Verification of JS Regular Expressions and JS Regular Expressions

Verification of JS Regular Expressions and JS Regular Expressions

// Determine whether the input content is empty function IsNull () {var str = document. getElementById ('str '). value. trim (); if (str. length = 0) {alert ('Sorry, the text box cannot be blank or blank! '); // Change the "text box" to the attribute name you want to verify!} // Judge whether the date type is type in YYYY-MM-DD format function IsDate () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {var reg =/^ (\ d {}) (-| \/) (\ d {}) \ 2 (\ d })/; var r = str. match (reg); if (r = null) alert ('Sorry, the date format you entered is incorrect! '); // Change "date" to the name of the property to be verified!} // Determine whether the date type is YYYY-MM-DD hh: mm: ss format type function IsDateTime () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {var reg =/^ (\ d {}) (-| \/) (\ d {}) \ 2 (\ d }) (\ d {1, 2}) :( \ d {1, 2}) :( \ d {1, 2}) $/; var r = str. match (reg); if (r = null) alert ('Sorry, the date format you entered is incorrect! '); // Change "date" to the name of the property to be verified!} // Determine whether the date type is hh: mm: ss type function IsTime () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ (20 | 21 | 22 | 23 | [0-1] \ d) \: [0-5] [0-9]) (\: [0-5] [0-9])? $/If (! Reg. test (str) {alert ("sorry, the date format you entered is incorrect! "); // Change" date "to the attribute name you want to verify! }}}// Determines whether the entered character is an English letter function IsLetter () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ [a-zA-Z] + $/; if (! Reg. test (str) {alert ("sorry, the English letter format you entered is incorrect! "); // Change" English letter type "to the attribute name you want to verify! }}}// Determines whether the input character is an integer function IsInteger () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ [-+]? \ D * $/; if (! Reg. test (str) {alert ("sorry, the format of the integer type you entered is incorrect! "); // Replace" Integer type "with the property name you want to verify! }}}// Determines whether the input character is double precision function IsDouble (val) {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ [-\ +]? \ D + (\. \ d + )? $/; If (! Reg. test (str) {alert ("sorry, the format of the Double Precision type you entered is incorrect! "); // Replace" double-precision type "with the property name you want to verify!} // Determine whether the input character is: a-z, A-Z, 0-9 function IsString () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ [a-zA-Z0-9 _] + $/; if (! Reg. test (str) {alert ("sorry, the format of the string type you entered is incorrect! "); // Replace" string type "with the property name you want to verify! }}}// Determine whether the input character is Chinese function IsChinese () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ [\ u0391-\ uFFE5] + $/; if (! Reg. test (str) {alert ("sorry, the format of the string type you entered is incorrect! "); // Replace" string type "with the property name you want to verify! }}} // Determine whether the input EMAIL format is correct function IsEmail () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ \ w + ([-+.] \ w +) * @ \ w + ([-.] \ w + )*\. \ w + ([-.] \ w +) * $/; if (! Reg. test (str) {alert ("sorry, the format of the string type you entered is incorrect! "); // Replace" string type "with the property name you want to verify! }}} // Determine whether the entered zip code (only six digits can be entered) is correct function IsZIP () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ \ d {6} $/; if (! Reg. test (str) {alert ("sorry, the format of the string type you entered is incorrect! "); // Replace" string type "with the property name you want to verify! }}} // Judge whether the input number is greater than a specific number. function MaxValue () {var val = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ [-+]? \ D * $/; if (! Reg. test (str) {// determine whether it is a numeric type if (val> parseInt ('000000') // "123" is the maximum value set by yourself {alert ('Sorry, the number you entered is out of the range '); // change "Number" to the attribute name you want to verify! }}} Phone:/^ (\ d {2, 3} \) | (\ d {3 }\-))? (\ (0 \ d {2, 3} \) | 0 \ d {2, 3 }-)? [1-9] \ d {6, 7} (\-\ d {1, 4 })? /; Var r = str. match (reg); if (r = null) alert ('Sorry, the date format you entered is incorrect! '); // Change "date" to the name of the property to be verified!