js中string和number类型互转换技巧(分享)

<script type="text/javascript">	function screenInfo() {		var str = '012.8372';		var s = 0;		str = str * 1;		alert(typeof (str));//number		s += '';		alert(typeof (s));//string		var boo = true;		alert(typeof(boo));//boolean		var bs = Boolean(s);		alert("bs:" + typeof (bs));//boolean		alert("bsv:" + bs);//true	}</script>