Improve examples

Author: tshemsedinov

JavaScript/bank.js

@@ -7,16 +7,16 @@ class BankAccount {
   }
 }
 
-const operations = {
-  Create: (command, bank) => {
+const OPERATIONS = {
+  create: (command, bank) => {
     const account = bank.find(command.account);
     if (!account) bank.createAccount(command.account);
   },
-  Withdraw: (command, bank) => {
+  withdraw: (command, bank) => {
     const account = bank.find(command.account);
     account.balance -= command.amount;
   },
-  Income: (command, bank) => {
+  income: (command, bank) => {
     const account = bank.find(command.account);
     account.balance += command.amount;
   },
@@ -37,7 +37,7 @@ class Bank {
   }
 
   execute(command) {
-    const operation = operations[command.operation];
+    const operation = OPERATIONS[command.operation];
     operation(command, this);
     console.dir(command);
   }

JavaScript/client.js

@@ -27,8 +27,8 @@ console.table(res1);
 const marcusBalance1 = readApi1.getAccount(marcus);
 console.dir({ marcusBalance1 });
 
-const res2 = readApi2.select({ account: pius, operation: 'Income' });
+const res2 = readApi2.select({ account: pius, operation: 'income' });
 console.table(res2);
 
-const res3 = readApi3.select({ operation: 'Withdraw' });
+const res3 = readApi3.select({ operation: 'withdraw' });
 console.table(res3);

JavaScript/writer.js

@@ -18,16 +18,17 @@ class BankWrite {
   }
 
   createAccount(account) {
-    const operation = 'Create';
+    const operation = 'create';
     const command = new AccountCommand(account, operation);
     this.commands.push(command);
     this.eventBus.emit('command', command);
     this.bank.execute(command);
   }
 
-  operation(account, amount) {
-    const operation = amount < 0 ? 'Withdraw' : 'Income';
-    const command = new AccountCommand(account, operation, Math.abs(amount));
+  operation(account, value) {
+    const operation = value < 0 ? 'withdraw' : 'income';
+    const amount = Math.abs(value);
+    const command = new AccountCommand(account, operation, amount);
     this.commands.push(command);
     this.eventBus.emit('command', command);
     this.bank.execute(command);