add untrusted code example, swap example types to tutorial, make first sandbox example a runnable script

Author: thisisjofrank

examples/_data.ts

@@ -321,82 +321,82 @@ export const sidebar = [
       {
         title: "Spawn a subprocess",
         href: "/examples/sandbox_spawn_subprocess/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Serve a web framework",
         href: "/examples/sandbox_web_framework/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Provide SSH access to a sandbox",
         href: "/examples/sandbox_ssh_access/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Interactive JavaScript REPL",
         href: "/examples/sandbox_javascript_repl/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Provide a VSCode instance in a sandbox",
         href: "/examples/sandbox_vscode_instance/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Use template literals with variable interpolation",
         href: "/examples/sandbox_template_literals/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Error handling",
         href: "/examples/sandbox_error_handling/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Command cancellation",
         href: "/examples/sandbox_command_cancellation/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Streaming access string and binary output",
         href: "/examples/sandbox_access_output/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Set and get environment variables",
         href: "/examples/sandbox_environment_variables/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Stream output to a local file",
         href: "/examples/sandbox_stream_output/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Upload files and directories to a sandbox",
         href: "/examples/sandbox_upload_files/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Control sandbox timeout",
         href: "/examples/sandbox_timeout_control/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Configure sandbox memory",
         href: "/examples/sandbox_memory/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Add read-write volumes to your Sandbox",
         href: "/examples/volumes_tutorial/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Boot instantly with snapshots",
         href: "/examples/snapshots_tutorial/",
-        type: "example",
+        type: "tutorial",
       },
       {
         title: "Boot a Python environment with snapshots",
@@ -408,6 +408,11 @@ export const sidebar = [
         href: "/examples/snapshot_python_tutorial/",
         type: "tutorial",
       },
+      {
+        title: "Run AI generated code",
+        href: "/examples/sandbox_for_untrusted_code/",
+        type: "example",
+      },
     ],
   },
   {

examples/sandbox/evaluating_javascript.md

@@ -0,0 +1,28 @@
+/**
+ * @title Evaluating JavaScript
+ * @difficulty beginner
+ * @tags sandbox
+ * @run -A <url>
+ * @resource {https://docs.deno.com/sandbox/} Deno Deploy Sandbox
+ * @group Deno Deploy
+ *
+ * You can evaluate JavaScript code in a sandbox using the `eval` function.
+ *
+ * Calling `sandbox.deno.eval()` lets you run arbitrary JavaScript snippets
+ * directly inside the sandbox’s Deno runtime without writing files or shelling * out. This is useful when you want to prototype logic, run small
+ * computations, or  inspect the sandbox environment itself quickly. Use it for
+ * dynamic scripts or exploratory debugging where creating a full module would
+ * be overkill.
+ */
+
+// Import the Deno Sandbox SDK
+import { Sandbox } from "jsr:@deno/sandbox";
+// Create a sandbox
+await using sandbox = await Sandbox.create();
+// Run JS in the sandbox with eval
+const result = await sandbox.deno.eval(`
+  const a = 1;
+  const b = 2;
+  a + b;
+  `);
+console.log("result:", result);

examples/scripts/sandbox_evaluating_javascript.ts

@@ -11,6 +11,10 @@ export const TAGS = {
     title: "web",
     description: "Works in on the Web",
   },
+  sandbox: {
+    title: "sandbox",
+    description: "Uses Deno Deploy Sandbox",
+  },
 };
 
 export const DIFFICULTIES = {