find the name of a json file in typescript

To find the name of a JSON file in TypeScript, you can use the Node.js fs (file system) module and the path module to read the directory where the JSON file is located, and then filter the files in that directory to only include files with the .json extension. Here's an example code snippet:

index.ts
import * as fs from 'fs';
import * as path from 'path';

const directoryPath = '/path/to/json/files';
fs.readdir(directoryPath, (err, files) => {
  if (err) {
    console.error('Error reading directory: ', err);
    return;
  }
  const jsonFiles = files.filter((file) => path.extname(file) === '.json');
  console.log('JSON file names: ', jsonFiles);
});
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This code reads the directoryPath directory and filters the files to only include those with a .json extension. It then logs the names of the JSON files to the console.

Note that this code assumes that you have the necessary permissions to read the directory and its files.