react-shopping | : shoe : 基于react的购物车实战项目 | Frontend Framework library
kandi X-RAY | react-shopping Summary
kandi X-RAY | react-shopping Summary
:shoe:基于react的购物车实战项目
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QUESTION
i'm write react functional component, which should get some data from server. I'm use redux, but i get an error "Cannot read property 'type' of undefined"
Help me please find my mistake
This is my react component, Products.js. I think there may be errors in the export part. Also parent component Products.js (App.js) has wrapped on Provider
...ANSWER
Answered 2021-Jan-03 at 20:13dispatch
function expects redux action as an argument, not reducer. In your case:
QUESTION
when I increment single card and click add button the card or cards is successfully added to the shopping cart but when I increment two or three cards first and then click the add button the respective card item quantity count does not match with the incremented values.
the full code is here -https://github.com/sivadass/react-shopping-cart
I think the problem is in Counter.js, it's not setting the previous state when increment and add later to the shopping card
...ANSWER
Answered 2019-May-27 at 08:19The problem is that your components are all consuming the same quantity value stored in the parent via index.js
. Your shopping cart takes the last-updated count value from any Counter
and uses that to add the selected item. You need to isolate the quantity/count for each Product
.
I cloned your repo and I was able to fix this by making an update to the Product.js
component.
I gave Product.js
its own private quantity to keep track of
QUESTION
ANSWER
Answered 2018-Nov-11 at 06:20Seems to me like a lint bug. When I removed two blank lines, I didn't get any errors:
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