Computed properties are by default getter-only. If you attempt to assign a new value to a computed property, you will receive a runtime warning. In the rare cases where you need a "writable" computed property, you can create one by providing both a getter and a setter:

Computed properties are updated automatically when a dependency changes, while methods are called on when something happens, like with event handling for example. Computed properties are used when outputting something that depends on something else.

Dec 19, 2024 · In this article we'll add a counter that displays the number of completed todo items, using a feature of Vue called computed properties. These work similarly to methods, but only re-run when one of their dependencies changes.

Dec 4, 2023 · Declarative code describes the intended outcome, leaving the logic on how to achieve it in separate methods or computed properties. Here is Declarative approach: <!-- In a template --> <!-- In...

None of that would be possible with a computed property. In addition to the watch option, you can also use the imperative vm.$watch API. # Computed vs Watched Property. Vue does provide a more generic way to observe and react to data changes on …

May 4, 2021 · In Vue.js, computed properties enable you to create a property that can be used to modify, manipulate, and display data within your components in a readable and efficient manner. You can use computed properties to calculate and display values based on a value or set of values in the data model.

May 29, 2023 · In Vue.js, computed properties are a powerful feature that allows developers to define derived values based on reactive data. Computed properties in Vue 3 provide an elegant and efficient way to perform calculations, transformations, …

May 31, 2023 · In Vue.js, computed properties are functions that are used to calculate and return a value based on the current state of the Vue instance. They are defined in the computed property of a Vue component and can be accessed like data properties within the template or other computed properties.