如何在 React Native 中 return 数组中的逗号分隔字符串

Question

我有一个数组，我想提取特定列的值和 return 逗号分隔字符串中的项目。最好的方法是什么？对于下面的数组，我想获取 name 和 return "John,Tim,Mike" 的值感谢您的帮助

const users = [{
  "name": "John",
  "color": "blue",
},{
  "name": "Tim",
  "color": "red",
},{
  "name": "Mike",
  "color": "green",
}]

我想 return 逗号分隔字符串中的结果

str = "John,Tim,Mike"

再次感谢您的帮助。

Answer 1

您可以映射以提取名称，然后运行连接：

const users = [{
  "name": "John",
  "color": "blue",
},{
  "name": "Tim",
  "color": "red",
},{
  "name": "Mike",
  "color": "green",
}];

const commaSep = users.map(item => item.name).join(', ');

console.log(commaSep);

如何在 React Native 中 return 数组中的逗号分隔字符串

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