vim can check syntax as you type using quickfix feature. To jump to next/previous error you need to write :cnext or :cprev in the command line.
unimpaired plugin has shortcuts [q and ]q for that.
The problem with this is that if there's only one error, :cn and :cp don't work, you need to use :cc. Which is an amazingly bad design decision in my opinion.
The following shortcuts solve this issue:
nnoremap } :<C-R>=len(getqflist())==1?"cc":"cn"<CR><CR>
nnoremap { :<C-R>=len(getqflist())==1?"cc":"cp"<CR><CR>
They map the '}' and '{' keys to jump to next/previous error even if there's only one error in a file.
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