blocks|key|11896|text|首先，值得注意的是，这与jQuery无关。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|11897|在任何情况下，一种简单的方法是使用Lodash中的_.get()函数。它做的就是你想要的。|offset|length|11898|这也是您自己编写的一段非常简单的代码，但是Lodash还有许多其他良好且经过良好测试的实用函数，因此值得您花时间熟悉它。下面是一个测试：|11899|​|11900|let+data+=+{
++++"all":+[
++++++++{
++++++++++++"image":{
++++++++++++++++"URL":"img/img1.jpeg",
++++++++++++++++"font":+"sfsdfsdf",
++++++++++++++++"color":+"sfsdfs"
++++++++++++},
++++++++++++"music":+{
++++++++++++++++"URL":"fsfsfd",
++++++++++++++++"time":+{
++++++++++++++++++++"start":"sfsdf",
++++++++++++++++++++"end":"qdqsd"
++++++++++++++++}
++++++++++++}
++++++++},
++++++++{
++++++++++++"image":{
++++++++++++++++"URL":"img/img2.jpeg",
++++++++++++++++"font":+"sfsdfsdf",
++++++++++++++++"color":+"sfsdfs"
++++++++++++},
++++++++++++"music":+{
++++++++++++++++"URL":"fsfsfd",
++++++++++++++++"time":+{
++++++++++++++++++++"start":"sfsdf",
++++++++++++++++++++"end":"qdqsd"
++++++++++++++++}
++++++++++++}
++++++++}
++++]
};

let+path+=+[+"all",+0,+"image",+"font"+];

let+value+=+_.get(+data,+path+);

console.log(+value+);|code-block|syntax|javascript|11901|<script+src="https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js"></script>|11902|11903|entityMap|0|LINK|mutability|MUTABLE|url|https://lodash.com/|1|https://lodash.com/docs/4.17.10#get^0|0|H|6|0|P|7|1|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|12|8|@]|9|@$D|13|E|14|1|15]|$D|16|E|17|1|18]]|A|$]]|$1|F|3|G|5|6|7|19|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|1A|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|1B|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|L|7|1C|8|@]|9|@]|A|$M|N]]|$1|Q|3|I|5|6|7|1D|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]]|S|$T|$5|U|V|W|A|$X|Y]]|Z|$5|U|V|W|A|$X|10]]]]

<p>First, it's worth noting that this has nothing to do with jQuery.</p>

<p>In any case, an easy way to do this is to use the <a href="https://lodash.com/docs/4.17.10#get" rel="nofollow noreferrer">_.get()</a> function from <a href="https://lodash.com/" rel="nofollow noreferrer">Lodash</a>. It does exactly what you are looking for.</p>

<p>This is also a pretty simple piece of code to write yourself, but Lodash has many other good and well-tested utility functions, so it's worth your while to get familiar with it. Here's a test:</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>let data = {
    "all": [
        {
            "image":{
                "URL":"img/img1.jpeg",
                "font": "sfsdfsdf",
                "color": "sfsdfs"
            },
            "music": {
                "URL":"fsfsfd",
                "time": {
                    "start":"sfsdf",
                    "end":"qdqsd"
                }
            }
        },
        {
            "image":{
                "URL":"img/img2.jpeg",
                "font": "sfsdfsdf",
                "color": "sfsdfs"
            },
            "music": {
                "URL":"fsfsfd",
                "time": {
                    "start":"sfsdf",
                    "end":"qdqsd"
                }
            }
        }
    ]
};

let path = [ "all", 0, "image", "font" ];

let value = _.get( data, path );

console.log( value );</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js"&gt;&lt;/script&gt;</code></pre>
</div>
</div>
</p>


<p>I have JSON data in array variable and I want to update some value in this array by string keys.
Here is what's my array look like:</p>

<pre><code>{
    "all": [
        {
            "image":{
                "URL":"img/img1.jpeg",
                "font": "sfsdfsdf",
                "color": "sfsdfs"
            },
            "music": {
                "URL":"fsfsfd",
                "time": {
                    "start":"sfsdf",
                    "end":"qdqsd"
                }
            }
        },
        {
            "image":{
                "URL":"img/img2.jpeg",
                "font": "sfsdfsdf",
                "color": "sfsdfs"
            },
            "music": {
                "URL":"fsfsfd",
                "time": {
                    "start":"sfsdf",
                    "end":"qdqsd"
                }
            }
        }
    ]
}
</code></pre>

<p>I have a second array with the path splitted of the key I want to update like this:</p>

<pre><code>var path = ["all", 0, "image", "font"]
</code></pre>

<p>For the moment I just loop <code>path</code> variable and search in my JSON data if the key exist.
But I have absolutly no idea how to update my JSON array without altering the schema of the array...</p>

<p>For example I want to replace <code>myArray[all][0][image][font]</code> value by "My Other Value"</p>

<p>The final goal is to have my JSON array updated and rewrite a JSON file.</p>

<p><strong>EDIT :</strong></p>

<p>I found the solution here : <a href="https://stackoverflow.com/questions/15092912/dynamically-updating-a-javascript-object-from-a-string-path">Dynamically updating a JavaScript object from a string path</a></p>


jQuery update JSON with string keys

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

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我在数组变量中有JSON数据，我想通过字符串键更新这个数组中的一些值。下面是我的数组：{    "all": [        {            "image":{                "URL":"img/img1.jpeg",                "font": "sfsdfsdf", ...

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