js常用验证

1、数字

function testisNum(object)
                       {
         
                        var s =document.getElementById(object.id).value;
             
                            if(s!="")
                            {
                                 if(isNaN(s))
                                {
                                 alert("请输入数字");
                                 object.value="";
                                 object.focus();
                                }
                            }
                        }

 

2、电话号码，传真

//校验普通电话、传真号码：可以“+”开头，除数字外，可含有“-”
            function isTel(object)
            {
            //国家代码(2到3位)-区号(2到3位)-电话号码(7到8位)-分机号(3位)"

             var s =document.getElementById(object.id).value;
             var pattern =/^(([0\+]\d{2,3}-)?(0\d{2,3})-)(\d{7,8})(-(\d{3,}))?$/;
             //var pattern =/(^[0-9]{3,4}\-[0-9]{7,8}$)|(^[0-9]{7,8}$)|(^\([0-9]{3,4}\)[0-9]{3,8}$)|(^0{0,1}13[0-9]{9}$)/;
                 if(s!="")
                 {
                     if(!pattern.exec(s))
                     {
                      alert('请输入正确的电话号码:电话号码格式为国家代码(2到3位)-区号(2到3位)-电话号码(7到8位)-分机号(3位)"');
                      object.value="";
                      object.focus();
                     }
                 }
            }

3、邮箱

 function Check(object)
          {
        var s =document.getElementById(object.id).value;
             var pattern =/^[a-zA-Z0-9_\-]{1,}@[a-zA-Z0-9_\-]{1,}\.[a-zA-Z0-9_\-.]{1,}$/;
                 if(s!="")
                 {
                     if(!pattern.exec(s))
                     {
                      alert('请输入正确的邮箱地址');
                      object.value="";
                      object.focus();
                     }
                 }
               
        }

4、手机号码

//校验手机号码：必须以数字开头，除数字外，可含有“-”
             function isMobile(object)
            {
            var s =document.getElementById(object.id).value;
            var reg0 = /^13\d{5,9}$/;
            var reg1 = /^153\d{4,8}$/;
            var reg2 = /^159\d{4,8}$/;
            var reg3 = /^0\d{10,11}$/;
            var my = false;
            if (reg0.test(s))my=true;
            if (reg1.test(s))my=true;
            if (reg2.test(s))my=true;
            if (reg3.test(s))my=true;
                if(s!="")
                {
                    if (!my)
                    {
                       alert('请输入正确的手机号码');
                       object.value="";
                       object.focus();
                    }
                }
            }

//校验日期
            function isdate(object)
            {
             var s =document.getElementById(object.id).value;
             var pattern =/^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[0-9])|([1-2][0-3]))\:([0-5]?[0-9])((\s)|(\:([0-5]?[0-9])))))?$/;
                 if(s!="")
                 {
                     if(!pattern.exec(s))
                     {
                      alert('请输入正确的日期');
                      object.value="";
                      object.focus();
                     }
                 }        
            }

5、邮编

 //校验(国内)邮政编码
            function isPostalCode(object)
            {
             var s =document.getElementById(object.id).value;
             var pattern =/^[0-9]{6}$/;
                 if(s!="")
                 {
                     if(!pattern.exec(s))
                     {
                      alert('请输入正确的邮政编码');
                      object.value="";
                      object.focus();
                     }
                 }
            }

6、日期

//校验日期
            function isdate(object)
            {
             var s =document.getElementById(object.id).value;
             var pattern =/^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[0-9])|([1-2][0-3]))\:([0-5]?[0-9])((\s)|(\:([0-5]?[0-9])))))?$/;
                 if(s!="")
                 {
                     if(!pattern.exec(s))
                     {
                      alert('请输入正确的日期');
                      object.value="";
                      object.focus();
                     }
                 }        
            }

7.正负小数，整数验证

　　onkeyup="clearNoNum(this)"

　　 function clearNoNum(obj)  
    {  
        //var regexp =/^(\-|\+|[0-9])([0-9])*([0-9]|\.){0,1}([0-9])*$/; //数字，包括整数，小数，正负数
        //先把非数字的都替换掉，除了数字和.  
        obj.value = obj.value.replace(/[^(\d.|\-)]/g,"");
        //obj.value = obj.value.replace(regexp,"");    
        //必须保证第一个为数字而不是.  
        obj.value = obj.value.replace(/^\./g,"");  
        //保证只有出现一个.而没有多个.  
        obj.value = obj.value.replace(/\.{2,}/g,".");
        obj.value = obj.value.replace(/\-{2,}/g,"-");  
        //保证.只出现一次，而不能出现两次以上  
        obj.value = obj.value.replace(".","$#$").replace(/\./g,"").replace("$#$",".");  
        obj.value = obj.value.replace("-","$#$").replace(/\-/g,"").replace("$#$","-");  
    }