我在这里遇到问题。我发现全局变量每次进入Ajax都会改变。
$(document).on("keyup input", ".product-id", function () {
var id_prod = this.id.replace('prod_id_', '');
console.log('id_prod (outside ajax): ', id_prod);
var inputVal = $(this).val();
var resultDropdown = $('#result2').css({
"display": "block"
});
if (inputVal.length) {
$.ajax({
type: 'POST',
data: { term: inputVal },
url: 'backend-search-inv.php',
success: function (data) {
resultDropdown.html(data);
$(document).on("click", "#result2 p", function () {
var inv_id = $(this).text();
//console.log('inv_id: ',inv_id);
$.ajax({
type: 'POST',
data: {
term: inv_id
},
url: 'autocomplete_inv.php',
success: function (response) {
var inv_info = jQuery.parseJSON(response);
console.log('id_prod (in ajax): ', id_prod);
},
error: function () {
console.log('Unable to access database.');
}
});
}); //end of result being clicked
}
});
}
else {
resultDropdown.empty();
}
});
我不明白为什么变量id_prod
每次进入ajax都会递增。这是console.log
的屏幕截图。
请参阅屏幕快照,每次我想向id_prod = 2
输入内容时,ajax总是最终更新了id_prod = 1
,然后又自动更新了id_prod = 2
,并导致重复我的数据。
有人可以帮我吗?
答案 0 :(得分:1)
因此,基本上我只是将id_prod
声明为全局变量,并将0设置为默认值。然后,一旦id_prod
事件进入keyup input
事件,基本上就为它分配了新值。
感谢穆罕默德·优素福(Mohamed Yousef)在我自己的问题的评论部分中给出的答案!
//DECLARE id_prod as a global variable...
var id_prod = 0;
$(document).on("keyup input", ".product-id", function(){
id_prod = this.id.replace('prod_id_', '');
var inputVal = $(this).val();
var resultDropdown = $('#result2').css({"display":"block"});
if(inputVal.length){
$.ajax({
type: 'POST',
data: {term:inputVal},
url: 'backend-search-inv.php',
success: function(data){
resultDropdown.html(data);
}
});
}
else{
resultDropdown.empty();
}
});
// WHEN RESULT BEING CLICKED...
$(document).on("click", "#result2 p", function(){
var inv_id = $(this).text();
$.ajax({
type: 'POST',
data: {term:inv_id},
url: 'autocomplete_inv.php',
success: function (response) {
var inv_info = jQuery.parseJSON(response);
console.log('id_prod (in ajax): ',id_prod);
$('#prod_id_'+id_prod).val(inv_info[0]);
$('#prod_qty_'+id_prod).val(1);
$('#prod_disct_'+id_prod).val(0);
$('#prod_type_'+id_prod).val(inv_info[1]);
$('#prod_colour_'+id_prod).val(inv_info[2]);
$('#prod_price_'+id_prod).val(inv_info[3]);
$('#result2').empty();
sumPrice();
},
error: function(){
console.log('Unable to access database.');
}
});});