1 files changed, 14 insertions, 0 deletions
diff --git a/deno/mail-relay/better-js.ts b/deno/mail-relay/better-js.ts
new file mode 100644
index 0000000..c424a6e
--- /dev/null
+++ b/deno/mail-relay/better-js.ts
@@ -0,0 +1,14 @@
+declare global {
+  interface Date {
+    toFileNameString(dateOnly?: boolean): string;
+  }
+}
+
+Object.defineProperty(Date.prototype, "toFileNameString", {
+  value: function (this: Date, dateOnly?: boolean) {
+    const str = this.toISOString();
+    return dateOnly === true
+      ? str.slice(0, str.indexOf("T"))
+      : str.replaceAll(/:|\./g, "-");
+  },
+});