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JavaScript One Solution

Joseph Turner
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Joseph Turner
Full Stack JavaScript Techdegree Graduate 16,794 Points
Posted by Joseph Turner
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Joseph Turner
Full Stack JavaScript Techdegree Graduate 16,794 Points

Why not directly access planets from PlanetList, instead of passing planets as a prop into PlanetList?

The video has planets passed into the PlanetList component in the render() method. However, is there a need to do this? My code was fine with just accessing planets directly within the PlanetList component, without passing any props to PlanetList. Is it better practice to do one way or the other? Thank you in advance

1 Answer

Zimri Leijen
Zimri Leijen
11,835 Points

In this specific case it wouldn't matter much, but it's good practice to use props.

When props change, it will fire an event, which causes the component to rerender to reflect the changes. Having a regular variable won't cause a rerender.