lda-c | C implementation of variational EM | Topic Modeling library

i developed a MS Access desktop database app a decade ago that im attempting to rebuild using node, electron and mysql now that im a recovering windows user.

ive started by recreating the simplest form in the app after importing the necessary parts of the db: https://imgur.com/a/oRfcsXw.

the problem is in the datacontrol's operation (bottom left), specifically when using the new record button (">+"). while it sometimes properly increments the record number ("336" in the screen shot), other times it does not. when it sticks, continuing to add records eventually makes it suddenly catch up before it eventually sticks again. debugging indicates the cause being that rows.length in newRecord() is not being reported correctly.

it seems safe to assume this is related to my frustratingly inexplicable inability to fully comprehend asynchronous execution, callbacks, promises and async/await, despite being moderately intelligent and banging my head against countless articles on the subject over the past four days. i guess i just need to see an example of how to do it as it applies to my situation before im able to better grasp the concept. so feel free to ignore the great many flaws in this noobie's code below, some of which he is aware, and im sure a great many of which he is not, and just focus on how i might get an accurate rows.length.