find the size of a file in typescript

To find the size of a file in TypeScript, we can use the built-in Node.js File System module, which provides methods for working with the file system.

We can use the stat() method provided by the fs module to get file information, including file size in bytes. Here's an example:

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

const filePath = 'path/to/file';

try {
  const stats = fs.statSync(filePath);
  const fileSizeInBytes = stats.size;
  console.log(`The file size is ${fileSizeInBytes} bytes`);
} catch (error) {
  console.error(error);
}
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In this code snippet, we first import the fs module. We then declare the file path we want to get the size of. We use fs.statSync() to get the file information, including size. Finally, we log the file size in bytes to the console.

Note that fs.statSync() is a synchronous method, which means it will block the execution of any other code until it completes. If you prefer to work with asynchronous code, you can use the fs.stat() method instead, which takes a callback function that will be called with the file information once it's available.