lib: use const to define constants

This commit replaces a number of var statements throughout
the lib code with const statements.

PR-URL: https://github.com/iojs/io.js/pull/541
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

1 files changed, 10 insertions, 10 deletions

diff --git a/lib/module.js b/lib/module.js
index 0a4195cf7b..07c32b7eee 100644
--- a/lib/module.js
+++ b/lib/module.js
@@ -1,11 +1,11 @@
 'use strict';
 
-var NativeModule = require('native_module');
-var util = NativeModule.require('util');
-var runInThisContext = require('vm').runInThisContext;
-var runInNewContext = require('vm').runInNewContext;
-var assert = require('assert').ok;
-var fs = NativeModule.require('fs');
+const NativeModule = require('native_module');
+const util = NativeModule.require('util');
+const runInThisContext = require('vm').runInThisContext;
+const runInNewContext = require('vm').runInNewContext;
+const assert = require('assert').ok;
+const fs = NativeModule.require('fs');
 
 
 // If obj.hasOwnProperty has been overridden, then calling
@@ -42,13 +42,13 @@ Module.globalPaths = [];
 Module.wrapper = NativeModule.wrapper;
 Module.wrap = NativeModule.wrap;
 
-var path = NativeModule.require('path');
+const path = NativeModule.require('path');
 
 Module._debug = util.debuglog('module');
 
 
 // We use this alias for the preprocessor that filters it out
-var debug = Module._debug;
+const debug = Module._debug;
 
 
 // given a module name, and a list of paths to test, returns the first
@@ -70,7 +70,7 @@ function statPath(path) {
 }
 
 // check if the directory is a package.json dir
-var packageMainCache = {};
+const packageMainCache = {};
 
 function readPackage(requestPath) {
   if (hasOwnProperty(packageMainCache, requestPath)) {
@@ -490,7 +490,7 @@ Module.runMain = function() {
 };
 
 Module._initPaths = function() {
-  var isWindows = process.platform === 'win32';
+  const isWindows = process.platform === 'win32';
 
   if (isWindows) {
     var homeDir = process.env.USERPROFILE;