blocks|key|93555|text|你可以做到|type|unstyled|depth|inlineStyleRanges|entityRanges|data|93556|var+arr+=+_.values(obj);|code-block|syntax|javascript|93557|有关文档，请参阅here.|offset|length|93558|entityMap|0|LINK|mutability|MUTABLE|url|http://lodash.com/docs#values^0|0|0|8|5|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

<p>You can do</p>

<pre><code>var arr = _.values(obj);
</code></pre>

<p>For documentation see <a href="http://lodash.com/docs#values" rel="noreferrer">here.</a></p>


blocks|key|93560|text|_.toArray(obj);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|93561|输出为：|unstyled|93562|[
++{
++++"name":+"Ivan",
++++"id":+12,
++++"friends":+[
++++++2,
++++++44,
++++++12
++++],
++++"works":+{
++++++"books":+[],
++++++"films":+[]
++++}
++},
++{
++++"name":+"John",
++++"id":+22,
++++"friends":+[
++++++5,
++++++31,
++++++55
++++],
++++"works":+{
++++++"books":+[],
++++++"films":+[]
++++}
++}
]"|93563|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|L|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|I|3|-4|5|F|7|N|8|@]|9|@]|A|$]]]|J|$]]

<pre><code>_.toArray(obj);
</code></pre>

<p>Outputs as:</p>

<pre><code>[
  {
    "name": "Ivan",
    "id": 12,
    "friends": [
      2,
      44,
      12
    ],
    "works": {
      "books": [],
      "films": []
    }
  },
  {
    "name": "John",
    "id": 22,
    "friends": [
      5,
      31,
      55
    ],
    "works": {
      "books": [],
      "films": []
    }
  }
]"
</code></pre>


blocks|key|93598|text|如果希望将键(在本例中为id)保留为每个数组项的属性，您可以这样做|type|unstyled|depth|inlineStyleRanges|entityRanges|data|93599|const+arr+=+_(obj)+//wrap+object+so+that+you+can+chain+lodash+methods
++++++++++++.mapValues((value,+id)=>_.merge({},+value,+{id}))+//attach+id+to+object
++++++++++++.values()+//get+the+values+of+the+result
++++++++++++.value()+//unwrap+array+of+objects|code-block|syntax|javascript|93600|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

<p>If you want the key (id in this case) to be a preserved as a property of each array item you can do</p>

<pre><code>const arr = _(obj) //wrap object so that you can chain lodash methods
            .mapValues((value, id)=&gt;_.merge({}, value, {id})) //attach id to object
            .values() //get the values of the result
            .value() //unwrap array of objects
</code></pre>


blocks|key|93614|text|如果有人感兴趣的话，这是一个现代的原生解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|93615|const+arr+=+Object.keys(obj).map(key+=>+({+key,+value:+obj[key]+}));|code-block|syntax|javascript|93616|或(非IE)：|93617|const+arr+=+Object.entries(obj).map(([key,+value])+=>+({+key,+value+}));|93618|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<p>A modern native solution if anyone is interested:</p>

<pre><code>const arr = Object.keys(obj).map(key =&gt; ({ key, value: obj[key] }));
</code></pre>

<p>or (not IE):</p>

<pre><code>const arr = Object.entries(obj).map(([key, value]) =&gt; ({ key, value }));
</code></pre>


blocks|key|93642|text|2017年更新：Object.values，lodash+values和toArray做到了。为了保留密钥，map和spread+operator发挥得很好：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|93643|​|93644|//+import+{+toArray,+map+}+from+'lodash'
const+map+=+_.map

const+input+=+{
++key:+{
++++value:+'value'
++}
}

const+output+=+map(input,+(value,+key)+=>+({
++key,
++...value
}))

