Got it working

index.js

@@ -11,41 +11,17 @@ module.exports = function namehash (inputName) {
   name = normalize(inputName)
 
   if (name) {
-
     const labels = name.split('.')
-    console.dir({ labels })
 
     for(var i = labels.length - 1; i >= 0; i--) {
-      console.log("BEFORE")
-      console.dir({ node, label:labels[i] })
       const labelSha = sha3(labels[i])
-      console.dir({ node, label:labels[i], labelSha })
+      node = sha3(new Buffer(node + labelSha, 'hex'))
-      node = sha3(node + labelSha)
-      console.log("AFTER")
-      console.dir({ node })
-    }
-
-    /*
-    const label = labels.shift()
-    const remainder = labels.join('.')
-
-    const remainderHash = namehash(remainder).substr(2)
-    const labelHash = sha3(label)
-    if (remainderHash.match(/^0+$/)) {
-      return '0x' + labelHash
     }
-    return '0x' + sha3(remainderHash + remainderHash)
-    */
-
   }
 
   return `0x${node}`
 }
 
-function concat (buffA, buffB) {
-
-}
-
 function normalize(name) {
   return name ? uts46.toUnicode(name, {useStd3ASCII: true, transitional: false}) : name
 }

test/index.js

@@ -19,23 +19,6 @@ test('empty param', (t) => {
   t.equal(output, expected)
 })
 
-/*
-test('TLD eth', (t) => {
-  t.plan(1)
-  const input = 'eth'
-  const expected = '0x4f5b812789fc606be1b3b16908db13fc7a9adf7ca72641f84d75b47069d3d7f0'
-  const output = namehash(input)
-  t.equal(output, expected)
-})
-*/
-
-/*
- * Commented out because it turns out the EIP has incorrect specs:
- * https://github.com/ethereum/EIPs/issues/137#issuecomment-284918147
- *
- * The correct specs are here, but too sparse to use:
- * http://docs.ens.domains/en/latest/introduction.html#namehash
- */
 test('TLD eth', (t) => {
   t.plan(1)
   const input = 'eth'
@@ -51,3 +34,4 @@ test('foo.eth', (t) => {
   const output = namehash(input)
   t.equal(output, expected)
 })
+