Question

When you press a &#x27;Like&#x27; button, the app quickly shows the &#x27;Like&#x27; count go up. But if the internet then says the &#x27;Like&#x27; didn&#x27;t actually save, what must the app do to make the &#x27;Like&#x27; count go back to what it was before?

Accepted Answer

When a user presses a &#x27;Like&#x27; button, the app typically employs an &#x27;optimistic UI update&#x27;. This means the app immediately changes the visual appearance, like incrementing the &#x27;Like&#x27; count and updating the button&#x27;s state, without waiting for server confirmation. This provides instant feedback, making the app feel responsive. Simultaneously, the app sends a request, often an &#x27;API call&#x27;, to the server to record the &#x27;Like&#x27; in its database. This API call transmits the user&#x27;s action to the server.

When you press a 'Like' button, the app quickly shows the 'Like' count go up. But if the internet then says the 'Like' didn't actually save, what must the app do to make the 'Like' count go back to what it was before?

When a user presses a 'Like' button, the app typically employs an 'optimistic UI update'. This means the app immediately changes the visual appearan....

Community Answers

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When you press a 'Like' button, the app quickly shows the 'Like' count go up. But if the internet then says the 'Like' didn't actually save, what must the app do to make the 'Like' count go back to what it was before?

When a user presses a 'Like' button, the app typically employs an 'optimistic UI update'. This means the app immediately changes the visual appearan....

Community Answers