console.log(output)
//+>>+[{key:+'key',+value:+'value'}])|code-block|syntax|javascript|93645|<script+src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.js"></script>|93646|93647|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_objects/Object/values|1|https://lodash.com/docs#values|2|https://lodash.com/docs#toArray|3|https://lodash.com/docs#map|4|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator^0|8|D|0|T|6|1|10|7|2|1I|3|3|1M|F|4|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|13|8|@]|9|@$A|14|B|15|1|16]|$A|17|B|18|1|19]|$A|1A|B|1B|1|1C]|$A|1D|B|1E|1|1F]|$A|1G|B|1H|1|1I]]|C|$]]|$1|D|3|E|5|6|7|1J|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|1K|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|H|7|1L|8|@]|9|@]|C|$I|J]]|$1|M|3|E|5|6|7|1M|8|@]|9|@]|C|$]]|$1|N|3|-4|5|6|7|1N|8|@]|9|@]|C|$]]]|O|$P|$5|Q|R|S|C|$T|U]]|V|$5|Q|R|S|C|$T|W]]|X|$5|Q|R|S|C|$T|Y]]|Z|$5|Q|R|S|C|$T|10]]|11|$5|Q|R|S|C|$T|12]]]]

<p>2017 update: <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_objects/Object/values" rel="noreferrer">Object.values</a>, lodash <a href="https://lodash.com/docs#values" rel="noreferrer">values</a> and <a href="https://lodash.com/docs#toArray" rel="noreferrer">toArray</a> do it. And to preserve keys <a href="https://lodash.com/docs#map" rel="noreferrer">map</a> and <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator" rel="noreferrer">spread operator</a> play nice:</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="true">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>// import { toArray, map } from 'lodash'
const map = _.map

const input = {
  key: {
    value: 'value'
  }
}

const output = map(input, (value, key) =&gt; ({
  key,
  ...value
}))

console.log(output)
// &gt;&gt; [{key: 'key', value: 'value'}])</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.js"&gt;&lt;/script&gt;</code></pre>
</div>
</div>
</p>


blocks|key|93677|text|对我来说，这是可行的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|93678|_.map(_.toPairs(data),+d+=>+_.fromPairs([d]));|code-block|syntax|javascript|93679|它会转身|93680|{"a":"b",+"c":"d",+"e":"f"}+|93681|转到|93682|[{"a":"b"},+{"c":"d"},+{"e":"f"}]|93683|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

<p>For me, this worked:</p>

<pre><code>_.map(_.toPairs(data), d =&gt; _.fromPairs([d]));
</code></pre>

<p>It turns </p>

<pre><code>{"a":"b", "c":"d", "e":"f"} 
</code></pre>

<p>into</p>

<pre><code>[{"a":"b"}, {"c":"d"}, {"e":"f"}]
</code></pre>


blocks|key|93699|text|如果您想要对象到数组的一些自定义映射(如原始Array.prototype.map)，您可以只使用_.forEach：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|93700|let+myObject+=+{
++key1:+"value1",
++key2:+"value2",
++//+...
};

let+myNewArray+=+[];

_.forEach(myObject,+(value,+key)+=>+{
++myNewArray.push({
++++someNewKey:+key,
++++someNewValue:+value.toUpperCase()+//+just+an+example+of+new+value+based+on+original+value
++});
});

//+myNewArray+=>+[{+someNewKey:+key1,+someNewValue:+'VALUE1'+},+...+];|code-block|syntax|javascript|93701|请参阅_.forEach+https://lodash.com/docs/#forEach的lodash文档|93702|entityMap|0|LINK|mutability|MUTABLE|url|https://lodash.com/docs/#forEach^0|1D|9|0|0|1A|6|D|W|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]]|E|$]]|$1|M|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

<p>If you want some custom mapping (like original Array.prototype.map) of Object into an Array, you can just use <code>_.forEach</code>: <br></p>

<pre><code>let myObject = {
  key1: "value1",
  key2: "value2",
  // ...
};

let myNewArray = [];

_.forEach(myObject, (value, key) =&gt; {
  myNewArray.push({
    someNewKey: key,
    someNewValue: value.toUpperCase() // just an example of new value based on original value
  });
});

// myNewArray =&gt; [{ someNewKey: key1, someNewValue: 'VALUE1' }, ... ];
</code></pre>

