Is utilizing reactivity on static objects practical in Vue 3?

I am currently working with a variable rules that contains an object used for validating a form. After doing some research by reading blogs and watching tutorials, I have come to understand that ref is typically used for primitive values, while reactive is better suited for objects and arrays.

Now, my question is whether it is necessary to use reactive when the object in question is static?

What is considered the best practice in this scenario?

const rules = reactive({
      name: [
        {
          required: true,
          message: "Name is required"
          trigger: "blur"
        }
      ],
      age: [
        {
          required: true,
          message: "Age is required",
          trigger: "blur"
        }
      ],
      email: [
        {
          required: true,
          message: "Email is required",
          trigger: "blur"
        }
      ]
    });

Answer №1

According to information from a reliable source on Wikipedia

The concept of reactive programming in the realm of computing revolves around data streams and how changes are propagated.

The usefulness of implementing a reactive property lies in the necessity to monitor its alterations. If the value remains constant and does not require tracking for changes, it may be more suitable to store it as an immutable variable instead of a reactive one.

Here's a simple guideline:

Do I need to track changes to this variable?

  • If yes, then consider making it reactive
  • If no, then storing it in an immutable variable (e.g., using const) might be sufficient

To bolster protection against unauthorized modifications, you can utilize Object.freeze to make objects immutable:

const rules = Object.freeze({
      name: [
        {
          required: true,
          message: "Name is required"
          trigger: "blur"
        }
      ],
      age: [
        {
          required: true,
          message: "Age is required",
          trigger: "blur"
        }
      ],
      email: [
        {
          required: true,
          message: "Email is required",
          trigger: "blur"
        }
      ]
    });

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