how to use the dir function from the fs-extra library in typescript

To use the dir function from the fs-extra library in Typescript, you can follow these steps:

1. Install fs-extra and @types/fs-extra packages by running the following command in your terminal:

   index.ts
   npm install fs-extra @types/fs-extra
   37 chars
   2 lines

2. Import the fs-extra module at the top of your Typescript file:

   index.ts
   import * as fs from 'fs-extra';
   32 chars
   2 lines

3. Now you can use the fs.readdirSync method to read the contents of a directory synchronously:

   index.ts
   const files = fs.readdirSync('/path/to/directory');
   console.log(files); // prints an array of file names in the directory
   122 chars
   3 lines

4. If you want to use the fs.readdir method to read the contents of a directory asynchronously, you can use the following code:

   index.ts
   fs.readdir('/path/to/directory', (err: NodeJS.ErrnoException | null, files: string[]) => {
     if (err) {
       console.error(err.message);
     } else {
       console.log(files); // prints an array of file names in the directory
     }
   });
   229 chars
   8 lines

5. Finally, if you want to use the fs-extra library's dir function to find all files and subdirectories in a directory recursively, you can use the following code:

   index.ts
   fs.readdir('/path/to/directory', (err: NodeJS.ErrnoException | null, files: string[]) => {
     if (err) {
       console.error(err.message);
     } else {
       const filePaths = files.map((fileName) => {
         return path.join('/path/to/directory', fileName);
       });
   
       fs.dir(filePaths, (err: Error | null, dirs: string[], files: string[]) => {
         if (err) {
           console.error(err.message);
         } else {
           console.log(dirs); // prints an array of subdirectory names in the directory
           console.log(files); // prints an array of file names in the directory
         }
       });
     }
   });
   595 chars
   19 lines

   This code first reads the contents of the directory and creates an array of file paths, then pass it to the fs.dir function to find all files and subdirectories recursively. The dirs and files arrays contain the names of all subdirectories and files in the directory.