strings that contain url are better to be stored into const

try to keep one pattern of quotes, single or double or backward. Usually, if you have just a string use the single quotes ''

you can separate html from css. Create a module css and [ut all the styling there ;) when you use everything together it is not possible to change in future when the project grows and it looks dirty, not readable.

try not to compare with ==, use triple one ;)

I believe you can replace this loop with the map method :)

try to use more descriptive and meaningful names. It's not clear what you mean by stringReturn, which string? what return? why xd?

please check if you can replace this loop just by that line:
const stringReturn = counter.map((key, index) => (${index} состав: ${key} штук | ));

Угу, вот только counter = {}

check please the spelling of the filename ;)

classBlok looks weird tbh , doesn't it?

please try mot to shorten the names, not to be afraid of using long names. They are descriptive and takes less time to understand what's going on :)

if you don't use the parameter reject , then you can add underscore before in order to avoid eslint error/warn .
And if you do not change the variable in code use const instead

Here should be instructions how to run your application in Readme

use const if you don't assign a new value ;)

the content of this loop can be written just in one line with the help of the ternary operation:
for (let i = 0; i < usersSettings.usersSS.length; i++) { return (isYourSostav = usersSettings.usersSS[i] == sostav ? true : false); }

and also below состав неопределен is it should be necessary the phrase with space before??

please change the name to currentDate for example :)

you can reverse this logic of checking :)
check for existence ;)
const dataForLS = JSON.parse(localStorage.getItem(sostav${params.sostav}));
and then if (dataForLS !==null)

you can use such short names for large functions or classes, where another context gives you the entire impression, but here it's tricky to understand

if you use the same names of the props and values , then you don't need to write it twice ;)
let params = { saveScanStat, sostav, docId, a40,

Я собственно так и сделал недавно, правда в другой ветке

and what if stringValueCounter is equal to 2 ?
I recommend you to change if-else implementation here, it's confusing and long

the name :)

you should apply VS formatter here. It's unreadable at all

why do you assign an empty object?
you can check the value to exist and proceed

Я уже не помню, оно без этого не работало XD

you need to extract all the css to the css module :)

ok. I will be try

you can use ternary operators here

i don't like the name XD

if you use comments, it means you use bad names ;)

too long, i believe you can reduce it with the help of methods of js and ternary operators ;)

if (!usersSettings)