<p>See <code>lodash</code> doc of _.forEach <a href="https://lodash.com/docs/#forEach" rel="nofollow noreferrer">https://lodash.com/docs/#forEach</a> </p>


blocks|key|93725|text|对象到数组|type|unstyled|depth|inlineStyleRanges|entityRanges|data|93726|在所有的答案中，我认为这个答案是最好的：|93727|let+arr+=+Object.entries(obj).map(([key,+val])+=>+({+key,+...val+}))|code-block|syntax|javascript|93728|这会转化为：|93729|{
++a:+{+p:+1,+q:+2},
++b:+{+p:+3,+q:+4}
}|93730|至：|93731|[
++{+key:+'a',+p:+1,+q:+2+},+
++{+key:+'b',+p:+3,+q:+4+}
]|93732|数组到对象|93733|要向后转换，请执行以下操作：|93734|let+obj+=+arr.reduce((obj,+{+key,+...val+})+=>+{+obj[key]+=+{+...val+};+return+obj;+},+{})|93735|要将关键字保留在值中，请重新转换：|93736|let+obj+=+arr.reduce((obj,+{+key,+...val+})+=>+{+obj[key]+=+{+key,+...val+};+return+obj;+},+{})|93737|将给予：|93738|{
++a:+{+key:+'a',+p:+1,+q:+2+},
++b:+{+key:+'b',+p:+3,+q:+4+}
}|93739|对于最后一个示例，您还可以使用lodash、_.keyBy(arr,+'key')或_.keyBy(arr,+i+=>+i.key)。|offset|length|style|CODE|93740|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|M|J|16|O|0^^$0|@$1|2|3|4|5|6|7|1C|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1D|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1E|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|1F|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|1G|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|1H|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|1I|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|1J|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1K|8|@]|9|@]|A|$]]|$1|U|3|V|5|F|7|1L|8|@]|9|@]|A|$G|H]]|$1|W|3|X|5|6|7|1M|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|F|7|1N|8|@]|9|@]|A|$G|H]]|$1|10|3|11|5|6|7|1O|8|@]|9|@]|A|$]]|$1|12|3|13|5|F|7|1P|8|@]|9|@]|A|$G|H]]|$1|14|3|15|5|6|7|1Q|8|@$16|1R|17|1S|18|19]|$16|1T|17|1U|18|19]]|9|@]|A|$]]|$1|1A|3|-4|5|6|7|1V|8|@]|9|@]|A|$]]]|1B|$]]

<h3>Object to Array</h3>

<p>Of all the answers I think this one is the best:</p>

<pre class="lang-js prettyprint-override"><code>let arr = Object.entries(obj).map(([key, val]) =&gt; ({ key, ...val }))
</code></pre>

<p>that transforms:</p>

<pre class="lang-js prettyprint-override"><code>{
  a: { p: 1, q: 2},
  b: { p: 3, q: 4}
}
</code></pre>

<p>to:</p>

<pre class="lang-js prettyprint-override"><code>[
  { key: 'a', p: 1, q: 2 }, 
  { key: 'b', p: 3, q: 4 }
]
</code></pre>

<h3>Array to Object</h3>

<p>To transform back:</p>

<pre class="lang-js prettyprint-override"><code>let obj = arr.reduce((obj, { key, ...val }) =&gt; { obj[key] = { ...val }; return obj; }, {})
</code></pre>

<p>To transform back keeping the key in the value:</p>

<pre class="lang-js prettyprint-override"><code>let obj = arr.reduce((obj, { key, ...val }) =&gt; { obj[key] = { key, ...val }; return obj; }, {})
</code></pre>

<p>Will give:</p>

<pre class="lang-js prettyprint-override"><code>{
  a: { key: 'a', p: 1, q: 2 },
  b: { key: 'b', p: 3, q: 4 }
}
</code></pre>

<p>For the last example you can also use lodash <code>_.keyBy(arr, 'key')</code> or <code>_.keyBy(arr, i =&gt; i.key)</code>.</p>


<p>How can I transform a big <code>object</code> to <code>array</code> with lodash?</p>

<pre><code>var obj = {
  22: {name:"John", id:22, friends:[5,31,55], works:{books:[], films:[],}
  12: {name:"Ivan", id:12, friends:[2,44,12], works:{books:[], films:[],}
}

// transform to 
var arr = [{name:"John", id:22...},{name:"Ivan", id:12...}]
</code></pre>


transform object to array with lodash

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。

页面排版不美观，阅读体验差。

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如何使用lodash将大的object转换为array？var obj = {  22: {name:"John", id:22, friends:[5,31,55], works:{books:[], films:[],}  12: {name:"Ivan", id:12, friends:[2,44,12], wo...

问使用lodash将对象转换为数组
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