Add fish.length check

maddiedierker · maddiedierker · commit 0983a3adcba0 · 2019-11-22T12:55:42.000-08:00
diff --git a/src/demo/ui.jsx b/src/demo/ui.jsx
@@ -894,7 +894,7 @@ let Pond = class Pond extends React.Component {
     const fish = showRecallFish ? state.recallFish : state.pondFish;
 
     // Don't call arrangeFish if fish have already been arranged.
-    if (!fish[0].getXY()) {
+    if (fish.length > 0 && !fish[0].getXY()) {
       arrangeFish(fish);
     }
 

Original file line number	Diff line number	Diff line change
`@@ -894,7 +894,7 @@ let Pond = class Pond extends React.Component {`
`894`	`894`	`const fish = showRecallFish ? state.recallFish : state.pondFish;`
`895`	`895`
`896`	`896`	`// Don't call arrangeFish if fish have already been arranged.`
`897`		`- if (!fish[0].getXY()) {`
	`897`	`+ if (fish.length > 0 && !fish[0].getXY()) {`
`898`	`898`	`arrangeFish(fish);`
`899`	`899`	`}`
`900`	`900`