CODE EXAMPLE FOR JAVASCRIPT

mui react outlined input helperText

const [accountId, setAccountId] = useState({ value: "", error: "" });

<FormControl variant="outlined">
  <InputLabel htmlFor="accountId">Account Id</InputLabel>
  <OutlinedInput
    value={accountId.value}
    onChange={(e) => setAccountId({value: e.target.value, error:""})}
    inputProps={{
      "aria-label": "Account Id",
    }}
    labelWidth={74}
    error={!!accountId.error}
  />
  {!!accountId.error && (
    <FormHelperText error id="accountId-error">
      {accountId.error}
    </FormHelperText>
  )}
</FormControl>