是否可以通过多个函数返回?
我有一个 jQuery on click 函数,其中有一个 $.each 循环。在 $.each 循环中,我测试各种条件,如果不满足,则显示警报消息,然后返回。这是我的代码的精简版本:
$(document).on('click', '.add-to-basket, #add-to-basket', function(e) {
var data = {
id: $(this).data('id'),
quantity: 1
};
if($('#quant').length > 0) {
data.quantity = $('#quant').val();
}
var i = 0;
var j = 0;
if($('.product-option').length > 0) {
$('.product-option').each(function(index, element) {
if($(this).is('select')) {
//check to see if this is a required select, and return if a selection has not been made.
if($(this).data("force") == 1 && $(this).val() == 0) {
AlertDialogue($(this).data("title") + " requires a selection before you can add this product to your basket.", "Required Option");
return;
}
data.opts[i++] = $(this).val();
} else if($(this).is('input[type="checkbox"]:checked')) {
data.opts[i++] = $(this).val();
//check to see if this is a required group of checkboxes, and if so at least one has been checked. If not return.
} else if($(this).is('input[type="checkbox"]')) {
if($(this).data("force") == 1 && $('input[name="' + $(this).prop("name") + '"]:checked').length == 0) {
AlertDialogue($(this).data("title") + " requires at least one option to be checked before you can add this product to your basket.", "Required Option");
return;
}
} else if($(this).is('input[type="radio"]:checked')) {
data.opts[i++] = $(this).val();
} else if($(this).is('textarea')) {
//Check to see if this is a required textarea, and if so make sure there is some text in it.
if($(this).data("force") == 1 && $.trim($(this).val()).length == 0) {
AlertDialogue($(this).data("title") + " requires text before you can add this product to your basket.", "Required Option");
return;
}
if($(this).val().length > 0) {
data.text[j].id = $(this).data("id");
data.text[j++].val = $(this).val();
}
}
});
}
//submit product to the cart
});
然而,返回只会打破 $.each 循环的那个循环,并开始下一个循环。我不仅想打破 $.each 循环,还想完全从 on click 函数返回。
- 这可能吗?
- 如果是这样,我怎样才能做到这一点?