how can i do require() and dynamic require

i have the following code
```
const routersDir = path.resolve(path.join(__dirname, 'routers'))

const getRouters = () =>
fs.readdirSync(routersDir).forEach(file => {
if (path.extname(file) === '.js') {
const filePath = path.join(routersDir, file);
console.log("filePath", filePath)
const router = require(filePath)
console.log("router", router)
}
})
```

i want to load the module in a dir
but i got error
```
const router = require(filePath)
^
Error: Cannot find module "."
```

Start with the reported routersDir, fs.readdirSync, and dynamic require(filePath) example and reproduce the “Cannot find module” error. The issue names no repository file, test, or intended code change; done would require clarifying whether a bug fix, documentation update, or usage explanation is wanted.

Written by the indexing model from the issue text.