将JS对象转换为对象数组

huangapple
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英文:

convert JS object to Object Array

问题

I have an array of objects as below:

  1. [
  2.   {
  3.     Instance: 'USM 1',
  4.     performance: '<DanPac_A>.<Daniel.DanOPCHub>.<A Session.Perfomance>',
  5.     agc: '<DanPac_A>.<Daniel.DanOPCHub>.<A Session.AGC>',
  6.     snr: '<DanPac_A>.<Daniel.DanOPCHub>.<A Session.SNR>',
  7.     sos: '<DanPac_A>.<Daniel.DanOPCHub>.<A Session.SNR>',
  8.     flowvel: '<DanPac_A>.<Daniel.DanOPCHub>.<A Session.SNR>',
  9.   },
  10. ];

I need to take Instance out as a key and use its value as a property instead.

Expected output:

  1. [
  2.   {
  3.     'USM 1': [
  4.       {
  5.         performance: 'value',
  6.         agc: 'value',
  7.         // ...
  8.       },
  9.     ],
  10.   },
  11. ];

Any idea how to take it out?

英文:

I have an array of objects as below

  1. [
  2.   {
  3.     Instance: &#39;USM 1&#39;,
  4.     performance:
  5.       &#39;&amp;lt;DanPac_A&amp;gt;.&amp;lt;Daniel.DanOPCHub&amp;gt;.&amp;lt;A Session.Perfomance&amp;gt;&#39;,
  6.     agc: &#39;&amp;lt;DanPac_A&amp;gt;.&amp;lt;Daniel.DanOPCHub&amp;gt;.&amp;lt;A Session.AGC&amp;gt;&#39;,
  7.     snr: &#39;&amp;lt;DanPac_A&amp;gt;.&amp;lt;Daniel.DanOPCHub&amp;gt;.&amp;lt;A Session.SNR&amp;gt;&#39;,
  8.     sos: &#39;&amp;lt;DanPac_A&amp;gt;.&amp;lt;Daniel.DanOPCHub&amp;gt;.&amp;lt;A Session.SNR&amp;gt;&#39;,
  9.     flowvel: &#39;&amp;lt;DanPac_A&amp;gt;.&amp;lt;Daniel.DanOPCHub&amp;gt;.&amp;lt;A Session.SNR&amp;gt;&#39;,
  10.   },
  11. ];

I need to take Instance out as a key and use its value as a property instead.

expected output

  1. [
  2.   {
  3.     &#39;USM 1&#39;: [
  4.       {
  5.         performance: &#39;value&#39;,
  6.         agc: &#39;value&#39;,
  7.         // ...
  8.       },
  9.     ],
  10.   },
  11. ];

any idea how to take it out??

答案1

得分: 0

你可以使用 Array::map() 方法：

  1. const arr = [{
  2.     "Instance": "USM 1",
  3.     "performance": "&lt;DanPac_A&gt;.&lt;Daniel.DanOPCHub&gt;.&lt;A Session.Perfomance&gt;",
  4.     "agc": "&lt;DanPac_A&gt;.&lt;Daniel.DanOPCHub&gt;.&lt;A Session.AGC&gt;",
  5.     "snr": "&lt;DanPac_A&gt;.&lt;Daniel.DanOPCHub&gt;.&lt;A Session.SNR&gt;",
  6.     "sos": "&lt;DanPac_A&gt;.&lt;Daniel.DanOPCHub&gt;.&lt;A Session.SNR&gt;",
  7.     "flowvel": "&lt;DanPac_A&gt;.&lt;Daniel.DanOPCHub&gt;.&lt;A Session.SNR&gt;"
  8. }];
  10. const mapped = arr.map(({Instance, ...item}) => ({[Instance]: [item]}));
  12. console.log(mapped);
英文:

You could use Array::map():

<!-- begin snippet: js hide: false console: true babel: false -->

<!-- language: lang-js -->

  1. const arr = [{
  2.     &quot;Instance&quot;: &quot;USM 1&quot;,
  3.     &quot;performance&quot;: &quot;&amp;lt;DanPac_A&amp;gt;.&amp;lt;Daniel.DanOPCHub&amp;gt;.&amp;lt;A Session.Perfomance&amp;gt;&quot;,
  4.     &quot;agc&quot;: &quot;&amp;lt;DanPac_A&amp;gt;.&amp;lt;Daniel.DanOPCHub&amp;gt;.&amp;lt;A Session.AGC&amp;gt;&quot;,
  5.     &quot;snr&quot;: &quot;&amp;lt;DanPac_A&amp;gt;.&amp;lt;Daniel.DanOPCHub&amp;gt;.&amp;lt;A Session.SNR&amp;gt;&quot;,
  6.     &quot;sos&quot;: &quot;&amp;lt;DanPac_A&amp;gt;.&amp;lt;Daniel.DanOPCHub&amp;gt;.&amp;lt;A Session.SNR&amp;gt;&quot;,
  7.     &quot;flowvel&quot;: &quot;&amp;lt;DanPac_A&amp;gt;.&amp;lt;Daniel.DanOPCHub&amp;gt;.&amp;lt;A Session.SNR&amp;gt;&quot;
  8. }];
  10. const mapped = arr.map(({Instance, ...item}) =&gt; ({[Instance]: [item]}));
  11.     
  12. console.log(mapped);

<!-- end snippet -->

huangapple
  • 本文由 发表于 2023年6月8日 06:37:17
  • 转载请务必保留本文链接：https://go.coder-hub.com/76427504.html
  • arrays
  • javascript
  • javascript-objects
  • json
  • object
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