Use same versions as another local package.json

copy-versions.js

const from = require('/Users/foldleft/Dev/foo/bar/package.json');
const to = require('./package.json');

Object.entries(from.dependencies).forEach(([name, version]) => {
  if (to.dependencies[name]) {
    to.dependencies[name] = version;
  }
});

Object.entries(from.devDependencies).forEach(([name, version]) => {
  if (to.devDependencies[name]) {
    to.devDependencies[name] = version;
  }
});

require('fs').writeFileSync('./package.json', JSON.stringify(to, null, 2));