js verification function to verify mobile phone mailbox/email zip code ID card Chinese ip and S There are 3 ways to get elements

One.js verification function Verify mobile phone mailbox/email zip code ID card Chinese ip

URL:

http://blog.sina.com.cn/s/blog_4481a3460100jkyk.html

Email verification:

function jsmail (mail) {return (newRegExp (/ ^ \ w + ((- \ w +) | (\. \ w +)) * \ @ [A-Za-z0-9] + ((\. | -) [A -Za-z0-9] +) * \. [A-Za-z0-9] + $ /). Test (mail));}

Mobile number verification:

function isMobel(value)  
{   
if(/^13\d{9}$/g.test(value)||(/^15[0-35-9]\d{8}$/g.test(value))||  
(/^18[05-9]\d{8}$/g.test(value))){    
            returntrue;  
}else{  
            returnfalse;  
}   
}
// remove left space

function LTrim(str)

{

return str.replace(/^\s*/g,"");

}

// remove right space

function RTrim(str)

{

return str.replace(/\s*$/g,"");

}

//remove spaces from both ends of the string

function trim(str)

{

return str.replace(/(^\s*)|(\s*$)/g,"");

}

//remove spaces in the string

function CTim(str)

{

return str.replace(/\s/g,'');

}

//Is it a string of numbers

function is_digitals(str)

{

var reg=/^[0-9]*$/;//match integer

returnreg.test(str);     

}

//Verify whether it is an integer, including positive and negative numbers;

function Is_Int(str)

{

var reg = / ^ (- | \ +)? d + $ /;

return reg.test(str);

}

// is an integer greater than 0

function Is_positive_num(str)

{

var reg = / ^ \ d + $ /;

return reg.test(str);

}

// check for negative integers

function Is_minus(str)

{

var reg = / ^ - \ d + $ /;

return reg.test(str);

}

// Verify if it is a floating point number (positive number)

function IsPositiveFloat(str)

{

var check_float =newRegExp("^[1-9][0-9]*\.[0-9]+$");//Match floating point numbers

return check_float.exec(str);

}

//Whether it is a landline phone, the area code is 3 to 4 digits, the number is 7 to 8 digits, the area code and number are separated by "-", and the transfer number is 1 to 6 digits, enclosed in parentheses and followed by the number

function IsTelphone(str)

{

varreg = / ^ [0-9] {3,4} \ - \ d {7,8} (\ (\ d {1,6} \))? $ /;

    

    if(reg.test(str))

  return true;

    else

       return false;

}

//Taiwan mobile phone number format

var tel = / ^ (09) d {8} $ /;
    if(phone.value=="" || (!tel.test(phone.value)))
    {
       alert('Please fill in the correct (mobile phone format 09xxxxxxxx )!');
     phone.focus();
     return false;
    }

//Mobile phone number verification, verify 13 series and 158, 159 numbers, length 11 digits

function IsMobel(str)

{

var reg0 = / ^ 13 \ d {9} $ /;

    var reg1 = / ^ 158 \ d {8} $ /;

    var reg2 =/^159\d{8}$/;

 

    return(reg0.test(str)||reg1.test(str)||reg2.test(str))

}

// Verify if it is Chinese

function IsChinese(str)

{

var reg = / ^ [\ u0391- \ uFFE5] + $ /;

return reg.test(str);

}

//Verify whether it is a QQ number, the length is 5-10 digits

function IsQq(str)

{

var reg = / ^ [1-9] \ d {4.9} $ /;

return reg.test(str);

}

// verify zip code

function IsPostId(str)

{

var reg = / ^ \ d {6} $ /;

return reg.test(str);

}

//Verify if not emailed

function IsEmail(str)

{

varreg=/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/; or

var myreg = / ^ [-_ A-Za-z0-9 \.] + @ ([_ A-Za-z0-9] + \.) + [A-Za-z0-9] {2,3} $ / ;

return reg.test(str);

}

// Verify IP address

function IsIp (str)

{

var check=function(v)

{

  try

  {

    return(v<=255 &&v>=0)

  }catch(x){

    return false;

    }

}

var re=str.split(".")

return (re.length==4)?(check(re[0])&& check(re[1])&& check(re[2])&& check(re[3])):false

}

// ID verification

function IsIdnum(str)

