refactor

src/lib/utils.ts

@@ -49,6 +49,14 @@ export function isInViewport(el: HTMLElement) {
   )
 }
 
+export function isEmail(email: string) {
+  return /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)
+}
+
+export function isDevEnv() {
+  return process.env.NODE_ENV === 'development'
+}
+
 export function detectLanguage(text?: string): string | null {
   if (!text) {
     return null