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feat(packages/sui-react-router): avoid extra render during first load #1654

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merged 3 commits into from
Nov 6, 2023
Merged

feat(packages/sui-react-router): avoid extra render during first load #1654

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78a6aef
feat(packages/sui-react-router): avoid extra rerender during first load
Nov 2, 2023
fdce67f
feat(packages/sui-react-router): update skip strategy
Nov 2, 2023
14705d8
feat(packages/sui-react-router): small improvement
Nov 2, 2023
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15 changes: 12 additions & 3 deletions packages/sui-react-router/src/Router.js
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Original file line number Diff line number Diff line change
Expand Up @@ -65,16 +65,25 @@ const Router = ({
const [state, setState] = useState({router, params, components})

useEffect(() => {
let prevState = {}
let prevState = null
const handleTransition = (err, nextState) => {
if (err) {
if (onError) return onError(err)
throw err
}

// avoid not needed re-renders of the state if the prevState and the nextState
// are the same reference
if (prevState === nextState) return
// are the same reference or if the first render

if (!prevState) {
prevState = nextState
return
}

if (prevState === nextState) {
return
}

prevState = nextState

const {components, params, location, routes} = nextState
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