Add hint on how to exit REPL (#5143)

Removes exit and help commands

1 files changed, 4 insertions, 21 deletions

diff --git a/cli/js/repl.ts b/cli/js/repl.ts
index 044713678..138b30c3e 100644
--- a/cli/js/repl.ts
+++ b/cli/js/repl.ts
@@ -1,6 +1,7 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 import { exit } from "./ops/os.ts";
 import { core } from "./core.ts";
+import { version } from "./version.ts";
 import { stringifyArgs } from "./web/console.ts";
 import { startRepl, readline } from "./ops/repl.ts";
 import { close } from "./ops/resources.ts";
@@ -13,26 +14,6 @@ function replError(...args: unknown[]): void {
   core.print(stringifyArgs(args) + "\n", true);
 }
 
-const helpMsg = [
-  "_       Get last evaluation result",
-  "_error  Get last thrown error",
-  "exit    Exit the REPL",
-  "help    Print this help message",
-].join("\n");
-
-const replCommands = {
-  exit: {
-    get(): void {
-      exit(0);
-    },
-  },
-  help: {
-    get(): string {
-      return helpMsg;
-    },
-  },
-};
-
 // Error messages that allow users to continue input
 // instead of throwing an error to REPL
 // ref: https://github.com/v8/v8/blob/master/src/message-template.h
@@ -83,7 +64,6 @@ function evaluate(code: string): boolean {
 // @internal
 export async function replLoop(): Promise<void> {
   const { console } = globalThis;
-  Object.defineProperties(globalThis, replCommands);
 
   const historyFile = "deno_history.txt";
   const rid = startRepl(historyFile);
@@ -126,6 +106,9 @@ export async function replLoop(): Promise<void> {
     },
   });
 
+  replLog(`Deno ${version.deno}`);
+  replLog("exit using ctrl+d or close()");
+
   while (true) {
     let code = "";
     // Top level read