JQuery Form Validation

1. Determine if the text is empty:

1  $ (". Commonverify"). blur (function() {2        if($.trim (this). Val ()) = = ') {3            $ ("#tips"). HTML ("cannot be empty"); 4            $ (this). focus ();} 5     });

$.trim () is the parentheses around which the string is removed.

2. Determine the phone number:

1    //determine if the phone number is correct2$ (". Mobil"). Blur (function(){3         if(! ($.trim ($ ( This). val ()) = = ")){4             if(!$( This). Val (). Match (/^1[3|4|5|8][0-9]\d{4,8}$/)){5$( This). focus ();6$ ("#tips"). HTML ("Phone number error");7}Else{8$ ("#tips"). HTML ("");9             }Ten}Else{ One$( This). focus (); A$ ("#tips"). HTML ("cannot be empty"); -         } -     }); the    

3. Determine if the postal code is correct:

1     //determine if the ZIP code is correct2$ ("#postalCode"). Blur (function(){3        if(! ($.trim ($ ( This). val ()) = = ")){4            if(!$( This). Val (). Match (/^[1-9]\d{5}$/)){5$( This). focus ();6$ ("#tips"). HTML ("ZIP code error: 6 digits expected");7}Else{8$ ("#tips"). HTML ("");9            }Ten}Else{ One$( This). focus (); A$ ("#tips"). HTML ("cannot be empty"); -        } -});

4. Determine if the ID card is correct:

1$ ("#idCard"). Blur (function() {2         varIdcard = $ ("#idCard"). Val ();3         varBo =/^ (\d{6}) (18|19|20)? (\d{2}) ([01]\d) ([0123]\d) (\d{3}) (\d| X)? $/. Test (Idcard);4         varYear = IDCARD.SUBSTR (6, 4);5         varmonth = Idcard.substr (10, 2);6         varDay = Idcard.substr (12, 2);7 8         if(! ($.trim ($ ( This). val ()) = = ")){9             if(Bo = =false|| Month > 12 | | Day > 31) {Ten  One$ ("#tips"). HTML ("Please enter the correct ID number!") "); A}Else{ -$ ("#tips"). HTML (""); -             } the}Else{ -$( This). focus (); -$ ("#tips"). HTML ("cannot be empty"); -         } +});

5. Determine the bank card number:

1$ ("#bankCard"). Blur (function(){2         if(! ($.trim ($ ( This). val ()) = = ")){3             if(!$( This). Val (). Match (/^\d{19}$/)){4$( This). focus ();5$ ("#tips"). HTML ("Malformed, should be 19 digits");6}Else{7$ ("#tips"). HTML ("");8             }9}Else{Ten$( This). focus (); One$ ("#tips"). HTML ("cannot be empty"); A         } -  -})

JQuery Form Validation