Q61. How to prevent unnecessary updates using setState?
You can compare the current value of the state with an existing state value and decide whether to rerender the page or not. If the values are the same then you need to re...
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Q62. What are vuex getters??
Vuex getters acts as computed properties for stores to compute derived state based on store state. Similar to computed properties, a getter's result is cached based on it...
Q63. What are hooks?
Hooks is a special JavaScript function that allows you use state and other React features without writing a class. This pattern has been introduced as a new feature in Re...
Q64. What are the caveats with vuex mutations?
Since a Vuex store's state is made reactive by Vue, the same reactivity caveats of vue will apply to vuex mutations. These are the rules should be followed for vuex mutat...
Q65. What are modules in vuex?
If you keep all state of our application in a single big state, the store can get really bloated. To solve this problem, Vuex allows us to divide our store into modules. ...
Q66. What is namespacing in vuex?
By default in Vuex, all actions, mutations, and getters inside modules are registered under the **global namespace**—meaning multiple modules can react to the exact same ...
Q67. What is the default namespace behavior in vuex?
By default, actions, mutations and getters inside modules are still registered under the global namespace. Because of that multiple modules react to the same mutation/act...
Q68. What are the principles enforced by vuex?
Vuex enforces below high-level principles, 1. The Application-level state need to be centralized in the store 2. The state should be mutated by committing mutations only(...
Q69. What is the popular choice for form handling?
`Formik` is a form library for react which provides solutions such as validation, keeping track of the visited fields, and handling form submission. In detail, You can ca...
Q70. What are the advantages of formik over redux form library?
Below are the main reasons to recommend formik over redux form library, 1. The form state is inherently short-term and local, so tracking it in Redux (or any kind of Flux...