Update random number system

loverdeveloper · Mar 8, 2020 · cb9a71d · cb9a71d
1 parent c074cd2
commit cb9a71d
Showing 1 changed file with 14 additions and 4 deletions.
diff --git a/src/App/screens/Main.js b/src/App/screens/Main.js
@@ -44,9 +44,19 @@ function Main() {
  return 0;
  }
 
+ function getRandomInt(max) {
+ let number = Math.floor(Math.random() * Math.floor(max));
+ console.log(number);
+ if(number < 0){
+ console.error("Negative number");
+ getRandomInt(max);
+ }
+ return number;
+ }
+
  function lottery() {
- let number = Math.floor((Math.random() * listItems.length) + 1);
- setLotted(true);
+ let number = +getRandomInt(listItems.length);
+ setLotted(true); 
  setWinner(number);
  }
 
@@ -71,8 +81,8 @@ function Main() {
  </div>
  <img src={winnerImg} className=" winnerImg" alt=""/>
  <h3 className="text-muted">برنده قرعه کشی</h3>
- <h3 className="text-muted">#{winner>-1?[winner-1]:null}</h3>
- <h1 className="text-red">{winner>-1?listItems[winner-1]:null}</h1>
+ <h3 className="text-muted">#{winner>-1?[winner]:null}</h3>
+ <h1 className="text-red">{winner>-1?listItems[winner]:null}</h1>
  </div>
  </div>
  </div>}