利用javascript的算术运算符获取一个数字的每位数字

<script type="text/javascript">var a = 12345;
//			console.log(a);var b = parseInt(a/10000);console.log('万位='+b);var c = parseInt((a%10000)/1000);//12345%10000=2345 --->2345/1000=2.345 再取整console.log('千位='+c);var d = parseInt((a/100)%10);//12345/100=123.45 --->123.45%10=3.45000000000003 再取整console.log('百位='+d);var e = parseInt((a%100)/10);//12345%100=45 --->45/10=4.5 再取整console.log('十位='+e);var f = a%10;console.log('个位='+f);</script>