In TypeScript, you can get the parent directory path using the path module from Node.js. The path module provides a variety of methods that can be used to work with file and directory paths in a platform-independent way.
Here's an example of how to get the parent directory path:
import * as path from 'path';
const filePath = '/home/user/myapp/index.js';
const parentDirPath = path.dirname(filePath);
console.log(parentDirPath); // Output: /home/user/myapp
In the example above, we first import the path module and define a filePath variable that contains the path to a file (index.js in this case). We then use the path.dirname() method to get the parent directory path of the file and store it in the parentDirPath variable. Finally, we log the parent directory path to the console.
Another example:
import * as path from 'path';
const filePath = 'C:\\Users\\User\\Documents\\project\\index.js';
const parentDirPath = path.dirname(filePath);
console.log(parentDirPath); // Output: C:\Users\User\Documents\project
In this example, we use a Windows file path and get the parent directory path using the same path.dirname() method. The output will be the parent directory path in the same format as the input file path.