JavaScript Common validation Function summary _javascript skill

/** * 2010-7-13 * He Sen * Love * js various forms of data validation * * */*********************************************************************** //************************************* Digital Verification *****************************************//********* //** * Check whether a string of characters entered is all numeric * input: str String * return Back: TRUE or flase;


True is the number/function Checknum (str) {return Str.match (/\d/) = = null;} /** * Check whether a string of characters entered is a decimal * input: STR String * Returns: TRUE or Flase;
  True is decimal */function Checkdecimal (str) {if (Str.match/^-?\d+ (\.\d+) $/g) = null) {return false;
  else {return true; }/** * Checks whether a string of characters entered is an integer data * input: STR String * Returns: TRUE or Flase;
  True is decimal */function Checkinteger (str) {if (Str.match (/^[-+]?\d*$/) = = null) {return false;
  else {return true; }
}

/**************************************************************************************/
/******************** Character Verification *****************************************/
/**************************************************************************************/


/**
 * Check if a string of characters entered is a character * input: str String * Returns: TRUE or Flase;
  True indicates that all characters do not contain kanji */function checkstr (str) {if (/[^\x00-\xff]/g.test (str)) {return false;
  else {return true; }/** * Check that a string of characters entered contains kanji * Input: str String * Returns: TRUE or Flase;
  True to include kanji/function Checkchinese (str) {if (Escape (str). IndexOf ("%u")!=-1) {return true;
  else {return false; }/** * Check that the entered mailbox format is correct * ENTER: STR String * Returns: TRUE or Flase; True indicates a well-formed/function Checkemail (str) {if Str.match (/[a-za-z0-9_-]+[@) (\s*) (net|com|cn|org|cc|tv|[
  0-9]{1,3}) (\s*)/g) = = null) {return false;
  else {return true; }/** * Check the format of the phone number entered is correct * ENTER: STR String * return: TRUE or flase; True indicates well-formed/function Checkmobilephone (str) {if (Str.match (/^ (?: 13\d|15[89))-?\d{5} (\d{3}|\*{3}) $/) = = null) {RET
  Urn false;
  else {return true; }/** * Check that the fixed phone number entered is correct *Input: str String * Returns: TRUE or Flase; True represents a well-formed/function Checktelephone (str) {if (Str.match) (/^ ([0\+]\d{2,3}-)?
  0\d{2,3})-(\d{7,8}) (-(\d{3,}))? $/) = = null) {return false;
  else {return true; }/** * Check QQ format is correct * ENTER: STR String * return: TRUE or flase;
  True indicates a well-formed/function checkqq (str) {if str.match (/^\d{5,10}$/) = = null) {return false;
  else {return true; }/** * Check that the ID number entered is correct * ENTER: STR String * Returns: TRUE or Flase; True indicates a well-formed/function Checkcard (str) {//15-digit ID card regular expression var arg1 =/^[1-9]\d{7} ((0\d) | (
  1[0-2])) (([0|1|2]\d) |3[0-1]) \d{3}$/; 18-digit ID card regular expression var arg2 =/^[1-9]\d{5}[1-9]\d{3} ((0\d) | (
  1[0-2])) (([0|1|2]\d) |3[0-1]) ((\d{4}) |\d{3}[a-z]) $/;
  if (Str.match (arg1) = = null && str.match (arg2) = = null) {return false;
  else {return true; }/** * Check that the IP address entered is correct * ENTER: STR String * Returns: TRUE or Flase; True indicates a well-formed/function Checkip (str) {var arg =/^ (\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]) $/;
  if (Str.match (arg) = = null) {return false;
  else {return true; }/** * Check that the URL address entered is correct * ENTER: STR String * Returns: TRUE or Flase; True indicates a well-formed/function Checkurl (str) {if Str.match (/http[s]?| FTP): \/\/[^\/\.] +?\..
  +\w$/i = = null) {return false} else {return true; }/** * Check if the character entered has a special character * input: str String * Returns: TRUE or Flase; True indicates that a special character * is used primarily for registration information validation/function Checkquote (str) {var items = new Array ("~", "'", "!", "@", "#", "$", "%", "^")
  , "&", "*", "{", "}", "[", "]", "(", ")");
  Items.push (":", ";", "'", "|", "\", "<", ">", "?", "/", "<<", ">>", "| |", "//");
  Items.push ("admin", "Administrators", "Administrator", "admin", "system Administrator");
  Items.push ("Select", "Delete", "Update", "Insert", "create", "drop", "alter", "Trancate");
  str = Str.tolowercase ();
    for (var i = 0; i < items.length i++) {if (Str.indexof (items[i)) >= 0) {return true;
}  return false; }


