usePreferredUnit usePreferredUnit.js

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  import { useTheme } from '../useTheme/useTheme';
import { useContext } from 'react';
import { ThemeContext } from 'styled-components';
 
export const usePreferredUnit = (value) => {
  const { rootVal, preferredUnit } = useContext(ThemeContext);
 
  if (preferredUnit !== 'rem') {
    return `${value}px`;
  }
 
  return `${(value / rootVal)}rem`;
};
 
export default usePreferredUnit;