{

varCity={11:"Beijing",12:"Tianjin",13:"Hebei",14:"Shanxi",15:"Inner Mongolia",21:"Liaoning",22:"Jilin",23:"Heilongjiang" ,

    31: "Shanghai", 32: "Jiangsu", 33: "Zhejiang", 34: "Anhui", 35: "Fujian", 36: "Jiangxi", 37: "Shandong", 41: "Henan", 42: "Hubei",

    43: "Hunan", 44: "Guangdong", 45: "Guangxi", 46: "Hainan", 50: "Chongqing", 51: "Sichuan", 52: "Guizhou", 53: "Yunnan", 54: "Tibet",

    61: "Shaanxi", 62: "Gansu", 63: "Qinghai", 64: "Ningxia", 65: "***", 71: "Taiwan", 81: "Hong Kong", 82: "Macau", 91:"Foreign"}

var iSum = 0

var info=""

if(!/^\d{17}(\d|x)$/i.test(str))

  return false;

str=str.replace(/x$/i,"a");

if(City[parseInt(str.substr(0,2))]==null)

{

  alert( "Error: illegal region");

  return false;

}

sBirthday=str.substr(6,4)+"-"+Number(str.substr(10,2))+"-"+Number(str.substr(12,2));

var d=newDate(sBirthday.replace(/-/g,"/"))

if(sBirthday!=(d.getFullYear()+"-"+(d.getMonth()+1) + "-" + d.getDate()))

{

  alert("Error: illegal birthday");

  return false;

}

for(var i = 17;i>=0;i--)

  iSum += (Math.pow(2,i) % 11) * parseInt(str.charAt(17 - i),11)

if(iSum%11!=1)

{

  alert("Error: illegal license number");

  return false;

}

returnCity[parseInt(str.substr(0,2))]+","+sBirthday+","+(str.substr(16,1)%2?"男":"女")

}

//Determine whether it is a short time, like (13:04:06)

function IsTime(str)

{

var a =str.match(/^(\d{1,2})(:)?(\d{1,2})\2(\d{1,2})$/);

if (a == null)

{

  alert('The input parameter is not in time format'); return false;

}

if (a[1]>24 ||a[3]>60 || a[4]>60)

{

  alert("Time format is incorrect");

  return false

}

return true;

}

//Short date, like (2003-12-05)

function IsDate(str)

{

var r = str.match (/ ^ (\ d {1,4}) (- | \ /) (\ d {1,2}) \ 2 (\ d {1,2}) $ /);

if(r==null)

  return false;

var d= new Date(r[1], r[3]-1,r[4]);

return(d.getFullYear()==r[1]&&(d.getMonth()+1)==r[3]&&d.getDate()==r[4]);

}

// long time, like (2003-12-05 13:04:06)

function IsDateTime(str)

{

var reg =/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})(\d{1,2}):(\d{1,2}):(\d{1,2})$/;

var r = str.match (reg);

if(r==null)

  return false;

var d= new Date(r[1],r[3]-1,r[4],r[5],r[6],r[7]);

return(d.getFullYear()==r[1]&&(d.getMonth()+1)==r[3]&&d.getDate()==r[4]&&d.getHours()==r[5]&&d.getMinutes()==r[6]&&d.getSeconds()==r[7]);

}

// Judging that the characters are all composed of aZ or AZ letters

function Is_Letters(str)

{

var reg = / [^ a-zA-Z] / g;

return reg.test(str);

}

// Judging characters are composed of letters and numbers.

function Is_letter_num(str)

{

var reg = / [^ 0-9a-zA-Z] / g;

return reg.test(str);

}

//The judgment character consists of letters and numbers, underscores, and dots. And the beginning can only be underscores and letters

function IsUserName(str)

{

var reg = / ^ ([a-zA-z _] {1}) ([\ w] *) $ / g;

return reg.test(str);

}

// Determine the type of browser

function GetBrowseType()

{

alert(window.navigator.appName);

}

/ / Determine the version of ie

function Get_Eidition()

{

alert(window.navigator.appVersion);

}

/ / Determine the resolution of the client

function GetResolution()

{

alert(window.screen.height);

alert(window.screen.width);

}

// Determine whether the user name is a number and letter swipe

function notchinese(str)

{

var reg = / [^ A-Za-z0-9 _] / g

    if(reg.test(str))

