Valid data does not pass the test.

Challenge Modify Array Data With Indexes has an issue. User Agent is: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36. Please describe how to reproduce this issue, and include links to screenshots if possible.

My code:

// Example
var ourArray = [1,2,3];
ourArray[1] = 3; // ourArray now equals [1,3,3].

// Setup
var myArray = [1,2,3];

// Only change code below this line.
myArray [0] = 3;

While myArray [0] is valid js syntax this code doesn’t pass the tests because the test for use of brackets doesn’t allow that space.

recommend /myArray\s+[0]\s+=.*/ as a better test that allows for the space but still doesn’t allow for the reassignment of the array

[l-tong]

I will give it a try on fixing it as a first-timer.

[karuppiah7890]

OK. Somehow I guessed that I have to run the

npm run only-once

command again, even though it says “only-once”. Since the output for the first time said some files were parse. Even this time the output said some files were parsed. And the file names were related to the names of the JSON files in the seed/challenges/ folder.

Is it like the JSON files are parsed and put in the mongodb server ? And the site shows the data of the challenges from the database server ?

EDIT 1: Looks like I need to learn more about MongoDB to get into the database and see stuff. I tried traversing into challenge db using show dbs and use xyz. But wasn’t able to see stuff.

EDIT 2: OK. I checked out properly on how to lookup data in MongoDB and found that all the data was getting store in it, inside freecodecamp DB, inside challenge collection. I basically did this

>show dbs
>use freecodecamp
>show collections
>db.challenge.find()
>db.challenge.find({"title": "Access Array Data with Indexes"})

So, looks like whenever I run npm run only-once command, the JSON files in /seed/challenges ( and may be some more folders too) folder will be parsed and put in the DB anew. Especially this is necessary when I change the JSON files.

So, what is actually happening when I run the npm run only-once command ? Can anyone explain ?