js判断是否为数字

来源：互联网发布：sql partition by 编辑：程序博客网时间：2024/05/18 17:04

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/***js判断是否为数字***/
function isNumber(s)
{
var patrn=/^[-,+]{0,1}[0-9]{0,}[.]{0,1}[0-9]{0,}$/;
if (!patrn.exec(s))
return false;
return true;
}