){},
  dataType: "json",
  contentType : "application/json"
});

引用:How to send a JSON object using html form data