Props vs State in React

What is the difference between state and props in React? In a React component, props are variables passed to it by its parent component. State, on the other hand, consists of variables that are directly initialized and managed by the component itself. The state can be initialized using props. For example, a parent component can include a child component by calling: <ChildComponent /> The parent can then pass a prop to the child component using the following syntax:...

React Components

A Brief Introduction to React Components A component is an isolated piece of the interface. In a typical blog homepage, you might find components like the Sidebar and the Blog Posts List. These components can also be composed of other components. For example, you could have a list of Blog post components, with each component representing a different blog post and having its own unique properties. React simplifies the process of creating components....

Why Data Must Be a Function in Vue

When working with Vue, you might find yourself asking the question, “Why must data be a function that returns an object, instead of just an object?” Consider the following example: <template> <a v-on:click="counter = counter + 1">{{counter}}</a> </template> <script> export default { data: function() { return { counter: 0 } } } </script> You may have also noticed that in some places, data is not a function, such as in the App component in various examples....