1 files changed, 6 insertions, 4 deletions
diff --git a/runtime/js/41_prompt.js b/runtime/js/41_prompt.js
index cb088dafa..e941461de 100644
--- a/runtime/js/41_prompt.js
+++ b/runtime/js/41_prompt.js
@@ -2,9 +2,11 @@
 "use strict";
 ((window) => {
   const { stdin } = window.__bootstrap.files;
+  const { ArrayPrototypePush, StringPrototypeCharCodeAt, Uint8Array } =
+    window.__bootstrap.primordials;
   const { isatty } = window.__bootstrap.tty;
-  const LF = "\n".charCodeAt(0);
-  const CR = "\r".charCodeAt(0);
+  const LF = StringPrototypeCharCodeAt("\n", 0);
+  const CR = StringPrototypeCharCodeAt("\r", 0);
   const core = window.Deno.core;
 
   function alert(message = "Alert") {
@@ -59,7 +61,7 @@
         if (c[0] === LF) {
           break;
         }
-        buf.push(CR);
+        ArrayPrototypePush(buf, CR);
         if (n === null || n === 0) {
           break;
         }
@@ -67,7 +69,7 @@
       if (c[0] === LF) {
         break;
       }
-      buf.push(c[0]);
+      ArrayPrototypePush(buf, c[0]);
     }
     return core.decode(new Uint8Array(buf));
   }