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import PropTypes from "prop-types"; | |
import React from "react"; | |
function Image({ src: ImageSrc, root, rootMargin, threshold, alt, ...props }) { | |
const [src, setSrc] = React.useState(false); | |
const imageRef = React.useRef(null); | |
const callback = React.useCallback((entries) => { | |
const [entry] = entries; | |
if (entry.isIntersecting) { |
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function Info({ radius }) { | |
<div> | |
<p>Radius:{radius}</p> | |
<p>Area:{(radius * radius * 22) / 7}</p> | |
</div>; | |
} | |
const MemoizedInfo = React.memo(Info); | |
function Circle({ radius, xCenter, yCenter }) { |