Lot of example directory structure refactoring. (0.39.9).

examples/basics/builtins_conversions.fun

@@ -0,0 +1,56 @@
+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Copyright 2025 Johannes Findeisen <you@hanez.org>
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ */
+
+/*
+ * Built-in Type Conversions
+ *
+ * Shows how FunScript handles:
+ * - Implicit type conversions (numeric, string)
+ * - Explicit casting operations
+ * - Conversion functions and operators
+ * - Handling of special cases in conversions
+ */
+
+// Conversions and length built-ins demo
+
+// len on array and string
+print(len([1, 2, 3]))          // -> 3
+print(len("hello"))            // -> 5
+
+// to_number with various string inputs
+print(to_number("42"))         // -> 42
+print(to_number("   -7  "))    // -> -7
+print(to_number("12a"))        // non-numeric suffix -> 0
+print(to_number(""))           // empty -> 0
+print(to_number("  "))         // spaces -> 0
+
+// to_string on numbers and arrays
+print(to_string(42))           // -> "42" (printed as 42)
+
+arr = [1, 2]
+s = to_string(arr)             // -> "[array n=2]"
+print(s)
+
+// combine to_string with concatenation
+print("val=" + to_string(99))  // -> "val=99"
+
+/* Expected output:
+3
+5
+42
+-7
+0
+0
+0
+42
+[array n=2]
+val=99
+*/