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How to write data dojo type in ReactJS

Getting Started with Data Dojo Type in ReactJS

If you're a budding programmer learning the ropes of ReactJS, it's always a good idea to learn about various aspects and features that the library offers. Today, we're going to delve into a concept known as 'data dojo type'. Now, you might be thinking, "What in the world is data dojo type?" Don't worry; by the end of this blog, you'll understand what it is and how to write it in ReactJS.

Breaking Down 'Data Dojo Type'

Before we dive into the coding part, let's break down what 'data dojo type' is. Imagine you're a martial arts student (dojo is a term for a martial arts training place), and you're learning different techniques (data types) from your sensei (ReactJS). To be a master, you need to understand and apply these techniques accurately.

In technical terms, 'data dojo type' is an attribute used in Dojo Toolkit, a JavaScript library, to declare classes or widgets. But what does this have to do with ReactJS? Well, some developers use this concept to manage the state and props in ReactJS, making it a handy technique to learn.

Understanding State and Props

Let's think of state and props in terms of our martial arts dojo. Props (short for properties) are like the basic rules and techniques you learn from your sensei. They're passed down to you and remain the same, no matter what. On the other hand, the state is like your progress in the dojo. It changes and evolves as you learn and practice more.

In ReactJS, 'props' are read-only components that must not be changed, while 'state' is mutable and can be updated over time.

Writing Data Dojo Type in ReactJS

Now that we understand what 'data dojo type' is and how it relates to state and props in ReactJS, let's get into writing it.

Consider a simple scenario: You're building a webpage that displays a welcome message to the user, and the message changes based on the time of day. Here's how you could handle this in ReactJS:

class WelcomeMessage extends React.Component {
  constructor(props) {
    this.state = {date: new Date()};

  render() {
    const hour =;
    let message = '';

    if (hour < 12) {
      message = 'Good Morning';
    } else if (hour < 18) {
      message = 'Good Afternoon';
    } else {
      message = 'Good Evening';

    return (
      <h1>{message}, {}!</h1>

  <WelcomeMessage name='John Doe' />,

In the above example, gets the current hour, and based on that, the message changes. We also have a 'name' prop that gets passed to the WelcomeMessage component when it's rendered.


Congratulations! You've now got a basic understanding of how to write data dojo type in ReactJS. Just like in a dojo, the key to mastering this is practice. So, go ahead and experiment with different states and props and see the dynamic changes that you can bring to your webpages.

Remember, learning to code is like learning a new language, or in our case, a new martial art. It might seem overwhelming at first, but with patience, persistence, and practice, you'll soon be performing coding 'katas' with ease. Happy coding!