如何在nodejs中仅从CSVTOJSON中提取特定字段？

Question

我已经设法使用csvtojson npm包将CSV数据转换为JSON，并成功地在控制台中显示它。

csvtojson()
      .fromFile(csvFilePath)
      .then(jsonObj => {
        console.log(jsonObj);
      })


[
  {
    id: '1',
    title: 'Fjallraven - Foldsack No. 1 Backpack, Fits 15 Laptops',
    price: '109.95',
    description: 'Your perfect pack for everyday use and walks in the forest. Stash your laptop (up to 15 inches) in the padded sleeve, your everyday',
    category: 'men clothing',
    image: 'https://fakestoreapi.com/img/81fPKd-2AYL._AC_SL1500_.jpg'
  }
]

现在我想只登录id和title字段，我该怎么做呢？非常感谢提前，并非常感谢任何帮助。再次感谢

Answer 1

原因是:它是来自console.log值的对象数组。您可以这样做：

console.log(`Id: ${jsonObj[0].id}` and Title: ${jsonObj[0].title})

如果你有多个对象，你可以像这样遍历它：

​

const jsonObj = [{
    id: '1',
    title: 'Fjallraven - Foldsack No. 1 Backpack, Fits 15 Laptops',
    price: '109.95',
    description: 'Your perfect pack for everyday use and walks in the forest. Stash your laptop (up to 15 inches) in the padded sleeve, your everyday',
    category: 'men clothing',
    image: 'https://fakestoreapi.com/img/81fPKd-2AYL._AC_SL1500_.jpg'
  }, {
   id: '2',
    title: 'Fjallraven - Foldsack No. 1 Backpack, Fits 15 Laptops',
    price: '109.95',
    description: 'Your perfect pack for everyday use and walks in the forest. Stash your laptop (up to 15 inches) in the padded sleeve, your everyday',
    category: 'men clothing',
    image: 'https://fakestoreapi.com/img/81fPKd-2AYL._AC_SL1500_.jpg'
  }]

jsonObj.forEach(el => console.log(`Id: ${el.id}, title: ${el.title}`));

​