panini | Create sentences from a context-free grammar

I have two arrays (below) - I would like to modify the relatedCards array to not include the objects that are present in ownedCards array where values of relatedCards.series and ownedCards.series are the same and relatedCards.card_number and ownedCards.card_number are also the same.

I have an application that exports data from a Google Sheet to Mongo via a Mongo Realm HTTP Third Party Service; I'm not sure the Realm aspect is particularly relevant here but I may be wrong.

The export from Google Sheets sends an array of objects to Mongo ( example below), I want to update the documents where card_ids match, otherwise I want to create new documents. Initially I thought the way to do this would be via updatemany() but the examples where $set is used seem to have static values e.g.:

I have an array that has duplicate values which I want to turn into an object which contains only unique values, and uses the values in the array as both key and value.

In my example below I can create an object containing only unique values but I can't figure out how to get to an object that instead of

I have a requirement very similar to How to filter array by array of dynamic objects? however I need to filter on all values in my filter object. Please see my test below

I have a UL on my page which is acting as navigation (it works fine). I copied some jQuery code to keep the classes as they are on page reload (through location.reload()) but can't set it up as I don't know much javascript.

and my HTML code :

I have tried a handful of ways to try and get my models to populate from this Alamofire GET call. Not sure what I am missing. I will include the JSON that is coming over as "data" as well.

I have a React application which fetches data from an API and then presents various views on the data to users. I obviously don't want to keep going back to the API for this data so I store it in context and filter it as required.

I decide whether to make a call in componentDidUpdate as below:

I have my api_key in a ".env". I could be overthinking it. Here's my code as it currently stands, works without hiding the api_key. My syntax is incorrect when I pull from process.env.API_KEY.

I have a strange problem where my array filter works on all values within an array, except when the string value contains a mixture of numbers and letters. At least that's what I think is the issue.

Please see the two examples below. In the first case I am looking for records where card_id has a value cardid-1602670475144. In this case the filter array is always empty.