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utils/string.ts

@@ -0,0 +1,9 @@
+export const removeDiacritics = (str: string) => {
+  // We normalize to the composed Unicode form, then we can remove the accents
+  return str.normalize("NFD").replace(/[\u0300-\u036f]/g, "");
+};
+
+export const normalizedContains = (haystack: string, needle: string) => {
+  const regExp = new RegExp(removeDiacritics(needle), "gi");
+  return regExp.test(removeDiacritics(haystack));
+};