test: run js_unit_tests with `--unstable-*` flags (#25394)

1 files changed, 18 insertions, 17 deletions

diff --git a/runtime/js/99_main.js b/runtime/js/99_main.js
index 6dd75b415..d0171acd2 100644
--- a/runtime/js/99_main.js
+++ b/runtime/js/99_main.js
@@ -722,26 +722,27 @@ function bootstrapMainRuntime(runtimeOptions, warmup = false) {
       target,
     );
 
+    // TODO(bartlomieju): this is not ideal, but because we use `ObjectAssign`
+    // above any properties that are defined elsewhere using `Object.defineProperty`
+    // are lost.
+    let jupyterNs = undefined;
+    ObjectDefineProperty(finalDenoNs, "jupyter", {
+      get() {
+        if (jupyterNs) {
+          return jupyterNs;
+        }
+        throw new Error(
+          "Deno.jupyter is only available in `deno jupyter` subcommand.",
+        );
+      },
+      set(val) {
+        jupyterNs = val;
+      },
+    });
+
     // TODO(bartlomieju): deprecate --unstable
     if (unstableFlag) {
       ObjectAssign(finalDenoNs, denoNsUnstable);
-      // TODO(bartlomieju): this is not ideal, but because we use `ObjectAssign`
-      // above any properties that are defined elsewhere using `Object.defineProperty`
-      // are lost.
-      let jupyterNs = undefined;
-      ObjectDefineProperty(finalDenoNs, "jupyter", {
-        get() {
-          if (jupyterNs) {
-            return jupyterNs;
-          }
-          throw new Error(
-            "Deno.jupyter is only available in `deno jupyter` subcommand.",
-          );
-        },
-        set(val) {
-          jupyterNs = val;
-        },
-      });
     } else {
       for (let i = 0; i <= unstableFeatures.length; i++) {
         const id = unstableFeatures[i];