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

To use writeJsonSync from the fs-extra library in TypeScript, you first need to install the library by running npm install --save fs-extra.

Then, you can import the writeJsonSync function from the library and use it to write a JSON object to a file synchronously. Here's an example:

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

const jsonObject: Record<string, any> = {
  foo: 'bar',
  baz: [1, 2, 3],
};

try {
  fs.writeJsonSync('./my-file.json', jsonObject);
  console.log('JSON file written successfully!');
} catch (error) {
  console.error(`Error writing JSON file: ${error}`);
}
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In this example, we define a jsonObject variable that contains a simple JSON object. We then pass this object to fs.writeJsonSync, along with the path to the file where we want to write the JSON data ('./my-file.json' in this case).

If the write operation is successful, we log a success message to the console. If an error occurs, we log an error message instead.

Note that writeJsonSync will automatically stringify the JSON object before writing it to the file, so you don't need to do this yourself. Also, writeJsonSync will overwrite the file if it already exists, so be careful not to accidentally overwrite any important data!