Prevent Node.js require looking for node_modules in parent directories. Usefull for isolating your project against node_modules directories upward in the file hierarchy.

removeRequirePaths.js

// Put this on the top of your entry file or use Node's `-r` cli option

const { Module } = require("module");

const originalResolveLookupPaths = Module._resolveLookupPaths;

Module._resolveLookupPaths = function(request, parent) {
  const paths = originalResolveLookupPaths.call(Module, request, parent);
  if (request.startsWith(".")) return paths;

  // Remove all modules directories upward in the hierarchy from this
  // file's directory (non inclusive).
  const lastSearchPathIndex = paths.indexOf(`${__dirname}/node_modules`);
  return lastSearchPathIndex !== -1
    ? paths.slice(0, lastSearchPathIndex + 1)
    : paths;
};