/**************************************************************************************/
/********************* Verification of Time *****************************************//*********************************************** //** * Check date format is correct * ENTER: STR String * return: TRUE or flase; True indicates the format is correct * Note: The Chinese date format cannot be validated here * Verify Short Date (2007-06-05)/function checkdate (str) {//var Value=str.match (/(^ (1[8-9]\d{2}) | ([2-9]\d{3})] (-) (10|12|0?) [13578]) (-) (3[01]| [12] [0-9]|0? [1-9]) $)| (^ (1[8-9]\d{2}) | ([2-9]\d{3})] (-) (11|0?) [469]) (-) (30| [12] [0-9]|0? [1-9]) $)| (^ (1[8-9]\d{2}) | ([2-9]\d{3})] (-) (0?2) (-) (2[0-8]|1[0-9]|0?) [1-9]) $)| (^ ([2468][048]00) (-) (0?2) (-) (29) $) | (^ ([3579][26]00) (-) (0?2) (-) (29) $) | (^ ([1][89][0][48]) (-) (0?2) (-) (29) $) | (^ ([2-9][0-9][0][48]) (-) (0?2) (-) (29) $) | (^ ([1][89][2468][048]) (-) (0?2) (-) (29) $) | (^ ([2-9][0-9][2468][048]) (-) (0?2) (-) (29) $) | (^ ([1][89][13579][26]) (-) (0?2) (-) (29) $) | (^ ([2-9][0-9][13579][26]) (-) (0?2) (-) (29) $))
  /); var value = str.Match (/^ (\d{1,4}) (-|\/) (\d{1,2}) \2 (\d{1,2}) $/);
  if (value = = null) {return false;
    else {var date = new Date (value[1], value[3]-1, value[4]); Return (date.getfullyear () = = Value[1] && (Date.getmonth () + 1) = = Value[3] && date.getdate () = = Value[4])
  ; }/** * Check that the time format is correct * ENTER: STR String * Returns: TRUE or Flase; True means the format is correct * verification time (10:57:10)/function Checktime (str) {var value = Str.match (/^ (\d{1,2}) (:)?
  \d{1,2}) \2 (\d{1,2}) $/) if (value = = null) {return false; else {if (value[1] > | | value[3] > [| | value[4] >) {return false} else {R
    Eturn true; }}/** * Check full date time format is correct * ENTER: STR String * Returns: TRUE or Flase; True indicates a well-formed * (2007-06-05 10:57:10)/function Checkfulltime (str) {//var value = Str.match (/^ (\d{1,4}) (-|\/) (\d{1,2}) \
  2 (\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2}) $/); var value = Str.match (/^ (?: 19|20) [0-9][0-9]-(?:(?: 0 [1-9]) | (?: 1[0-2]) -(:(?: [0-2][1-9]) | (?: [1-3][0-1]) (?:(?: [0-2][0-3]) |
  (?: [0-1][0-9]): [0-5][0-9]:[0-5][0-9]$/);
  if (value = = null) {return false; else {//var date = new Date (checkfulltime[1], checkfulltime[3]-1, checkfulltime[4], checkfulltime[5], checkfull
    TIME[6], checkfulltime[7]); Return (date.getfullyear () = = Value[1] && (Date.getmonth () + 1) = Value[3] && date.getdate () = = Value[4 ] && date.gethours () = value[5] && date.getminutes () = value[6] && date.getseconds () = = Value[7]
    );
  return true; }
  
