1 files changed, 14 insertions, 13 deletions
diff --git a/ts/thinking-about-unions/left-pad.ts b/ts/thinking-about-unions/left-pad.ts
index e75e38d..95f6d51 100644
--- a/ts/thinking-about-unions/left-pad.ts
+++ b/ts/thinking-about-unions/left-pad.ts
@@ -1,9 +1,9 @@
-/* 
+/*
 
 A stupidly simple example of unions.
 
 Unions can be used to describe a type that is actually several different types.
-Here, the Padding type is a union of either a number or a string. 
+Here, the Padding type is a union of either a number or a string.
 Then, leftPad uses the union type so that it can accept either sort of type.
 
 */
@@ -11,16 +11,17 @@ Then, leftPad uses the union type so that it can accept either sort of type.
 type Padding = number | string;
 
 const leftPad = (value: string, padding: Padding) => {
-    if (typeof padding === 'number') {
-        return Array(padding + 1).join(' ') + value; // 0 indexing is for computers, this function is for people.
-    }
-    if (typeof padding === 'string') {
-        return padding + value;
-    }
-    throw new Error(`Expected number or string, got '${padding}'.`);
-}
+  switch (typeof padding) {
+    case "number":
+      return Array(padding + 1).join(" ") + value; // 0 indexing is for computers, this function is for people.
+    case "string":
+      return padding + value;
+    default:
+      throw new Error(`Expected number or string, got '${padding}'.`);
+  }
+};
 
-const marioMsg = 'It is I, Mario!';
+const marioMsg = "It is I, Mario!";
 console.log(leftPad(marioMsg, 4));
-console.log(leftPad(marioMsg, "****"));
-console.log(leftPad(marioMsg, true));
\ No newline at end of file
+console.log(leftPad(marioMsg, "*** "));
+// console.log(leftPad(marioMsg, true));