JS Regular expression for format check

Today, I did a JS regular expression exercise, using regular expressions for registration Information format Verification, the registration information interface is as follows:

Format requirements:

1, the number of items can not be empty, must be a pure number, can not be duplicated with the database, regular expression /^\d+$/g;

2, the name item cannot be empty;

3, password can not be empty and no space to determine the space text.split (""). Length! = 1, the security level is divided into 3 levels, if all letters or numbers are 1 levels, regular Expressions (Text.search (/^[a-za-z]+$/g)! = 1 ) || (Text.search (/^[0-9]+$/g)! =-1, if only punctuation or punctuation is present at the same time as a letter or number 2, the regular expression text.search (/^[a-za-z0-9]+$/g)! = 1, if the letter, Numbers and punctuation appear at the same time as Level 3;

4, confirm the password entry requirements and password entries to fill in the same password;

5. The grade item cannot be empty, and the format must be level 20**, regular expression text.search (/^\u7b2c{1}20\d+\u7ea7{1}$/)! = 1;

6, the professional items can not be empty, and can only start with Chinese characters, the end can be Chinese characters or the letter regular expression Text.search (/^[\u4e00-\u9fa5]+[a-za-z]*$/g)! =-1;

7, class items can not be empty and the format of the Professional + class is similar to the telecommunications 1001, regular expression text.search (/^[\u4e00-\u9fa5]+\d{4}$/)! = 1;

8, the mobile phone item can be empty, the format is (+86) 1********* Regular expression text.search (/^ (\+86)? 1\d{10}$/)! =-1.

Operating effect:

Run the effect after the correct format is entered:

HTML code:

<!--register--><div style= "Display:block" ><div><span style= "font-weight:bold;" ><label> Register </label></span></div><div><span class= "Input_span" ><label class= "Text_label" > Study No. </label><label class= "Text_label" style= "color:red;" >*</label></span><span class= "Input_span" ><input type= "text" id= "StudentNum_input" onblur= "Checkregisterinfo (1)"/></span><span><label id= "Studentnumcheck_label" ></label></ Span></div><div><span class= "Input_span" ><label class= "Text_label" > Name </label> <label class= "Text_label" style= "color:red;" >*</label></span><span class= "Input_span" ><input type= "text" id= "Name_input" onblur= " Checkregisterinfo (2) "/></span><span><label id=" Namecheck_label "></label></span ></div><div><span class= "Input_span" ><label class= "Text_label" > Password </label> <label class= "Text_label" style= "color:red;" >*</label></span><span class= "Input_span" ><input type= "password" id= "Passwd_rigester_ Input "onblur=" Checkregisterinfo (3) "/></span><span><label id=" Passwdcheck_label "></label" ></span></div><div><span class= "Input_span" id= "confirmpasswd_span" ><label> Confirm password </label><label class= "Text_label" style= "color:red;" > *</label></span><span class= "Input_span" ><input type= "password" id= "ConfirmPasswd_ Input "onblur=" Checkregisterinfo (4) "/></span><span><label id=" Confirmpasswdcheck_label "> </label></span></div><div><span class= "Input_span" ><label class= "Text_label" > Grade </label><label class= "Text_label" style= "color:red;" >*</label></span><span class= "Input_span" ><input type= "text" id= "Grade_input" onblur= " Checkregisterinfo (5) "/></span><span> <label id= "Gradecheck_label" > Format: section 20** </label></span></div><div><span class= " Input_span "><label class=" Text_label "> Professional </label><label class=" Text_label "style=" color:Red; " >*</label></span><span class= "Input_span" ><input type= "text" id= "Major_input" onblur= " Checkregisterinfo (6) "/></span><span><label id=" Majorcheck_label "></label></span ></div><div><span class= "Input_span" ><label class= "Text_label" > Classes </label>< Label class= "Text_label" style= "color:red;" >*</label></span><span class= "Input_span" ><input type= "text" id= "Class_input" onblur= " Checkregisterinfo (7) "/></span><span><label id=" Classcheck_label "> Format: Telecom 1001</label> </span></div><div><span class= "Input_span" id= "Phone_span" ><label class= "Text_label" > Mobile </label></span><span class= "Input_span" ><input TypE= "text" id= "Phone_input" onblur= "Checkregisterinfo (8)"/></span><span><label id= "PhoneCheck_ Label "></label></span></div><div class=" Button_div "><span><input id=" Register_button "type=" button "onclick=" Summitregisterinfo () "value=" User Registration "/></span></div></div ><!--End Register--></div>

JS Authentication Source code:

