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Can not get values of an array from an object

I tried to get values from an array from an object but it doesn't work. Can someone help me.

Here is the JSON parse:

  let userContent = null;
  try {
    userContent = JSON.parse(entity.contactform_content);
  } catch (e) {
    userContent = String(userContent);
  }

Return:

"contactform_id": "118",
"contactform_content": 
"{\"display_name\":\"Peter\",\"user_email\":\"peter@gmail.com\",\"user_nation\":\"be\",
\"category\":[{\"name\":\"Chinese Astrology\",\"value\":\"Chinese Astrology\"},{\"name\":\"Karmic Astrology\",\"value\":\"Karmic Astrology\"},{\"name\":\"Horoscopes\",\"value\":\"Horoscopes\"}],
\"available_time\":\"4 hours\",
\"time_slot\":\"2 hours\"}",   
}

My attempt to get category value:

<TextField
autoComplete="off"
label="Category"
value={userContent.category}
/>

它不显示类别值

Try this:

 <TextField autoComplete="off" label="Category" value={userContent.category.map(x => x.name)} />

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