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made Exercise 2.7 actually boot up

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Ken
2019-02-28 22:49:41 -08:00
parent 800f621dfb
commit 129dd3c74b
5 changed files with 14 additions and 6 deletions
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3
step2-08/demo/src/components/TodoFooter.tsx
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@@ -10,7 +10,8 @@ interface TodoFooterProps {
}
const TodoFooter = (props: TodoFooterProps) => {
const itemCount = Object.keys(props.todos).filter(id => !props.todos[id].completed).length;
const { todos } = props;
const itemCount = todos ? Object.keys(todos).filter(id => !props.todos[id].completed).length : 0;
return (
<Stack horizontal horizontalAlign="space-between">