14 lines
326 B
TypeScript
14 lines
326 B
TypeScript
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import { useCallback, useEffect, useRef } from 'react'
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export function useTimeSinceFirstRender() {
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const startTimeRef = useRef(0)
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useEffect(() => {
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startTimeRef.current = Date.now()
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}, [])
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return useCallback(() => {
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if (!startTimeRef.current) return 0
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return Date.now() - startTimeRef.current
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}, [])
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}
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