JS Judgment code full collection _javascript skill

/*$#################################################$*/
/* Program function: Input Verification * *
/* Function Name: */
/* Function Checkdata (valname,val,valimode,limitlen) * *
/* Feature Description: Verify string Data * *
/* Function Checkusername (val,min,max) * *
/* Function Description: Verify user name */
/* Function Checkpassword (val,min,max) * *
/* Function Description: Verify password * *
/* Function Issame (val1,val2) * *
/* Verify password Match * *
/* Function Checkemail (val,mode) * *
/* Function Description: Verify Email * *
/* Function Checkvalheight (val,min,max,mode) * *
/* Function Description: Verify the user height * *
/* Function Checkvalweight (val,min,max,mode) * *
/* Function Description: Verify the user weight * *
/* Function CheckNumber (val,min,max,mode) * *
/* Function Description: Verify the value * *
/* Function checkpositive (val,min,max,mode) * *
/* Function Description: Verify positive value * *
/* Function checknegative (val,min,max,mode) * *
/* Function Description: Verify negative value * *
/* Function Checkfloat (val,min,max,mode) * *
/* Function Description: Verify the floating-point value * *
/* Function Checkpath (val,mode) * *
/* Function Description: Verify file path * *
/* Function Checkurl (val,mode) * *
/* Function Description: Verify URL * *
/* Function Checkchinaidcard_j (val,mode) * *
/* Function Description: Verify ID Card * *
/* function Isinteger (snum) * *
/* Function Description: Verify the integer * *
/* Function Checkzip (val,slen,mode) * *
/* Function Description: Verify ZIP * *
/* Input parameters: Mode True & False (whether allowed to empty) * *
/* Val form (judged), VA2 form (judged) * *
/* MAX (max), min (min) ... *
/* Write Time: 2003.09.08.2214 * *
/*$#################################################$*/
Validating string data
function Checkdata (Valname,val,valimode,limitlen) {
if (Val.value.indexOf ("<", 0) >0 | | val.value.indexOf (">", 0) >0) {
Alert (valname+) cannot contain < or > characters!. ");
Val.focus ();
Val.select ();
return false;
}
if (valimode==1) {
if (Isblank (Val.value)) {
Alert (valname+ "cannot be empty!");
Val.focus ();
Val.select ();
return false;
}
Tmp=new String (Val.value)
if (Istoolong (Tmp,limitlen)) {
Alert (valname+ "can not exceed the" +limitlen+ "character!");
Val.focus ();
Val.select ();
return false;
}
}
else{
Tmp=new String (Val.value)
if (Istoolong (Tmp,limitlen)) {
Alert (valname+ "cannot exceed" +limitlen+ "character!!");
Val.focus ();
Val.select ();
return false;
}
}
return true;
}
function Isblank (str) {
var i;
var len=str.length;
for (I=0;i<len;++i) {
if (Str.charat (i)!= "")
return false;
}
return true;
}
function Istoolong (str,i) {
var len=str.length;
if (i==0)
return false;
else{
if (len>i)
return true;
Else
return false;
}
}
Verifying user Names
function Checkusername (Val,min,max) {
var len = val.value.length;
if (Len<min | | len>max) {
Alert ("The user name is not the correct length, should be" +min+ "-" +max+ "English letter, number. ");
Val.focus ();
Val.select ();
return false;
}
for (i=0;i<val.value.length;i++) {
var ch = val.value.charAt (i);
if ((ch< "0" | | ch> "9") && (ch< "a" | | ch > "Z")) {
Alert ("User name must consist of lowercase letters or numbers.) ");
Val.focus ();
Val.select ();
return false;
}
}
var-=val.value.charat (0)
if (first< "a" | | | ch > "Z") {
Alert ("User name must begin with a lowercase letter.) ");
Val.focus ();
Val.select ();
return false;
