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<!--info-header-start--><h1>IsOdd </h1><blockquote><p>by jiangshan <a href="https://github.com/jiangshanmeta" target="_blank">@jiangshanmeta</a></p></blockquote><p><a href="https://tsch.js.org/30301/play" target="_blank"></a> </p><!--info-header-end-->

return true is a number is odd

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