let the js runtime run on the environment locale by default

1 files changed, 7 insertions, 1 deletions

diff --git a/src/gleam_stdlib.mjs b/src/gleam_stdlib.mjs
index cdbb91a..0a3aef2 100644
--- a/src/gleam_stdlib.mjs
+++ b/src/gleam_stdlib.mjs
@@ -94,8 +94,14 @@ export function string_length(string) {
 }
 
 function graphemes_iterator(string) {
+  let env_locale = () => {
+    if (typeof navigator.language !== "undefined") {
+      return navigator.language;
+    }
+    return Intl.DateTimeFormat().resolvedOptions().locale;
+  };
   if (Intl && Intl.Segmenter) {
-    return new Intl.Segmenter("en-gb").segment(string)[Symbol.iterator]();
+    return new Intl.Segmenter(env_locale).segment(string)[Symbol.iterator]();
   }
 }