update useTimer to have autoStart set to true by default

Author: amrlabib

demo/components/UseTimerDemo.js

@@ -13,7 +13,7 @@ export default function UseTimerDemo({ expiryTimestamp }: Object) {
     pause,
     resume,
     restart,
-  } = useTimer({ expiryTimestamp, autoStart: true, onExpire: () => console.warn('onExpire called') });
+  } = useTimer({ expiryTimestamp, onExpire: () => console.warn('onExpire called') });
 
   return (
     <div>
@@ -28,7 +28,7 @@ export default function UseTimerDemo({ expiryTimestamp }: Object) {
           // Restarts to 10 minutes timer
           const time = new Date();
           time.setSeconds(time.getSeconds() + 600);
-          restart(time, true);
+          restart(time);
         }}
       >
         Restart

readme.md

@@ -33,7 +33,7 @@ function MyTimer({ expiryTimestamp }) {
     pause,
     resume,
     restart,
-  } = useTimer({ expiryTimestamp, autoStart: true, onExpire: () => console.warn('onExpire called') });
+  } = useTimer({ expiryTimestamp, onExpire: () => console.warn('onExpire called') });
 
 
   return (
@@ -73,7 +73,7 @@ export default function App() {
 | key | Type | Required | Description |
 | --- | --- | --- | ---- |
 | expiryTimestamp | number(timestamp) | YES | this will define for how long the timer will be running   |
-| autoStart | boolean | No | flag to decide if timer should start automatically |
+| autoStart | boolean | No | flag to decide if timer should start automatically, by default it is set to `true` |
 | onExpire | Function | No | callback function to be executed once countdown timer is expired |
 
 
@@ -143,7 +143,7 @@ export default function App() {
 
 | key | Type | Required | Description |
 | --- | --- | --- | ---- |
-| autoStart | boolean | No | if set to `true` stopwatch will auto start |
+| autoStart | boolean | No | if set to `true` stopwatch will auto start, by default it is set to `false` |
 | offsetTimestamp | number | No | this will define the initial stopwatch offset example: `const stopwatchOffset = new Date(); stopwatchOffset.setSeconds(stopwatchOffset.getSeconds() + 300);` this will result in a 5 minutes offset and stopwatch will start from 0:0:5:0 instead of 0:0:0:0 |
 
 ### Values

src/useTimer.js

@@ -13,7 +13,7 @@ function getDelayFromExpiryTimestamp(expiryTimestamp) {
   return extraMilliSeconds > 0 ? extraMilliSeconds : DEFAULT_DELAY;
 }
 
-export default function useTimer({ expiryTimestamp: expiry, onExpire, autoStart }) {
+export default function useTimer({ expiryTimestamp: expiry, onExpire, autoStart = true }) {
   const [expiryTimestamp, setExpiryTimestamp] = useState(expiry);
   const [seconds, setSeconds] = useState(Time.getSecondsFromExpiry(expiryTimestamp));
   const [isRunning, setIsRunning] = useState(autoStart);