} // Determine whether the date type is YYYY-MM-DD hh: mm: ss format type function IsDateTime () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {var reg =/^ (\ d {}) (-| \/) (\ d {}) \ 2 (\ d }) (\ d {1, 2}) :( \ d {1, 2}) :( \ d {1, 2}) $/; var r = str. match (reg); if (r = null) alert ('Sorry, the date format you entered is incorrect! '); // Change "date" to the name of the property to be verified!} // Determine whether the date type is hh: mm: ss type function IsTime () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ (20 | 21 | 22 | 23 | [0-1] \ d) \: [0-5] [0-9]) (\: [0-5] [0-9])? $/If (! Reg. test (str) {alert ("sorry, the date format you entered is incorrect! "); // Change" date "to the attribute name you want to verify! }}}// Determines whether the entered character is an English letter function IsLetter () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ [a-zA-Z] + $/; if (! Reg. test (str) {alert ("sorry, the English letter format you entered is incorrect! "); // Change" English letter type "to the attribute name you want to verify! }}}// Determines whether the input character is an integer function IsInteger () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ [-+]? \ D * $/; if (! Reg. test (str) {alert ("sorry, the format of the integer type you entered is incorrect! "); // Replace" Integer type "with the property name you want to verify! }}}// Determines whether the input character is double precision function IsDouble (val) {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ [-\ +]? \ D + (\. \ d + )? $/; If (! Reg. test (str) {alert ("sorry, the format of the Double Precision type you entered is incorrect! "); // Replace" double-precision type "with the property name you want to verify!} // Determine whether the input character is: a-z, A-Z, 0-9 function IsString () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ [a-zA-Z0-9 _] + $/; if (! Reg. test (str) {alert ("sorry, the format of the string type you entered is incorrect! "); // Replace" string type "with the property name you want to verify! }}}// Determine whether the input character is Chinese function IsChinese () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ [\ u0391-\ uFFE5] + $/; if (! Reg. test (str) {alert ("sorry, the format of the string type you entered is incorrect! "); // Replace" string type "with the property name you want to verify! }}} // Determine whether the input EMAIL format is correct function IsEmail () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ \ w + ([-+.] \ w +) * @ \ w + ([-.] \ w + )*\. \ w + ([-.] \ w +) * $/; if (! Reg. test (str) {alert ("sorry, the format of the string type you entered is incorrect! "); // Replace" string type "with the property name you want to verify! }}} // Determine whether the entered zip code (only six digits can be entered) is correct function IsZIP () {var str = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ \ d {6} $/; if (! Reg. test (str) {alert ("sorry, the format of the string type you entered is incorrect! "); // Replace" string type "with the property name you want to verify! }}} // Judge whether the input number is greater than a specific number. function MaxValue () {var val = document. getElementById ('str '). value. trim (); if (str. length! = 0) {reg =/^ [-+]? \ D * $/; if (! Reg. test (str) {// determine whether it is a numeric type if (val> parseInt ('000000') // "123" is the maximum value set by yourself {alert ('Sorry, the number you entered is out of the range '); // change "Number" to the attribute name you want to verify! }}} Phone:/^ (\ d {2, 3} \) | (\ d {3 }\-))? (\ (0 \ d {2, 3} \) | 0 \ d {2, 3 }-)? [1-9] \ d {6, 7} (\-\ d {1, 4 })? /Mobile:/^ (\ d2, 3 \ d2, 3) | (\ d {3 }\-))? 13 \ d {9}/Url:/http: \/[A − Za − z0 − 9] + \. [A − Za − z0 − 9] + [\/= \? /Url:/http: \/[A − Za − z0 − 9] + \. [A − Za − z0 − 9] + [\/= \? /IdCard:/^ \ d {15} (\ d {2} [A-Za-z0-9])? /QQ:/[1−9] \ d4, 8/QQ:/[1−9] \ d4, 8/

A special amount:/^ (\ d {1, 3} (, \ d {3}) *) | (\ d +) (\. \ d {2 })? $/

// Note: In addition to the format "xxx xx, xxx xx, XXX.00", // provide the preceding JS verification methods. trim () attribute String. prototype. trim = function () {return this. replace (/(^ \ s *) | (\ s * $)/g ,"");}

Call:

<Input type = "text" name = "str"> <input type = "button" value = "OK" onClick = ""> // write the JS you want to call in onClick. verify the Function

The above is the verification of the JS regular expression introduced by the editor. I hope it will be helpful to you. If you have any questions, please leave a message. The editor will reply to you in time!