}
return true;
}
Verify Password
function Checkpassword (Val,min,max) {
var len = val.value.length;
if (Len<min | | len>max) {
Alert ("Password length is incorrect, should be" +min+ "-" +max+ "letter, number. ");
Val.focus ();
Val.select ();
return false;
}
for (i=0;i<val.value.length;i++) {
var ch = val.value.charAt (i);
if ((ch< "0" | | ch> "9") && (ch< "a" | | ch > "Z")) {
Alert ("Password must consist of lowercase letters or numbers.) ");
Val.focus ();
Val.select ();
return false;
}
}
return true;
}
Verify password match
function Issame (val1,val2) {
if (Val1.value!= val2.value) {
Alert ("The password entered two times is not the same.) ");
Val2.focus ();
Val2.select ();
return false;
}
Else
return true;
}
Verify Email
function Checkemail (val,mode) {
if ((mode==0) && (val.value== "")) {
return true;
}
var etext
var Elen
var i
var AA
Etext=val.value
Elen=etext.length
if (elen<5) {
Alert ("Please enter the correct email.") ");
Val.focus ();
Val.select ();
return false;
}
i= etext.indexof ("@", 0)
if (i==0 | | i==-1 | | i==elen-1) {
Alert ("Please enter the correct email.") ");
Val.focus ();
Val.select ();
return false;
}
else{
if (Etext.indexof ("@", i+1)!=-1) {
Alert ("Please enter the correct email.") ");
Val.focus ();
Val.select ();
return false;
}
}
if (Etext.indexof ("..", i+1)!=-1) {
Alert ("Please enter the correct email.") ");
Val.focus ();
Val.select ();
return false;
}
I=etext.indexof (".", 0)
if (i==0 | | i==-1 | | | Etext.charat (elen-1) = = '. ') {
Alert ("Please enter the correct email.") ");
Val.focus ();
Val.select ();
return false;
}
if (Etext.charat (0) = = '-' | | Etext.charat (elen-1) = = ') {
Alert ("Please enter the correct email.") ");
Val.focus ();
Val.select ();
return false;
}
if (Etext.charat (0) = = ' _ ' | | Etext.charat (elen-1) = = ' _ ') {
Alert ("Please enter the correct email.") ");
Val.focus ();
Val.select ();
return false;
}
for (i=0;i<=elen-1;i++) {
Aa=etext.charat (i)
if (!) ( (aa== '. ') || (aa== ' @ ') | | (aa== '-') | | (aa== ' _ ') | | (aa>= ' 0 ' && aa<= ' 9 ') | | (aa>= ' A ' && aa<= ' z ') | | (aa>= ' A ' && aa<= ' Z ')) {
Alert ("Please enter the correct email.") ");
Val.focus ();
Val.select ();
return false;
}
}
return true;
}
Verify User Height
function Checkvalheight (val,min,max,mode) {
if ((mode==0) && (val.value== "")) {
return true;
}
var len = val.value.length;
if (Len<min | | len>max) {
Alert ("Please enter the correct height data.") ");
Val.focus ();
Val.select ();
return false;
}
var val2 = Val.value;
for (i=0;i<val2.length;i++) {
var ch = val2.charat (i);
if ((ch< "0" | | | ch> "9")) {
Alert ("Height data must consist of valid digits.") ");
Val.focus ();
Val.select ();
return false;
}
}
if (isNaN (Val2)) {
Alert ("Height data must consist of valid digits.") ");
Val.focus ();
Val.select ();
return false;
}
else if (parseint (val2) <=0) {
Alert ("Height data must consist of valid digits.") ");
Val.focus ();
Val.select ();
return false;
}
else if (Val2.indexof (' 0 ') ==0) {
Alert ("Height data must consist of valid digits.") ");
Val.focus ();
Val.select ();
return false;
}
return true;
}
Verifying user Weight
function Checkvalweight (val,min,max,mode) {
if ((mode==0) && (val.value== "")) {
return true;
}
var len = val.value.length;
if (Len<min | | len>max) {
Alert ("Please enter the correct weight data.") ");
Val.focus ();
Val.select ();
return false;
}
var val2 = Val.value;
for (i=0;i<val2.length;i++) {
var ch = val2.charat (i);
if ((ch< "0" | | | ch> "9")) {
