Regular Expression JavaScript Verification Form

Write a code about using a regular expression to verify the form. It will be used later.

Function checkform (){
VaR null_regu =/^ [] * $ /;
VaR age_regu =/^ [1-9] [0-9] $ /;
VaR tel_regu =/^ [0-9] * (-) {0, 1} [0-9] {8, 11} $ /;
VaR email_regu =/^ [/W] + [/W-/.] * @ ([/W] +/.) + [/W] + $ /;
VaR qq_regu =/^ (/d +) {6, 12 }/;
If (New Regexp (null_regu). Test (myform. Name. Value )){
Alert ("name cannot be blank! ");
Return false;
} Else if (! New Regexp (age_regu). Test (myform. Age. Value )){
Alert ("enter the correct age! ");
Return false;
} Else if (New Regexp (null_regu). Test (myform. xueli. Value )){
Alert ("cannot be blank ");
Return false;
} Else if (New Regexp (null_regu). Test (myform. sp. Value )){
Alert ("professional cannot be blank ");
Return false;
} Else if (New Regexp (null_regu). Test (myform. School. Value )){
Alert ("the school cannot be blank ");
Return false;
} Else if (New Regexp (null_regu). Test (myform. Time. Value )){
Alert ("the graduation time cannot be blank ");
Return false;
} Else if (! New Regexp (tel_regu). Test (myform. Tel. Value )){
Alert ("enter the correct phone number so that we can contact you! ");
Return false;
} Else if (! New Regexp (email_regu). Test (myform. Email. Value )){
Alert ("Incorrect email format! ");
Return false;
} Else if (! New Regexp (qq_regu). Test (myform. QQ. Value )){
Alert ("your QQ entered incorrectly ");
Return false;
} Else {
Return true;
}
}