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Corrected typo/grammar issue (#2943)

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Farjad Fazli
2020-05-06 14:50:03 -04:00
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commit 0075e554dd
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content/tutorial/tutorial.md
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@@ -1045,7 +1045,7 @@ Let's `map` over the `history` in the Game's `render` method:
**[View the full code at this point](https://codepen.io/gaearon/pen/EmmGEa?editors=0010)**
For each move in the tic-tac-toes's game's history, we create a list item `<li>` which contains a button `<button>`. The button has a `onClick` handler which calls a method called `this.jumpTo()`. We haven't implemented the `jumpTo()` method yet. For now, we should see a list of the moves that have occurred in the game and a warning in the developer tools console that says:
For each move in the tic-tac-toe game's history, we create a list item `<li>` which contains a button `<button>`. The button has a `onClick` handler which calls a method called `this.jumpTo()`. We haven't implemented the `jumpTo()` method yet. For now, we should see a list of the moves that have occurred in the game and a warning in the developer tools console that says:
> Warning:
> Each child in an array or iterator should have a unique "key" prop. Check the render method of "Game".