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

To use the chmod function from the fs-extra library in Typescript, first install the library by running the following command in your terminal:

index.ts
npm install fs-extra
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Then, import the chmod function from the library and use it like this:

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

// Set the file/directory permissions to 755 (rwxr-xr-x)
fs.chmod('/path/to/file/or/directory', 0o755)
  .then(() => {
    console.log('File permissions changed successfully');
  })
  .catch((err) => {
    console.error(err);
  });
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Here, 0o755 is the octal representation of the permissions rwxr-xr-x, which gives the owner read, write, and execute permissions and everyone else read and execute permissions. You can replace 755 with any other valid permission value you want to set.

Note that the chmod function returns a Promise which resolves when the permissions have been successfully changed and rejects when there is an error. So, you need to use .then and .catch to handle the success and error cases respectively.

Also, make sure you have the necessary permissions to change the permissions of the file/directory you are trying to modify. Otherwise, you will get a permission denied error.