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How to convert JavaScript array to CSV?

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Sometimes, we want to convert JavaScript array to CSV.

In this article, we’ll look at how to convert JavaScript array to CSV.

How to convert JavaScript array to CSV?

To convert JavaScript array to CSV, we use array and object methods.

For instance, we write

const data = [
  { title: "Book title 1", author: "Name1 Surname1" },
  { title: "Book title 2", author: "Name2 Surname2" },
  { title: "Book title 3", author: "Name3 Surname3" },
  { title: "Book title 4", author: "Name4 Surname4" },
];

const csv = data
  .map((d) => {
    return Object.values(d).join(",");
  })
  .join("\n")

to call data.map with a callback that gets the values from each object in data with Object.values.

Then we call join to join the values into a string with each entry separated by a comma.

Then we call join again to combine the strings into a CSV with each line separated by a new line character.

Conclusion

To convert JavaScript array to CSV, we use array and object methods.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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