Change nodejs process current working directory

cwd_change_nodejs.js

const path = require('path');
// here after the dirname just make it to the root path of your choice
// all the path.resolve() will resolve from the process current directrory
// and chdir change that directory
const val = path.resolve(path.dirname(require.main.filename)+"/../..")
process.chdir(val);


/*
use case:
when use root index file is somewhere else and your testing file at another path,
sometimes this root path or application execution path causes app to fail reading files
at relative paths. So, we can change the directory of the process to root app path
and also test from testing directory
*/