Update check for Node version

README.md

@@ -29,13 +29,13 @@ Installing
 
     ./pokemon-showdown
 
-(Requires Node.js 6+)
+(Requires Node.js 8+)
 
 
 Detailed installation instructions
 ------------------------------------------------------------------------
 
-Pokémon Showdown requires you to have [Node.js][6] installed, 6.x or later.
+Pokémon Showdown requires you to have [Node.js][6] installed, 8.x or later (7.7 or later can work, but you might as well be on the latest stable).
 
 Next, obtain a copy of Pokémon Showdown. If you're reading this outside of GitHub, you've probably already done this. If you're reading this in GitHub, there's a "Clone or download" button near the top right (it's green). I recommend the "Open in Desktop" method - you need to install GitHub Desktop which is more work than "Download ZIP", but it makes it much easier to update in the long run (it lets you use the `/updateserver` command).
 

app.js

@@ -44,11 +44,18 @@
 
 const FS = require('./fs');
 
-// Check for dependencies
+// Check for version and dependencies
+try {
+	// I've gotten enough reports by people who don't use the launch
+	// script that this is worth repeating here
+	eval('{ let a = async () => {}; }');
+} catch (e) {
+	throw new Error("We require Node.js version 8 or later; you're using " + process.version);
+}
 try {
 	require.resolve('sockjs');
 } catch (e) {
-	throw new Error('Dependencies are unmet; run node pokemon-showdown before launching Pokemon Showdown again.');
+	throw new Error("Dependencies are unmet; run node pokemon-showdown before launching Pokemon Showdown again.");
 }
 
 /*********************************************************

package.json

@@ -15,7 +15,7 @@
     "ofe": "0.5.1"
   },
   "engines": {
-    "node": ">=6.0.0"
+    "node": ">=7.7.0"
   },
   "main": "app.js",
   "scripts": {

pokemon-showdown

@@ -5,12 +5,12 @@ const child_process = require('child_process');
 const fs = require('fs');
 const path = require('path');
 
-// Make sure we're Node 6+
+// Make sure we're Node 8+
 
 try {
-	eval('{ let [a] = [1]; }');
+	eval('{ let a = async () => {}; }');
 } catch (e) {
-	console.log("We require Node.js v6 or later; you're using " + process.version);
+	console.log("We require Node.js version 8 or later; you're using " + process.version);
 	process.exit(1);
 }