Array usage examples

contracts/BadArrayUse.sol

@@ -5,10 +5,16 @@ import './PullPaymentCapable.sol';
 contract BadArrayUse is PullPaymentCapable {
   address[] employees;
 
-  function payroll() {
+  function payBonus() {
     for (var i = 0; i < employees.length; i++) {
+			address employee = employees[i];
+			uint bonus = calculateBonus(employee);
+    	asyncSend(employee, bonus);
+    }
+  }
 
+	function calculateBonus(address employee) returns (uint) {
+    // some expensive computation...
   }
 
 }
-}

contracts/GoodArrayUse.sol

@@ -1,11 +1,21 @@
+import './PullPaymentCapable.sol';
 
-contract GoodArrayUse {
+contract GoodArrayUse is PullPaymentCapable {
   address[] employees;
+  mapping(address => uint) bonuses;
 
-  function payroll() {
+  function payBonus() {
     for (uint i = 0; i < employees.length; i++) {
+			address employee = employees[i];
+			uint bonus = bonuses[employee];
+    	asyncSend(employee, bonus);
+    }
+  }
 
+	function calculateBonus(address employee) returns (uint) {
+    uint bonus = 0;
+    // some expensive computation...
+    bonuses[employee] = bonus;
   }
 
 }
-}

migrations/2_deploy_contracts.js

@@ -2,4 +2,5 @@ module.exports = function(deployer) {
   deployer.deploy(BadFailEarly);
   deployer.deploy(GoodFailEarly);
   deployer.deploy(PullPaymentBid);
+  deployer.deploy(BadArrayUse);
 };