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, 6 insertions, 6 deletions

diff --git a/lib/crypto.js b/lib/crypto.js
index d08c29ca7..e27dad282 100644
--- a/lib/crypto.js
+++ b/lib/crypto.js
@@ -15,11 +15,11 @@ try {
   throw new Error('node.js not compiled with openssl crypto support.');
 }
 
-var constants = require('constants');
-var stream = require('stream');
-var util = require('util');
+const constants = require('constants');
+const stream = require('stream');
+const util = require('util');
 
-var DH_GENERATOR = 2;
+const DH_GENERATOR = 2;
 
 // This is here because many functions accepted binary strings without
 // any explicit encoding in older versions of node, and we don't want
@@ -36,8 +36,8 @@ function toBuf(str, encoding) {
 exports._toBuf = toBuf;
 
 
-var assert = require('assert');
-var StringDecoder = require('string_decoder').StringDecoder;
+const assert = require('assert');
+const StringDecoder = require('string_decoder').StringDecoder;
 
 
 function LazyTransform(options) {