Last time in "single export" we used `module.exports` to export a single
function. There is another form called simply `exports` that you can attach
properties to. This is a less common way of exporting functionality but is
still useful in some circumstances, such a protocol with `.parse()` and
`.stringify()` functions which are the inverses of each other.

For this level, call `prompt()` twice from your entry file to obtain 2
values: the first is a string you should parse into an array of objects and
the second value is an array you should serialize back into a string.

In a second file `./ndjson.js`, export a `parse()` and `stringify()`
function by assigning properties onto the `exports` object.

`.parse(str)` will get a newline-separated string `str` of json stringified
json and should use JSON.parse() to parse each line of json into an array
of results

`.stringify(rows)` will get an array of `rows` and should return a
newline-separated string of records with JSON.stringify()

Compile your program with `browserify` starting at your entry file
and pipe the bundle into `$ADVENTURE_COMMAND verify` like this:

  browserify main.js | $ADVENTURE_COMMAND verify

If you just want to run your solution with the test input without verifying
it you can do:

  browserify main.js | $ADVENTURE_COMMAND run

Last time in "single export" we used `module.exports` to export a single
function. There is another form called simply `exports` that you can attach
properties to. This is a less common way of exporting functionality but is
still useful in some circumstances, such a protocol with `.parse()` and
`.stringify()` functions which are the inverses of each other.

For this level, call `prompt()` twice from your entry file to obtain 2
values: the first is a string you should parse into an array of objects and
the second value is an array you should serialize back into a string. Print
the return values with `console.log()`.

In a second file `./ndjson.js`, export a `parse()` and `stringify()`
function by assigning properties onto the `exports` object.

`.parse(str)` will get a newline-separated string `str` of json stringified
json and should use JSON.parse() to parse each line of json into an array
of results

`.stringify(rows)` will get an array of `rows` and should return a
newline-separated string of records with JSON.stringify()

Compile your program with `browserify` starting at your entry file
and pipe the bundle into `$ADVENTURE_COMMAND verify` like this:

  browserify main.js | $ADVENTURE_COMMAND verify

If you just want to run your solution with the test input without verifying
it you can do:

  browserify main.js | $ADVENTURE_COMMAND run

Clarify that console.log must be used
Clarify that console.log must be used

This tripped me up for a minute. console.log isn’t mentioned anywhere.
