function validatePersonalInfo(){
var _first = document.info.fname.value;
var _last = document.info.lname.value;
var _street = document.info.street.value;
var _city = document.info.city.value;
var _zip = document.info.zip.value;
var _phone = document.info.phone.value;
var _email = document.info.email.value;
if(_first.toString() == ""){console.log("Please enter a first name.");}
if(_last.toString() == ""){console.log("Please enter a last name.");}
if(_street.toString() == ""){console.log("Please enter your street name.");}
if(_city.toString() == ""){console.log("Please enter your city.");}
if(_zip.toString() == ""){console.log("Please enter your zip.");}
if(_phone.toString() == ""){console.log("Please enter your phone number.");}
if(_email.toString() == ""){console.log("Please enter your email.");}
var checkZip = checkNum(5);
var phoneInput = document.info.phone.value;
var validPhone = false;
var validZip = false;
if(checkZip == true){
validZip = true;
}
else{
console.log("Invalid Zip Code" + validZip);
}
if(!checkPhone(phoneInput)){
console.log("Phone number is invalid." + validPhone);
}
else{
validPhone = true;
}
if(validZip && validPhone){
console.log("Your form has been verified");
}
}
// Strips hyphens out of phone number and verifies that
// phone number is valid. Any phone number in the format
// xxxxxxxxxx, xxx-xxx-xxxx, or (xxx)xxx-xxxx will be valid
function checkPhone(str){
var regexp = /^(\d{10}|\d{3}-\d{3}-\d{4}|\(\d{3}\)\d{3}-\d{4})$/;
return regexp.test(str);
}
function checkNum(length){
var zipEntry = document.info.zip.value;
var zipNum = parseInt(zipEntry, 10);
if (document.info.zip.value.length == length){
if(zipNum != 0 && isNaN(zipNum) == false){
return true;
}
else {
return false;
}
}
else {
return false;
}
}
简单讲一下js语法：
document.info.fname.value
这个js表示获取name为info表单里面name是fname的input的值。
其他方法类似。
你可以将代码复制到这里运行一把