/** function: Verify that the registration information is legal, call the * parameter when the <input> control loses focus: Num control number, indicates which control triggered the function * return value: If all is valid return true, otherwise give a response error prompt and return false* create    Person: lixam* creation time: 2013-9-14* Modified by: * Modified: */function checkregisterinfo (num) {var text; Switch (num) {///When the Submit button is clicked, check if the required item is empty, preventing direct click submit Button Case 0:if (document.getElementById ("Studentnum_inp UT "). Value = =" "| | document.getElementById ("Name_input"). Value = = "" | | document.getElementById ("Passwd_rigester_input"). Value = = "" | | document.getElementById ("Confirmpasswd_input"). Value = = "" | | document.getElementById ("Grade_input"). Value = = "" | | document.getElementById ("Major_input"). Value = = "" | |                document.getElementById ("Class_input"). Value = = "") {Alert ("Registration failed, key cannot be empty!");            return false;            } else return true;        Break Verification study number Case 1:text = Document.getelementbyId ("Studentnum_input"). Value;            var check = document.getElementById ("Studentnumcheck_label");                Verify if the null if (Text = = "") {Check.style.color = "red";            Check.innertext = "Study number item cannot be empty!";                }//Verify the format else if (Text.search (/^\d+$/g) = =-1) {Check.style.color = "red";            Check.innertext = "Study number should be a pure number!";                } else {//Verify the uniqueness of the number var xmlHttp = Createxmlhttp ();                Xmlhttp.open ("Get", "Ajax.aspx?met=rigesterinfo&data=" + Escape (Text), true);                Xmlhttp.send (NULL);                        Xmlhttp.onreadystatechange = function () {if (xmlhttp.readystate = = 4 & xmlhttp.status = = 200) { The server returns true to indicate that the study number is available if (xmlhttp.responsetext) {che                            Ck.style.color = "Yellow";             Check.innertext = "Congratulations, the study number is available!";           } else {check.style.color = "red";                        Check.innertext = "You have entered a number already exists, please re-enter!";        }}}} break;            Verify name Case 2:text = document.getElementById ("Name_input"). Value;            var check = document.getElementById ("Namecheck_label");                if (Text = = "") {Check.style.color = "red";            Check.innertext = "Name entry cannot be empty!";                } else {check.style.color = "yellow";            Check.innertext = "The name item is filled in correctly!";        } break;            Verify the password case 3:text = document.getElementById ("Passwd_rigester_input"). Value;            var check = document.getElementById ("Passwdcheck_label");                if (Text = = "") {Check.style.color = "red";            Check.innertext = "Password entry cannot be empty!"; }//PasswordThere can only be numbers, letters, and punctuation marks else if (Text.split (""). Length! = 1) {Check.style.color = "red";            Check.innertext = "There is no space in the password!"; } else {//Verify the security level of the password, pure or pure or pure punctuation is 1 levels, the letter + number is level 2, the letter or number is any one + punctuation 3-level if (Text.search (/^[ a-za-z]+$/g)! =-1) | | (Text.search (/^[0-9]+$/g)! =-1))                    {Check.style.color = "yellow";                Check.innertext = "Password security level is 1 level!";                    } else if (Text.search (/^[a-za-z0-9]+$/g)! =-1) {Check.style.color = "yellow";                    Check.innertext = "Password security level is 2 level!";                    } else {check.style.color = "yellow";                Check.innertext = "Password security level is 3 level!";        }} break;            Verify the confirmation password case 4:text = document.getElementById ("Confirmpasswd_input"). Value;    var check = document.getElementById ("Confirmpasswdcheck_label");        if (Text! = document.getElementById ("Passwd_rigester_input"). Value) {Check.style.color = "red";            Check.innertext = "Two times password input inconsistent!";                } else {check.style.color = "yellow";            Check.innertext = "Password confirmation is correct!";        } break;            Verify Grade Case 5:text = document.getElementById ("Grade_input"). Value;            var check = document.getElementById ("Gradecheck_label");                if (Text = = "") {Check.style.color = "red";            Check.innertext = "Grade entry cannot be empty!";                } else if (Text.search (/^\u7b2c{1}20\d+\u7ea7{1}$/)! =-1) {Check.style.color = "yellow";            Check.innertext = "Grade item is filled in correctly!";                } else {check.style.color = "red";            Check.innertext = "Grade Item format: Grade 20**!";        } break; Verify Professional Case 6:text = document.getElementById ("MajoR_input "). Value;            var check = document.getElementById ("Majorcheck_label");                if (Text = = "") {Check.style.color = "red";            Check.innertext = "Professional cannot be empty!";                } else if (Text.search (/^[\u4e00-\u9fa5]+[a-za-z]*$/g)! =-1) {Check.style.color = "yellow";            Check.innertext = "Professional item filled in correctly!";                } else {check.style.color = "red";            Check.innertext = "The professional item is not filled in correctly!";        } break;            Verify class Case 7:text = document.getElementById ("Class_input"). Value;            var check = document.getElementById ("Classcheck_label");                if (Text = = "") {Check.style.color = "red";            Check.innertext = "Class item cannot be empty!";                } else if (Text.search (/^[\u4e00-\u9fa5]+\d{4}$/)! =-1) {Check.style.color = "yellow";            Check.innertext = "Class item filled in correctly!"; } ELSE {Check.style.color = "red";            Check.innertext = "Class Item format: Telecom 1001!";        } break;            Verify phone Case 8:text = document.getElementById ("Phone_input"). Value;            var check = document.getElementById ("Phonecheck_label");            if (Text = = "") {break;                } else if (Text.search (/^ (\+86)? 1\d{10}$/)! =-1) {Check.style.color = "yellow";            Check.innertext = "The phone item is filled in correctly!";                } else {check.style.color = "red";            Check.innertext = "Phone item format is wrong!";    } break; }}

JS Regular expression for format validation