Guidelines for integrating Pinia seamlessly into Vue 3 components

Question

Guidelines for integrating Pinia seamlessly into Vue 3 components

How should Pinia's store be correctly used in Vue 3 components?

Option A

const fooStore = useFooStore();

function bar() {
  return fooStore.bar
}

const compProp = computed(() => fooStore.someProp)

Option B

function bar() {
  return useFooStore().bar
}

const compProp = computed(() => useFooStore().someProp())

Queries:

Is there a difference between the two ways of calling the store?
In Option A, can I guarantee that the values from the store are up to date?
Could it be that Option B is less optimal performance-wise?
What is considered the best approach?

javascript vue.js pinia

Answer 1

Answer №1

Avoid using Vue composables in random places as it is considered a poor practice. These should ideally be used directly within the setup block, unless specified otherwise by the composable's implementation. Pinia store composables, however, do not have this restriction and can be utilized anywhere once Pinia is initialized.

By utilizing defineStore, Pinia creates store composables instead of store objects to address circular dependencies and race conditions. This approach also allows for custom Pinia instances to be used. When useFooStore is nested inside another store, it must be called directly within the appropriate context, such as an action function. However, when used within a component, like in the setup block or lifecycle hooks, this issue does not arise.

In terms of practicality, there is no significant variance between these approaches. Option A is favored due to the fact that a single useFooStore call consumes fewer characters and resources compared to multiple calls.

Answer 2

Avoid using Vue composables in random places as it is considered a poor practice. These should ideally be used directly within the setup block, unless specified otherwise by the composable's implementation. Pinia store composables, however, do not have this restriction and can be utilized anywhere once Pinia is initialized.

By utilizing defineStore, Pinia creates store composables instead of store objects to address circular dependencies and race conditions. This approach also allows for custom Pinia instances to be used. When useFooStore is nested inside another store, it must be called directly within the appropriate context, such as an action function. However, when used within a component, like in the setup block or lifecycle hooks, this issue does not arise.

In terms of practicality, there is no significant variance between these approaches. Option A is favored due to the fact that a single useFooStore call consumes fewer characters and resources compared to multiple calls.

Guidelines for integrating Pinia seamlessly into Vue 3 components

Answer №1

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