{

    return (false);

    }

else

{

  return(true);

    }

}   

     

// verify url

function IsUrl(str)

{

varreg = / ^ (http \: \ / \ /)? ([a-z0-9] [a-z0-9 \ -] + \.)? [a-z0-9] [a-z0-9 \ -] + [a-z0-9] (\. [az] {2,4}) + (\ / [a-z0-9 \. \, \ - \ _ \% \? \ = \ &]? )? $ / i;

return reg.test(str);

}

// Determine whether it contains Chinese characters       

function ContentWord(str)

{

if (escape(str).indexOf("%u")!=-1)

  return true;

else

  return false;

}

// carriage return to the focus of the next control in the page

function Enter2Tab(e)

{

    try

    {

       var ōb = IsFireFox ? e.target : event.srcElement;

       if(ob.tagName == "INPUT" &&(ob.type== "text" ||ob.type == "password" ||ob.type == "checkbox"

         ||ob.type == "radio") ||ob.tagName == "SELECT")

       {

           var key = IsFireFox ? e.which : event.keyCode;

           if (key == 13)

           {

               if (IsFireFox)

               {

                   event.which = 9;

               }

               else

               {

                   event.keyCode = 9;

               }

           }

       }

    }

   catch(E){}

}

 

function InitAjax()

{

var ajax = false;

　 try

{

　　  ajax = new ActiveXObject("Msxml2.XMLHTTP");

　 } catch (e)

  {

　　    try

    {

　　　    ajax =new ActiveXObject("Microsoft.XMLHTTP");

　　    } catch(E)

    {

　　　    ajax = false;

　　    }

　  }

　 if (!ajax&& typeofXMLHttpRequest!='undefined')

{

　　  ajax = new XMLHttpRequest();

　 }

　 return ajax;

}

function callback(ajax)

{

//If the execution is in normal state, then assign the returned content to the layer specified above

　　if (ajax.readyState == 4&& ajax.status == 200)

{  

　　 show.innerHTML =ajax.responseText;

　　}

else

{

  alert("there was a problem retrieving the xmldata:"+ajax.statusText);

}

}

function getNews(newsID)

{

　//If the parameter newsID is not passed in

　if (typeof(newsID) == 'undefined')

　{

　　return false;

　}

　//The URL address that needs to be used for Ajax

　var url = "show.php?id="+ newsID;

　//Get the position of the news display layer

　var show =document.getElementByIdx("show_news");

　//Instantiate the Ajax object

　var ajax = InitAjax();

　//Use the Get method to request

　ajax.open("GET",url,true);

　//get execution status

　ajax.onreadystatechange=function() {

if (ajax.readyState == 4&& ajax.status == 200)

{  

　　 show.innerHTML =ajax.responseText;

　　}

}

　// send empty

　ajax.send(null);

}

//_______Select all__________

function SelectAll()

{

    varempty;

    var f =document.forms[0];

    for (var i =0; i < f.length; i++)

    {

       empty = f[i];

       if (empty.type == "checkbox" &&empty.disabled == false)

           empty.checked = true;

    }

}

//__________Return to select __________

function SelectReverse()

{

    varempty;

    var f =document.forms[0];

    for (var i =0; i < f.length; i++)

    {

       empty = f[i];

       if (empty.type == "checkbox" &&empty.disabled == false)

  if(empty.checked == true)

  {

    empty.checked = false;

  }

  else

  {

    empty.checked = true;

  }

    }

}

2. JS has 3 ways to get elements

Source: http://www.popo4j.com/tag/DOM.html

There are 3 ways to get elements in native JS:

getElementById('id')
getElementsByName('name')
getElementsByTagName('tag')

getElementById is the fastest way to get elements, but we can't give each HTML element an ID, so we need a very convenient way to get elements by classname:

function getElementsByClassName(className,tagName){
var ele=[],all=document.getElementsByTagName(tagName||"*");
for(var i=0;i<all.length;i++){
if(all[i].className==className){
he[ele.length]=all[i];
}
}
return it;
}
console.log(getElementsByClassName("entry"));
console.log(getElementsByClassName("entry","div"));

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js verification function to verify mobile phone mailbox/email zip code ID card Chinese ip and S There are 3 ways to get elements

One.js verification function Verify mobile phone mailbox/email zip code ID card Chinese ip

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