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Update 01 - Stateful Functions.js #54

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Update 01 - Stateful Functions.js #54

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8 changes: 6 additions & 2 deletions 07 - Returning State/01 - Stateful Functions.js
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Original file line number Diff line number Diff line change
Expand Up @@ -3,9 +3,13 @@ interface P {
onClick: function;
}

interface S {
count: number;
}

// Callbacks take props and state as their first arguments. To update state,
// they simply return the new version of the state.
function handleClick(props, state, event) {
function handleClick(props: P, state: S, event) {
if (event.button === 1) {
// Middle click resets state to zero
return { count: 0 };
Expand All @@ -30,7 +34,7 @@ function handleClick(props, state, event) {
// );
// };
// }
export function Counter(props : P, state) {
export function Counter(props: P, state: S) {
return (
<div>
Clicked {state ? state.count : 0} times
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