[Fixed] Facing Error: Uncaught RangeError – Maximum call stack size exceeded – Javascript

The Problem:

When attempting to add an item to the cart in a React application using Redux Toolkit, an error occurs: "Uncaught RangeError: Maximum call stack size exceeded". The investigation points towards an infinite recursion within the handleAddCart function in Product.js. Despite attempts to resolve the issue, a solution has not been found.The Redux Toolkit is currently being used for state management in the application. Assistance is sought.

The Solutions:

Solution 1: Fix the Infinite Recursion

The issue in your code is that there’s an unintentional infinite recursion happening within the `handleAddCart` function in the `Product.js` file. You are calling `handleAddCart()` within the `handleAddCart()` function, which creates an infinite loop.

To fix this, you need to replace the line `dispatch(handleAddCart(item));` with `dispatch(addToCart(item));`. The `addToCart` action is defined in the `cartSlice`, and it is the correct action to dispatch when adding an item to the cart.

Here’s the corrected code for the `handleAddCart` function:

const handleAddCart = (item) => {
  dispatch(addToCart(item)); // Corrected line
};

With this change, you will no longer have the infinite recursion error, and clicking the "Add to Cart" button should work as expected.

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Solution 2: Check your Dispatch Function

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In the Product.js file, inside the handleAddCart function, the dispatch function is incorrectly used. Instead of dispatching the action, it’s dispatching the handleAddCart function itself, leading to an infinite loop:

const handleAddCart = (item) => {
  dispatch(handleAddCart(item)); // Incorrect usage
};

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To fix this issue, you should dispatch an action object with the correct action type and payload:

const handleAddCart = (item) => {
  dispatch({ type: 'addToCart', payload: item }); // Correct usage
};

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This way, the reducer associated with the 'addToCart' action type will be triggered, and the item will be added to the cart correctly.

Video Explanation: