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

To use the fstat function from the fs-extra library in TypeScript, you need to first install the library using npm.

npm install fs-extra
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Once installed, you can import the library and use the fstat function as follows:

index.ts
import * as fs from 'fs-extra';

async function getFileStats(filePath: string) {
  try {
    const stats = await fs.fstat(filePath);
    console.log(`File size: ${stats.size} bytes`);
  } catch (err) {
    console.error(`Error getting file stats: ${err.message}`);
  }
}
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In the above code, we import the fs-extra library and define an async function getFileStats that takes a filePath parameter. Within the function, we call the fstat method on the fs object with the filePath parameter to get the stats of the file. The method returns a Stats object that contains various properties of the file, such as size, mode, owner, and group.

We then log the size of the file to the console. If there was an error getting the file stats, we log the error message to the console.

Note that the fstat method is asynchronous and returns a promise, so we need to use the await keyword to wait for the result of the method call.