use [].reverse over prototype

src/block.js

@@ -70,7 +70,7 @@ Block.prototype.getHash = function () {
 }
 
 Block.prototype.getId = function () {
-  return Array.prototype.reverse.call(this.getHash()).toString('hex')
+  return [].reverse.call(this.getHash()).toString('hex')
 }
 
 Block.prototype.getUTCDate = function () {

src/transaction.js

@@ -247,7 +247,7 @@ Transaction.prototype.getHash = function () {
 
 Transaction.prototype.getId = function () {
   // transaction hash's are displayed in reverse order
-  return Array.prototype.reverse.call(this.getHash()).toString('hex')
+  return [].reverse.call(this.getHash()).toString('hex')
 }
 
 Transaction.prototype.toBuffer = function () {

src/transaction_builder.js

@@ -172,8 +172,7 @@ TransactionBuilder.prototype.addInput = function (txHash, vout, sequence, prevOu
   // is it a hex string?
   if (typeof txHash === 'string') {
     // transaction hashs's are displayed in reverse order, un-reverse it
-    txHash = new Buffer(txHash, 'hex')
-    Array.prototype.reverse.call(txHash)
+    txHash = [].reverse.call(new Buffer(txHash, 'hex'))
 
   // is it a Transaction object?
   } else if (txHash instanceof Transaction) {

test/bitcoin.core.js

@@ -150,7 +150,7 @@ describe('Bitcoin-core', function () {
           var input = inputs[i]
 
           // reverse because test data is reversed
-          var prevOutHash = Array.prototype.reverse.call(new Buffer(input[0], 'hex'))
+          var prevOutHash = [].reverse.call(new Buffer(input[0], 'hex'))
           var prevOutIndex = input[1]
 
           assert.deepEqual(txIn.hash, prevOutHash)
@@ -203,7 +203,7 @@ describe('Bitcoin-core', function () {
       var hashType = f[3]
 
       // reverse because test data is reversed
-      var expectedHash = Array.prototype.reverse.call(new Buffer(f[4], 'hex'))
+      var expectedHash = [].reverse.call(new Buffer(f[4], 'hex'))
 
       var hashTypes = []
       if ((hashType & 0x1f) === bitcoin.Transaction.SIGHASH_NONE) hashTypes.push('SIGHASH_NONE')

test/integration/crypto.js

@@ -134,7 +134,7 @@ describe('bitcoinjs-lib (crypto)', function () {
 
         assert(bitcoin.script.isPubKeyHashInput(scriptChunks), 'Expected pubKeyHash script')
 
-        var prevOutTxId = Array.prototype.reverse.call(new Buffer(transaction.ins[input.vout].hash)).toString('hex')
+        var prevOutTxId = [].reverse.call(new Buffer(transaction.ins[input.vout].hash)).toString('hex')
         var prevVout = transaction.ins[input.vout].index
 
         tasks.push(function (callback) {

test/transaction_builder.js

@@ -91,7 +91,7 @@ describe('TransactionBuilder', function () {
         var tx = new Transaction()
 
         f.inputs.forEach(function (input) {
-          var txHash = Array.prototype.reverse.call(new Buffer(input.txId, 'hex'))
+          var txHash = [].reverse.call(new Buffer(input.txId, 'hex'))
 
           tx.addInput(txHash, input.vout, undefined, bscript.fromASM(input.scriptSig))
         })