1 files changed, 16 insertions, 0 deletions
diff --git a/packages/taler-util/src/helpers.ts b/packages/taler-util/src/helpers.ts
index 7d84d434e..d4c3c86b5 100644
--- a/packages/taler-util/src/helpers.ts
+++ b/packages/taler-util/src/helpers.ts
@@ -121,3 +121,19 @@ export function j2s(x: any): string {
 export function notEmpty<T>(value: T | null | undefined): value is T {
   return value !== null && value !== undefined;
 }
+
+/**
+ * Safe function to stringify errors.
+ */
+export function stringifyError(x: any): string {
+  if (typeof x === "undefined") {
+    return "<thrown undefined>";
+  }
+  if (x === null) {
+    return `<thrown null>`;
+  }
+  if (typeof x === "object") {
+    return x.toString();
+  }
+  return `<thrown ${typeof x}>`;
+}