我在元素上有一个“单击事件”,它首先通过window.location.href找到窗口,然后从服务器获取数据,然后呈现HTML,但是由于获取请求被取消,我没有得到期望的输出,为什么?
async function retrieveItems(category='any', sub_cat='any') {
let url;
if(category === "any") {
url = "_items/";
}
else {
url = "_items/"+category+"/"+sub_cat+"/";
}
let response = await fetch(url);
if(response.ok) {
let responseData = await response.json();
return responseData;
}
}
// Retreiving and Rendering Items on items.html
async function items_sub_cat(event) {
window.location.href = 'items.html';
let category = event.currentTarget.parentNode.parentNode.previousSibling.innerHTML;
let sub_category_name = event.currentTarget.innerHTML;
let responseData = await retrieveItems(category, sub_category_name);
renderItems(responseData, "items_by_sub_cat");
buttons();
}
let sub_category = document.getElementsByClassName("sub_category_name");
for(let i=0; i<sub_category.length; i++) {
sub_category[i].addEventListener("click", items_sub_cat);
}
在这方面有人可以帮忙吗?