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RolandGuijt / ps-react-fundamentals

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HouseList component runs twice on first load #4

Open kramer888 opened 1 year ago

kramer888 commented 1 year ago

@RolandGuijt - I'm new to React and I'm working on the RenderingSideEffects branch from your React 18 fundamentals.

I see something I'm a little confused about.

  1. When I ran the code I see HouseList is rendered (=executed) twice and not one time when the page loads. Then the useEffect is also called twice. Shouldn't it ran only once?
RolandGuijt commented 1 year ago

See module 3, Detecting Problems and Debugging at the 2 minute mark.

On Tue, 7 Feb 2023, 17:47 kramer888, @.***> wrote:

@RolandGuijt https://github.com/RolandGuijt - I'm new to React and I'm working on the RenderingSideEffects branch from your React 18 fundamentals.

I see something I'm a little confused about.

  1. When I ran the code I see HouseList is rendered (=executed) twice and not one time when the page loads. Then the useEffect is also called twice. Shouldn't it ran only once?

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