Resolving the Cannot destructure property Error in Vue.js

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Understanding the Problem

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This is where the problem begins. The error occurs because while destructuring the second parameter, it's attempting to access properties of undefined. This means that the way the signUp function is being called does not match its expected parameters.

Why is username Undefined?

The reason username is coming up as undefined is that the first parameter of your signUp function is designated as _, which means it's not being utilized. Thus, when the function is invoked, signUp does not properly receive the payload with the properties you intended to destructure.

Quick Points to Remember:

Destructuring requires the target object to exist.

When calling a method, make sure the structure of the passed parameter matches what the function expects.

Solution: Fixing the Destructuring Error

To resolve this issue, you need to modify the definition of your signUp function. Follow these steps:

Step 1: Adjust the Function Parameter

Remove the underscore _ from the parameters of signUp. This allows the first parameter to be defined correctly:

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Step 2: Use dispatch to Call the Action

If signUp is an action, it should be invoked via the dispatch method from your Vuex store. You would do this as follows:

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Step 3: Modify the Function Signature in Vuex Store

Lastly, ensure that the function signature in your Vuex store is acting on the dispatched method like so:

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Conclusion