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

To use lchmodsync function from the fs-extra library in TypeScript, you can follow the steps below:

1. Install @types/fs-extra package that provides TypeScript typings for fs-extra:

   index.ts
   npm install @types/fs-extra --save-dev
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2. Import fs and fs-extra modules in your TypeScript file:

   index.ts
   import * as fs from 'fs';
   import * as fse from 'fs-extra';
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3. Now you can use the lchmodsync function from fse module:

   index.ts
   const filePath = '/path/to/file';
   const mode = 0o755;
   fse.lchmodSync(filePath, mode);
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   Note that lchmodsync function is a synchronous function that changes the permission bits of the file at the given filePath using the chown system function, and sets the file permission bits to the given mode.

4. You can also use the PathLike type from the fs module to define the filePath parameter:

   index.ts
   import * as path from 'path';
   
   const filePath = path.resolve('/path/to/file');
   const mode = 0o755;
   fse.lchmodSync(filePath, mode);
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   The path.resolve() function resolves the given filePath to an absolute path.

That's it! Now you know how to use lchmodsync function from fs-extra library in TypeScript.