[英]Reactjs disable button onclick realtime
I have the following code in my project and I need to disable the wislist button on click realtime.我的项目中有以下代码,我需要实时禁用 wislist 按钮。 I was able to disable it but it's disabled after reloading the page.I need to do that just after the button is clicked.
我能够禁用它,但它在重新加载页面后被禁用。我需要在单击按钮后立即执行此操作。
This is my js这是我的js
const talProps = useAddWishlistItem({
childSku: item.sku,
sku: item.sku,
query: WishlistPageOperations,
mutation: wishlistItemOperations,
product
});
const {
handleAddToWishlist,
isAddToCartDisabled,
hasError,
isItemAdded
} = talProps;
This is my button这是我的按钮
<Button
className={classes.btnWishlist}
onClick={handleAddToWishlist}
disabled={isItemAdded}>
<img className={classes.WishlistIcon} src={WishlistIcon}/>
</Button>
isItemAdded is returned from useAddWishlistItem. isItemAdded 是从 useAddWishlistItem 返回的。
useAddWishlistItem.js使用AddWishlistItem.js
export const useAddWishlistItem = props => {
const {mutation, query, product} = props;
const {mutations} = mutation;
const {addProductToWishlist} = mutations;
const {queries} = query;
const {getCustomerDetails} = queries;
const productType = product.__typename;
const [quantity] = useState(INITIAL_QUANTITY);
const {data, err, load} = useQuery(getCustomerDetails);
let wishListId;
if (data) {
const {customer} = data;
const {wishlist} = customer;
wishListId = wishlist.id;
}
const getIsItemAdded = (product) =>{
for (let i=0; i< data.customer.wishlist.items.length;i++){
if (data.customer.wishlist.items[i].product.url_key === product.url_key){
return true;
}
}
}
const [addItemsToWishlist, { error, loading:isAddSimpleLoading }] = useMutation(addProductToWishlist);
const handleAddToWishlist = useCallback(async () => {
const payload = {
item: product,
productType,
quantity
};
const variables = {
wishListId,
parentSku: payload.item.sku,
product: payload.item,
quantity: payload.quantity,
sku: payload.item.sku
}
try {
await addItemsToWishlist({
variables
});
} catch {
return;
}
}, [addItemsToWishlist, product, productType, quantity, wishListId]);
const isItemAdded = useMemo(
() => getIsItemAdded(product),
[ product]
)
return {
handleAddToWishlist,
hasError: !!error,
isAddToCartDisabled:
isAddSimpleLoading,
isItemAdded
};
};
Please help请帮忙
isItemAdded
will only be recomputed if and only if product
changed. isItemAdded
仅当且仅当product
更改时才会重新计算。 It should also be considered if data
has changed by adding it as a dependency in useMemo()
.还应考虑
data
是否已通过将其添加为useMemo()
的依赖项而发生更改。
const getIsItemAdded = (product, data) => {
for (let i=0; i< data.customer.wishlist.items.length;i++){
if (data.customer.wishlist.items[i].product.url_key === product.url_key){
return true;
}
}
return false;
}
const isItemAdded = useMemo(
() => getIsItemAdded(product, data),
[product, data] // add data
)
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