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Viewsfacing this error in react "TypeError: Cannot read properties of undefined (reading 'find')"
I'm facing the "TypeError: Cannot read properties of undefined (reading 'find')" issue. I attached the code. Thank you in Advance
switch (action.type) {
case "CART_ADD_ITEM":
const newItem = action.payload;
const existItem = state.cartItems.find(
(item) => item._id === newItem._id
);
const cartItems = existItem
? state.cart.cartItems.map((item) =>
item._id === existItem._id ? newItem : item
)
: [...state.cart.cartItems, newItem];
return {
...state,
cart: {
...state.cart,
cartItems,
},
};
·
Juan Pablo Isaza
1 answers
Answer question0
It seems like your array has some empty slots. So attempting to check item.id will throw an error. Just check that the item exists first.
const existItem = test.find((item) => {
if (item) item._id === newItem._id;
});
·
Juan Pablo Isaza
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