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React Notes App

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by Abdul Rawoof A R dot icon Updated: Feb 16, 2023

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A library that is used for building composable user interfaces is React. It abstracts the DOM from us and offers a simpler programming model and better performance. It triggers the creation of reusable UI components, which present data that changes over time, and lots of people are using React as the V in MVC.


We are using a main function in this implementation: the handleClick function, which accepts one argument called value. When we trigger it once, it will return another function that can be used for the onClick React listener. The difference between onClick and handleClick is nothing but no "right name" for an event handler, and it depends on which convention we decide to follow. Likewise, onClick is the actual event, and use handleClick is the function that handles the event in React. And we are using the onClick function to assign a value to the HTML element's onClick attribute using JavaScript. onClick function can also be used for URL links by the onclick attribute defining a JavaScript action if the 'onclick' event for the link is triggered, and there is a URL present itself in the onclick attribute in React. setState() method is used to enqueue all the updates made to the component state and instructs React to re-render the component and its children with the updated state. Also, we can change the state without directly mutating it. setState component will lead to the re-rendering of the component to the state change. It will ensure that the component has been updated and calls for re-rendering in React.


Here is an example of how you can create a React notes app:

Fig : Preview of the output that you will get on running this code from your IDE.

Code

In this solution we're using React library.

I'm working on a notes app. How do I get a new Note component to be added on each button click?

Lines of Code : 34dotLicense : Strong Copyleft (CC BY-SA 4.0)

Dependent Libraries : 
class App extends Component {
  constructor(props) {
    super(props);
    this.state = {
      notes: []
    };
  }

  handleClick = () => {
    const currentNotes = this.state.notes;

    // you can have an array here that you keep the props
    // to pass into Note component
    currentNotes.push({ noteProp1: "something" });
    this.setState({
      notes: currentNotes
    });
  };

  render() {
    return (
      <div className="App">
        <h2>ReactJS Notes App</h2>
        <button className="fas fa-plus-circle" onClick={this.handleClick}>
          <i>Button</i>
        </button>
        {this.state.notes.map((noteProps, key) => (
          <Note key={key} info={noteProps} />
        ))}
      </div>
    );
  }
}

Instructions

Follow the steps carefully to get the output easily.

  1. Install the Node.js and React on your IDE(preferable Visual Studio Code).
  2. Create React Application using npx create-react-app foldername.
  3. cd foldername.
  4. Open the folder in IDE.
  5. Copy the code using "copy" button above and paste it in index.js file(you have to add two more lines at the end of your code, for that use demo as reference) and refer demo for one additional file called Note.js.
  6. Import React, Component, ReactDOM then also that additional Note.js file into index.js file.
  7. Open the terminal from IDE.
  8. npm start to run the file.


You can also refer this url 'DEMO' for getting the above output.

I hope you found this useful. I have added the link to dependent libraries, version information in the following sections.


I found this code snippet by searching for 'get new note component to be added on each button click' in kandi. You can try any such use case!

Environment Tested

I tested this solution in the following versions. Be mindful of changes when working with other versions.

  1. The solution is created in Visual Studio Code 1.73.1.
  2. The solution is tested on node v18.12.1 and npm v8.19.2.
  3. React version-18.2.0.


Using this solution, we are able to create an react notes app with simple steps. This process also facilities an easy way to use, hassle-free method to create a hands-on working version of code which would help us to create an react notes app.

Dependent Library

reactby facebook

JavaScript doticonstar image 209050 doticonVersion:v18.2.0doticon
License: Permissive (MIT)

The library for web and native user interfaces

Support
    Quality
      Security
        License
          Reuse

            reactby facebook

            JavaScript doticon star image 209050 doticonVersion:v18.2.0doticon License: Permissive (MIT)

            The library for web and native user interfaces
            Support
              Quality
                Security
                  License
                    Reuse

                      You can also search for any dependent libraries on kandi like 'react'.

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