こんにちは、フォームを検証するためのスクリプトを作成しました。あとは、日付が過去のものではないことを確認するだけです。substr のセットを使用しましたが、機能していないようです。誰か助けてください。以下は、日付部分が下の方にある私のコードです。
function validateForm() {
// this part of the script will collate all errors into one should the user leave an input blank
var Fname=document.forms["myForm"]["fname"].value;
var Lname=document.forms["myForm"]["lname"].value;
var address=document.forms["myForm"]["addr1"].value;
var postcode=document.forms["myForm"]["pcode"].value;
var email=document.forms["myForm"]["email"].value;
var number=document.forms["myForm"]["tel"].value;
var date=document.forms["myForm"]["mydate"].value;
if (Fname==null || Fname=="" ||Lname==null || Lname=="" ||address==null || address=="" ||!postcode||!email||!number||( myForm.sex[0].checked == false ) && ( myForm.sex[1].checked == false )||(myForm.age[0].checked == false )&&(myForm.age[1].checked == false )&&(myForm.age[2].checked == false )&&(myForm.age[3].checked == false )&&(myForm.age[4].checked == false )||!date)
{
alert("Please make sure all fields are filled or checked correctly out ");
return false;
}
//end of collating script
//start of postcode script
var regPostcode = /^[a-zA-Z]{1,2}\d[\dA-Za-z]? \d[a-zA-Z]{2}$/;
if (!postcode.match(regPostcode))
{
alert("That Post Code is incorrect, correct way mk4 4tr");
return false;
}
//end of postcode script
//start of email script
var regEmail =/^\S+@\S+\.\S+$/;
if (!email.match(regEmail))
{
alert("That email is incorrect");
return false;
}
// end of email script
// start of phone number script
var phonestring = /^(?:0|\+44)[12378]\d{8,9}$/;
if (!number.match(phonestring))
{
alert(" incorrect,correct format 01908234874");
return false;
}
// end of phone script
//start of gender script
if ( ( myForm.sex[0].checked == false ) && ( myForm.sex[1].checked == false ) )
{
alert ( "Please choose your Gender: Male or Female" );
return false;
}
// end of gender script
//start of age group script
if((myForm.age[0].checked == false )&&(myForm.age[1].checked == false )&&(myForm.age[2].checked == false )&&(myForm.age[3].checked == false )&&(myForm.age[4].checked == false )){
alert("please select an age group");
return false;
}
// end of age script
//start of datefield
var dateformat=/^(?:(?:31\/(?:0[13578]|1[02])|(?:29|30)\/(?:0[13-9]|1[012])|(?:0[1-9]|1\d|2[0-8])\/(?:0[1-9]|1[0-2]))\/[2-9]\d{3}|29\/02\/(?:[2-9]\d(?:0[48]|[2468][048]|[13579][26])|(?:[2468][048]|[3579][26])00))$/;
if (!date.match(dateformat))
{
alert("format incorrect use dd/mm/yyyy make sure you are entering correct days to the month remember 30 days have september, april, june & november, only 28 days in february unless leap year next is 2016");
return false;
}
var today = new Date();
var courseYear =string.substr(6,4) // use substr or substring to capture the last four digits
var courseMonth =string.substr(3,2) // use substr or substring to capture the four and fifth digits
var courseDay = string.substr(0,2)// use substr or substring to capture the first and second digits
var dateToCompare = new Date(courseYear, courseMonth, courseDay);
if (dateToCompare < today) {
alert("this date is in the past");
return false; }
//end of date field
else
{ alert(" Thank you a member of our team will get back to you shortly");
return true;}
}