Alert ("Weight data must consist of valid digits.") ");
Val.focus ();
Val.select ();
return false;
}
}
if (isNaN (Val2)) {
Alert ("Weight data must consist of valid digits.") ");
Val.focus ();
Val.select ();
return false;
}
else if (parseint (val2) <=0) {
Alert ("Weight data must consist of valid digits.") ");
Val.focus ();
Val.select ();
return false;
}
else if (Val2.indexof (' 0 ') ==0) {
Alert ("Weight data must consist of valid digits.") ");
Val.focus ();
Val.select ();
return false;
}
return true;
}
Validating values
function CheckNumber (val,min,max,mode) {
if ((mode==0) && (val.value== "")) {
return true;
}
var len = val.value.length;
if (Len<min | | len>max) {
Alert ("Please enter the correct value.") ");
Val.focus ();
Val.select ();
return false;
}
var val2 = Val.value;
for (i=1;i<val2.length;i++) {
var ch = val2.charat (i);
if ((ch< "0" | | | ch> "9")) {
Alert ("Please enter the correct value.") ");
Val.focus ();
Val.select ();
return false;
}
}
if (isNaN (Val2)) {
Alert ("Please enter the correct value.") ");
Val.focus ();
Val.select ();
return false;
}
else if (Val2.indexof (' 0 ') ==0 && len>1) {
Alert ("Please enter the correct valid value.") ");
Val.focus ();
Val.select ();
return false;
}
else if (val2.indexof ('-') ==0 && val2.indexof (' 0 ') ==1) {
Alert ("Please enter the correct valid value.") ");
Val.focus ();
Val.select ();
return false;
}
return true;
}
Validating positive values
function Checkpositive (val,min,max,mode) {
if ((mode==0) && (val.value== "")) {
return true;
}
if (! CheckNumber (Val,min,max,mode)) {
Val.focus ();
Val.select ();
return false;
}
if (parseint (val.value) <=0) {
Alert ("The data must be a valid positive integer.") ");
Val.focus ();
Val.select ();
return false;
}
return true;
}
Validating negative values
function Checknegative (val,min,max,mode) {
if ((mode==0) && (val.value== "")) {
return true;
}
if (! CheckNumber (Val,min,max,mode)) {
Val.focus ();
Val.select ();
return false;
}
if (parseint (val.value) >=0) {
Alert ("The data must be a valid negative integer.") ");
Val.focus ();
Val.select ();
return false;
}
return true;
}
Verifying floating-point values
function Checkfloat (val,min,max,mode) {
if ((mode==0) && (val.value== "")) {
return true;
}
var len = val.value.length;
if (Len<min | | len>max) {
Alert ("Please enter the correct floating-point number.") ");
Val.focus ();
Val.select ();
return false;
}
var val2 = Val.value;
for (i=1;i<val2.length;i++) {
var ch = val2.charat (i);
if ((ch< "0" | | | ch> "9")) {
if (ch!= ".") {
Alert ("Please enter the correct floating-point number.") ");
Val.focus ();
Val.select ();
return false;
}
}
}
if (isNaN (Val2)) {
Alert ("Please enter the correct floating-point number.") ");
Val.focus ();
Val.select ();
return false;
}
else if (Val2.indexof (' 0 ') ==0 && val2.indexof ('. ')! =1) {
Alert ("Please enter the correct valid floating-point value.") ");
Val.focus ();
Val.select ();
return false;
}
else if (val2.indexof ('-') ==0 && val2.indexof (' 0 ') ==1 && val2.indexof ('. ')! =2) {
Alert ("Please enter the correct valid floating-point value.") ");
Val.focus ();
Val.select ();
return false;
}
else if (val2.indexof ('-') ==0 && val2.indexof ('. ') ==1) {
Alert ("Please enter the correct valid floating-point value.") ");
Val.focus ();
Val.select ();
return false;
}
else if (Val2.indexof ('. ') ==0) {
Alert ("Please enter the correct valid floating-point value.") ");
Val.focus ();
Val.select ();
return false;
}
return true;
}
Verifying file paths