}




/**************************************************************************************/
/******************** Verification of ID number *************************************//************************************************ //** * ID card 15-bit encoding rule: dddddd YYMMDD xx p * DDDDDD: Region code * YYMMDD: Birth date * XX: Sequential class Code , unable to determine * p: sex, odd male, even number for female * <p/> * ID card 18-bit encoding rule: dddddd yyyymmdd xxx y * dddddd: Region code * YYYYMMDD: Birth date * XXX: Sequential class code, Cannot determine, odd number is male, even number isFemale * y: Parity code, which can be computed by the first 17 digits, * <p/> * 18-digit weighting factor (from right to left) Wi = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1] * Verify bit Y = [1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2] * check digit calculation formula: y_p = mod (∑ (AIXWI), one) * I for the ID number from the right to the left of the number of 2...18 bit;  Y_p for Feet Check Code array location */var Wi = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1];//weighted factor var validecode = [1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2];//ID Verification bit value. 10 represents X function Idcardvalidate (idcard) {Idcard = Trim (idcard.replace (//g, "
  "));
  if (idcard.length = =) {return Isvaliditybrithby15idcard (Idcard); else if (idcard.length = =) {var A_idcard = Idcard.split ("");//Get an ID array if (isvaliditybrithby18i
      Dcard (Idcard) && Istruevalidatecodeby18idcard (A_idcard)) {return true;
      else {return false;
    } else {return false; }/** * Determines whether the final verification bit is correct with the ID number 18 digits * @param a_idcard ID Number array * @return/function Istruevalidatecodeby18idcard (A_IDCA RD) {var sum = 0;  Declares the weighted sum variable if (a_idcard[17].tolowercase () = = ' x ') {a_idcard[17] = 10;//replaces the last bit X's captcha with 10 for subsequent operations} for (Var i = 0; I < 17; i++) {sum + = wi[i] * a_idcard[i];//weighted sum} valcodeposition = sum% 11;//get captcha position if (a_idcard[17) = = Valid
  Ecode[valcodeposition]) {return true;
  else {return false; }/** * Through the identity card is a male or female * @param idcard 15/18 ID Card number * @return ' female '-female, ' male '-male * * Function Maleorfemalbyidcard (IDCA RD) {Idcard = Trim (idcard.replace (//g, "")), and/or handle the ID number.  
  Includes spaces between characters.
    if (Idcard.length =) {if (idcard.substring)% 2 = 0) {return ' female ';
    else {return ' male ';
      ' Else if (idcard.length = = {if (idcard.substring)% 2 = 0) {return ' female ';
      else {return ' male ';
    } else {return null; }/** * Verify that the birthday in the 18-digit ID number is a valid birthday * @param idcard 18-digit ID card String * @return/function Isvaliditybrithby18idcard (IDCARD18) {var year = idcard18.substring (6, 10);
  var month = idcard18.substring (10, 12);
  var day = idcard18.substring (12, 14);
  var temp_date = new Date (year, parsefloat (month)-1, parsefloat (day));
  Here use getFullYear () to get the year to avoid the bug problem if (Temp_date.getfullyear ()!= parsefloat () | |
  Temp_date.getmonth ()!= parsefloat (month)-1 | |
  Temp_date.getdate ()!= parsefloat (day)) {return false;
  else {return true; }/** * Verify that the birthday in the 15-digit ID number is a valid birthday * @param idCard15 15-digit ID card String * @return/function Isvaliditybrithby15idcard (idcard
  {var year = idcard15.substring (6, 8);
  var month = idcard15.substring (8, 10);
  var day = idcard15.substring (10, 12);
  var temp_date = new Date (year, parsefloat (month)-1, parsefloat (day));
  The age of your old ID card does not need to consider the millennium bug problem and use the getyear () method if (Temp_date.getyear ()!= parsefloat (year) | |
  Temp_date.getmonth ()!= parsefloat (month)-1 | |
  Temp_date.getdate ()!= parsefloat (day)) {return false;
  else {return true; }
///Remove string-and-tail space function trim (str) {return str.replace (/^\s*) | ( \s*$)/g, "");

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