Data commit

Task/Nested-function/Objective-C/nested-function.m

@@ -0,0 +1,14 @@
+NSString *makeList(NSString *separator) {
+  __block int counter = 1;
+
+  NSString *(^makeItem)(NSString *) = ^(NSString *item) {
+    return [NSString stringWithFormat:@"%d%@%@\n", counter++, separator, item];
+  };
+
+  return [NSString stringWithFormat:@"%@%@%@", makeItem(@"first"), makeItem(@"second"), makeItem(@"third")];
+}
+
+int main() {
+  NSLog(@"%@", makeList(@". "));
+  return 0;
+}