let currentDir: 'ltr' | 'rtl' | 'auto' = 'auto' function hasDocument() { return typeof document !== 'undefined' } export function getDocumentDir() { if (!hasDocument()) { return currentDir } const direction = typeof document.dir !== 'undefined' ? document.dir : document.getElementsByTagName('html')[0].getAttribute('dir') return direction } export function setDocumentDir(dir: 'ltr' | 'rtl' | 'auto') { if (!hasDocument()) { currentDir = dir return } const html = document.getElementsByTagName('html')[0] html.setAttribute('dir', dir) }