function Checkpath (val,mode) {
if ((mode==0) && (val.value== "")) {
return true;
}
var val2 = Val.value;
if (Val2.indexof (': \ \ ') >0) {
var isnot= "!@#$^* () ' ~|]} [{;. >,<?%&+= ";
if (Val2.indexof (' \ ") >0) {
Alert ("Please enter the correct file path.") ");
Val.focus ();
Val.select ();
return false;
}
else{
for (var i = 0;i < val2.length;i++) {
for (var x = 1; x < isnot.length;x++) {
if (Val2.charat (i) ==isnot.charat (x)) {
Alert ("Please enter the correct file path.") ");
Val.focus ();
Val.select ();
return false;
}
}
}
}
}
else{
Alert ("Please enter the correct file path.") ");
Val.focus ();
Val.select ();
return false;
}
return true;
}
Verifying URLs
function Checkurl (val,mode) {
if ((mode==0) && (val.value== "")) {
return true;
}
var val2 = Val.value;
if (Val2.indexof ('://') >0) {
var isnot= "!@$^* () ' ~|]} [{;. >,< ";
if (Val2.indexof (' \ ") >0) {
Alert ("Please enter the correct URL.") ");
Val.focus ();
Val.select ();
return false;
}
else{
for (var i = 0;i < val2.length;i++) {
for (var x = 1; x < isnot.length;x++) {
if (Val2.charat (i) ==isnot.charat (x)) {
Alert ("Please enter the correct URL.") ");
Val.focus ();
Val.select ();
return false;
}
}
}
}
}
else{
Alert ("Please enter the correct URL.") ");
Val.focus ();
Val.select ();
return false;
}
return true;
}
Verify ID
function Checkchinaidcard_j (val,mode) {
if ((mode==0) && (val.value== "")) {
return true;
}
SNo = val.value.toString ()
if (!isinteger (SNo)) {
Alert ("Please enter the correct ID.") ");
Val.focus ();
Val.select ();
return False
}
Switch (sno.length) {
Case 15:if (Isvaliddate (Sno.substr (6,2), Sno.substr (8,2), Sno.substr (10,2))) {
return True
}
Case 17:if (Isvaliddate (Sno.substr (6,4), Sno.substr (10,2), Sno.substr (12,2))) {
return True
}
}
Alert ("Please enter the correct ID.") ");
Val.focus ();
Val.select ();
return False
}
function Isinteger (snum) {
var num
Num=new RegExp (' [^0-9_] ', ')
if (isNaN (Snum)) {
return False
}
else {
if (Snum.search (num) >=0) {
return False
}
else {
return True
}
}
}
Verifying zip
function Checkzip (val,slen,mode) {
if ((mode==0) && (val.value== "")) {
return true;
}
if (Val.value.length!=slen) {
Alert (' Please enter the correct ZIP code!! ');
Val.focus ();
Val.select ();
return False
}
var R1
R1 = new RegExp (' [^0-9] ', ');
if (Val.value.search (R1) >= 0) {
Alert (' Please enter the correct ZIP code!! ');
Val.focus ();
Val.select ();
return False
}
Else
return true;
}
Verification of phone numbers
Requirements:
(1) The telephone number shall consist of numbers, "(") "and"-"
(2) Phone number is 3 to 8 digits
(3) If the phone number contains an area code, then the area code is three digits or four digits
(4) The area code is separated by "(", ")" or "-" and other parts
(5) Mobile phone number is 11 or 12 digits, if 12 digits, then the first digit is 0
(6) The first and second digits of the 11-digit mobile phone number are "13"
(7) The second and third digits of the 12-digit mobile phone number are "13"
According to these rules, you can go with the following regular expressions:
(^[0-9]{3,4}\-[0-9]{3,8}$) | (^[0-9]{3,8}$) | (^\ ([0-9]{3,4}\) [0-9]{3,8}$) | (^0{0,1}13[0-9]{9}$)
<script language= "JavaScript" >
function Phonecheck (s) {
var str=s;
var reg=/(^[0-9]{3,4}\-[0-9]{3,8}$) | (^[0-9]{3,8}$) | (^\ ([0-9]{3,4}\) [0-9]{3,8}$) | (^0{0,1}13[0-9]{9}$)/
Alert (Reg.test (str));
}
</script>
<input type=text name= "iphone" >
<input Type=button onclick= "Phonecheck (document.all.iphone.value)" value= "Check" >