Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Run the example : https://github.com/jesus-seijas-sp/nlpjs-examples/tree/master/01.quickstart/06.javascriptpipelines
2. Input enter directly

Expected behavior
Should not raise error and get some hint.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [windows10]
• Browser [n/a]
• Package version [4.22]
• Node version [14.16]

Additional context
I wonder if it should check the input first then check the locales.length, otherwise in order to catch the exception I must try and catch in the pipelines.md like this: