find the name of a csv file in javascript

To find the name of a CSV file in Javascript, you can use the File API to obtain information about a file selected through a file input element. The following code snippet demonstrates how to obtain the name of a selected CSV file:

index.tsx
const fileInput = document.getElementById('fileInput'); // obtain file input element
const file = fileInput.files[0]; // obtain selected file object
const fileName = file.name; // obtain name of selected file
console.log(fileName); // print name of selected file
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Once you have obtained the name of the CSV file, you can use it for parsing the CSV content using a CSV parsing library such as Papa Parse or d3-dsv.