lrlna / repl-playground

troubleshooting multiline paste

repl-playground

To start REPL with mongosh evaluation, use index.js. You need to have mongodb installed and mongod running:

npm install && node index.js

There are two other files. Regular evaluation repl is setup in default-repl.js and produces no problems.

custom-repl sets up a 'custom' evaluator, which is actually just the regular evaluate that's wrapped in async/await and is resolved in a customEval function that's similar to how mongosh evaluation happens. This does not need to have mongodb installed.

Here is a sure way to test differences in output between custom and default evaluations.

function to setup ahead of time:

function input (x) { console.log(x); return x  }

Then paste a few calls:

input(1)
input(2)
input(3)
input(4)
input(5)