[英]Remaking jQuery form validation
我正在嘗試通過(http://jorenrapini.com/blog/javascript/the-simple-quick-and-small-jquery-html-form-validation-solution)重新制作jQuery腳本。 該腳本正在檢查是否填充了from,否則將顯示錯誤消息。
我想做的是僅在填寫兩個表單輸入字段之一時得到錯誤消息,如果沒有一個則應該忽略它們。 表單字段被命名為“ firstinput”和“ secondinput”(您可以在代碼中看到它們的ID)。
$(document).ready(function(){
// Place ID's of all required fields here.
required = ["firstinput", "secondinput"];
// If using an ID other than #email or #error then replace it here
email = $("#email");
errornotice = $("#error");
// The text to show up within a field when it is incorrect
emptyerror = "Please fill out this field.";
emailerror = "Please enter a valid e-mail.";
$("#theform").submit(function(){
//Validate required fields
for (i=0;i<required.length;i++) {
var input = $('#'+required[i]);
if ((input.val() == "") || (input.val() == emptyerror)) {
input.addClass("needsfilled");
input.val(emptyerror);
errornotice.fadeIn(750);
} else {
input.removeClass("needsfilled");
}
}
// Validate the e-mail.
if (!/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/.test(email.val())) {
email.addClass("needsfilled");
email.val(emailerror);
}
//if any inputs on the page have the class 'needsfilled' the form will not submit
if ($(":input").hasClass("needsfilled")) {
return false;
} else {
errornotice.hide();
return true;
}
});
// Clears any fields in the form when the user clicks on them
$(":input").focus(function(){
if ($(this).hasClass("needsfilled") ) {
$(this).val("");
$(this).removeClass("needsfilled");
}
});
});
有人可以幫我解決一個問題,我真的很感激。 /花了很多時間解決這個問題的女孩:(
我會將您的for循環包裝在一個條件中,該條件評估一個或另一個是否具有值。
if($("#field1").val() == "" && $("#field2").val() == ""){
//Ignore
}else{
//Do something
}
$(document).ready(function(){
// Place ID's of all required fields here.
required = ["firstinput", "secondinput"];
// If using an ID other than #email or #error then replace it here
email = $("#email");
errornotice = $("#error");
// The text to show up within a field when it is incorrect
emptyerror = "Please fill out this field.";
emailerror = "Please enter a valid e-mail.";
$("#theform").submit(function(){
//Validate required fields
if($("#firstinput").val() != "" || $("#secondinput").val() != "")
{
for (i=0;i<required.length;i++) {
var input = $('#'+required[i]);
if ((input.val() == "") || (input.val() == emptyerror)) {
input.addClass("needsfilled");
input.val(emptyerror);
errornotice.fadeIn(750);
} else {
input.removeClass("needsfilled");
}
}
}
// Validate the e-mail.
if (!/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/.test(email.val())) {
email.addClass("needsfilled");
email.val(emailerror);
}
//if any inputs on the page have the class 'needsfilled' the form will not submit
if ($(":input").hasClass("needsfilled")) {
return false;
} else {
errornotice.hide();
return true;
}
});
// Clears any fields in the form when the user clicks on them
$(":input").focus(function(){
if ($(this).hasClass("needsfilled") ) {
$(this).val("");
$(this).removeClass("needsfilled");
}
});
});
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