how to use the chmodsync function from fs-extra in javascript

To set the file permissions in Node.js, you can use the chmodSync function from the fs module. However, the chmodSync function is asynchronous and it can be a bit cumbersome to use. Fortunately, the fs-extra module provides the chmodSync function which is a synchronous version of chmod.

Here's an example of how to use the chmodSync function from fs-extra in JavaScript:

const fs = require('fs-extra');

// Set the file permissions
fs.chmodSync('/path/to/file', 0o755);
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In this example, 0o755 is the octal value of the permissions. The first digit represents the owner's permissions, the second digit represents the group's permissions, and the third digit represents everyone else's permissions.

The available permission values are:

• 0o400 (read)
• 0o200 (write)
• 0o100 (execute)

So, 0o755 means that the owner has read, write, and execute permissions, and everyone else has only read and execute permissions.

Note that chmodSync can also be used to modify directories' permissions in the same way.

Make sure that you have appropriate permissions to perform the chmodSync operation on the file.