From 042d4d5da9f9d8d6d14691c2127fb0abcc62f224 Mon Sep 17 00:00:00 2001
From: Alfonso Boza <alfonso@cloud.com>
Date: Wed, 8 Jan 2014 12:24:19 -0500
Subject: [PATCH] Buffer.isBuffer() returns explicit true/false, fixed for
non-Uint8Array buffer
---
index.js | 3 ++-
test/is-buffer.js | 10 ++++++++++
2 files changed, 12 insertions(+), 1 deletion(-)
create mode 100644 test/is-buffer.js
diff --git a/index.js b/index.js
index c77d54a..7124b1a 100644
--- a/index.js
+++ b/index.js
@@ -77,6 +77,7 @@ function Buffer (subject, encoding, noZero) {
// Fallback: Return this instance of Buffer
buf = this
buf.length = length
+ buf._isBuffer = true
}
var i
@@ -121,7 +122,7 @@ Buffer.isEncoding = function (encoding) {
}
Buffer.isBuffer = function (b) {
- return b && b._isBuffer
+ return (b != null && b._isBuffer) || false
}
Buffer.byteLength = function (str, encoding) {
diff --git a/test/is-buffer.js b/test/is-buffer.js
new file mode 100644
index 0000000..eec918f
--- /dev/null
+++ b/test/is-buffer.js
@@ -0,0 +1,10 @@
+var B = require('../index.js').Buffer
+var test = require('tape')
+
+test('Buffer.isBuffer', function (t) {
+ t.plan(3)
+ t.equal(B.isBuffer(new B('hey', 'utf8')), true)
+ t.equal(B.isBuffer(new B([1, 2, 3], 'utf8')), true)
+ t.equal(B.isBuffer('hey'), false)
+ t.end()
+})
--
2.34.1