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/_stream_readable.js b/lib/_stream_readable.js
index 4e4fbd7813..da16420828 100644
--- a/lib/_stream_readable.js
+++ b/lib/_stream_readable.js
@@ -3,11 +3,11 @@
 module.exports = Readable;
 Readable.ReadableState = ReadableState;
 
-var EE = require('events').EventEmitter;
-var Stream = require('stream');
-var util = require('util');
+const EE = require('events').EventEmitter;
+const Stream = require('stream');
+const util = require('util');
+const debug = util.debuglog('stream');
 var StringDecoder;
-var debug = util.debuglog('stream');
 
 util.inherits(Readable, Stream);
 
@@ -189,7 +189,7 @@ Readable.prototype.setEncoding = function(enc) {
 };
 
 // Don't raise the hwm > 128MB
-var MAX_HWM = 0x800000;
+const MAX_HWM = 0x800000;
 function roundUpToNextPowerOf2(n) {
   if (n >= MAX_HWM) {
     n = MAX_HWM;
@@ -781,7 +781,7 @@ Readable.prototype.wrap = function(stream) {
   }
 
   // proxy certain important events.
-  var events = ['error', 'close', 'destroy', 'pause', 'resume'];
+  const events = ['error', 'close', 'destroy', 'pause', 'resume'];
   events.forEach(function(ev) {
     stream.on(ev, self.emit.bind(self, ev));
   });