fix typo ’transaction‘

src/js/blockchain.js

@@ -4,7 +4,7 @@ var Block = require("./block");
 const genesis_block = require("./genesis_block.json");
 var Node = require("./network");
 var Account = require("./account");
-var Transcation = require("./transcation");
+var Transaction = require("./transaction");
 var Msg = require("./message");
 var MessageType = require("./message").type;
 var Promise = require("bluebird");
@@ -158,7 +158,7 @@ class BlockChain {
         let tx = block.transcations;
         for (var i = 0; i < tx.length; ++i) {
             // todo (check tx is exist and valid)
-            if (!Transcation.verify(tx[i]))
+            if (!Transaction.verify(tx[i]))
                 return false;
         }
         return true;
@@ -192,7 +192,7 @@ class BlockChain {
                     this.broadcast(msg);
                 }
                 break;
-            case MessageType.Transcation:
+            case MessageType.Transaction:
                 {
                     // check if exist(pending or in chain) verify, store(into pending) and broadcast
                 }

src/js/message.js

@@ -3,7 +3,7 @@
 var MessageType = {
     Connection: 0,
     Block: 1,
-    Transcation: 2,
+    Transaction: 2,
     PrePrepare: 3,
     Prepare: 4,
     Commit: 5

src/js/transaction.js

@@ -1,6 +1,6 @@
 'use strict';
 
-class Transcation {
+class Transaction {
     constructor() {
 
     }
@@ -10,4 +10,4 @@ class Transcation {
     }
 }
 
-module.exports = Transcation;
+module.exports = Transaction;