checklist.md

1. [CODE STYLE] - Don't use one-letter variable naming. (It could be confusing for another developer, who reads your code. Also, it would really hard to find this variable in the code editor using search)

BAD EXAMPLE:

onChange={(e) => setVariable(e.target.value)}

GOOD EXAMPLE:

onChange={(event) => setVariable(event.target.value)}

ALSO GOOD EXAMPLE:

onChange={(changeEvent) => setVariable(changeEvent.target.value)}

2. [CODE STYLE] - Don't repeat yourself. If you see that you copy/paste some block code, maybe, it's time to create a separate variable/function
3. [CODE KNOWLEDGE] - If you are using a non-mutating array method, you don't need to create a copy of the array

BAD EXAMPLE:

const filteredCats = [...cats].filter(cat => cat.age > 6);

GOOD EXAMPLE:

const filteredCats = cats.filter(cat => cat.age > 6);