js验证数字正则表达式(转载)
js验证数字正则表达式
文章分类:Web前端
js验证数字正则表达式
functionistrue(a){
varreg=/^(([a-z]+[0-9]+)|([0-9]+[a-z]+))[a-z0-9]*$/i;
returnreg.test(a);
}
functionisNumeric(a)
{
varreg=/^(-|+)?d+(.d+)?$/
return(reg.test(a));
}
//检查是否为正数
functionisUnsignedNumeric(a)
{
varreg=/^d+(.d+)?$/
alertreg.test(a);
}
//检查是否为整数
functionisInteger(a)
{
varreg=/^(-|+)?d+$/
returnreg.test(a);
}
//检查是否为正整数
functionisUnsignedInteger(a)
{
varreg=/^d+$/
returnreg.test(a);
}
//检查是否数字
functionisNum(a)
{
varreg=/^d+(.d+)?$/;
reg.test(a);
}
//检查是否整数
functionisInt(a)
{
varreg=/^-?d+$/;
returnreg.test(a);
}
//去掉非法字符
functiontrim(str)
{
returnstr.replace(/^\s+|\s+$/g,'');
}
//添加部分正则表达式(JQuery)
//正则规则
"eng":/^[A-Za-z]+$/,
"chn":/^[\u0391-\uFFE5]+$/,
"mail":/\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/,
"url":/^http[s]?:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$/,
"currency":/^\d+(\.\d+)?$/,
"number":/^\d+$/,
"int":/^[0-9]{1,30}$/,
"double":/^[-\+]?\d+(\.\d+)?$/,
"username":/^[a-zA-Z]{1}([a-zA-Z0-9]|[._]){4,19}$/,
"password":/^(\w){6,20}$/,
"safe":/>|<|,|\[|\]|\{|\}|\?|\/|\+|=|\||\'|\\|\"|:|;|\~|\!|\@|\#|\*|\$|\%|\^|\&|\(|\)|`/i,
"dbc":/[ａ-ｚＡ-Ｚ０-９！＠＃￥％＾＆＊（）＿＋｛｝［］｜：＂＇；．，／？＜＞｀～ ]/,
"qq":/[1-9][0-9]{4,}/,
"date":/^((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-))$/,
"year":/^(19|20)[0-9]{2}$/,
"month":/^(0?[1-9]|1[0-2])$/,
"day":/^((0?[1-9])|((1|2)[0-9])|30|31)$/,
"hour":/^((0?[1-9])|((1|2)[0-3]))$/,
"minute":/^((0?[1-9])|((1|5)[0-9]))$/,
"second":/^((0?[1-9])|((1|5)[0-9]))$/,
"mobile":/^((\(\d{2,3}\))|(\d{3}\-))?13\d{9}$/,
"phone":/^[+]{0,1}(\d){1,3}[]?([-]?((\d)|[]){1,12})+$/,
"zipcode":/^[1-9]\d{5}$/,
"bodycard":/^((1[1-5])|(2[1-3])|(3[1-7])|(4[1-6])|(5[0-4])|(6[1-5])|71|(8[12])|91)\d{4}((19\d{2}(0[13-9]|1[012])(0[1-9]|[12]\d|30))|(19\d{2}(0[13578]|1[02])31)|(19\d{2}02(0[1-9]|1\d|2[0-8]))|(19([13579][26]|[2468][048]|0[48])0229))\d{3}(\d|X|x)?$/,
"ip":/^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])$/,
"file":/^[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/,
"image":/.+\.(jpg|gif|png|bmp)$/i,
"word":/.+\.(doc|rtf|pdf)$/i,