1 files changed, 17 insertions, 0 deletions
diff --git a/src/ts-lang/util/string.ts b/src/ts-lang/util/string.ts
new file mode 100644
index 0000000..5772f40
--- /dev/null
+++ b/src/ts-lang/util/string.ts
@@ -0,0 +1,17 @@
+export type AddStrings<
+  Strings extends readonly string[],
+  Carry extends string = ""
+> = Strings extends [infer Head extends string, ...infer Tail extends string[]]
+  ? AddStrings<Tail, `${Carry}${Head}`>
+  : Carry;
+
+export type ToString<T, Carry extends string = ""> = T extends string | number
+  ? `${T}`
+  : T extends readonly any[]
+  ? T extends readonly [infer Head, ...infer Tail]
+    ? `${ToString<
+        Tail,
+        `${Carry extends "" ? "" : `${Carry}, `}${ToString<Head>}`
+      >}`
+    : `[${Carry}]`
+  : never;