Back ArrowExplore all kits

Show Alert Message using React

share link

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

technology logo
technology logo

Solution Kit Solution Kit  

To show alert messages using React, we use a function called alert() that displays text or messages in a dialog box that pops up on the user's screen.


Alerts are urgent interruptions requiring acknowledgment that informs the user about the current situation. This component is available under the material UI. It is short text messages businesses send to employees or customers, alerting them to the user's essential information. The primary ways that businesses can use text messaging as part of their day-to-day operations in React. Applications of the Alert dialog box is to show the alert message and return the answer in the form of yes or no, and it displays the message to warn the users, and then according to our response, the next step is processed. Developers have two different steps to display a message. One is we can create a snack bar object with the message text, and the other is to call that object's show() method to display the alert message to the user.


Here is an example of how you can show alert message using React:

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.

A simple ReactJS example to show alert

JavaScriptdotLines of Code : 47dotLicense : Strong Copyleft (CC BY-SA 4.0)

class App extends Component {
    constructor(props) {
        super(props);
        this.state = {
            value: '',
            fname:'',
        };
    }

    handleChange(event, key) {
        let state = {};
        let value = event.target.value;
        state[key] = value;
        this.setState(state);
    }

    handleSubmit(event, name) {
        console.log(name);
        event.preventDefault();
        alert('Hello: ' + this.state.fname);
    }

    render() {
        return (
            <div className="example">
                <form onSubmit={(e) => this.handleSubmit(e)}>
                    <span>Square of:</span>
                    <input type="text"
                           value={this.state.value}
                           onChange={(e) => this.handleChange(e, "value")} />
                    <span>First name:</span>
                    <input type="text"
                           value={this.state.fname}
                           onChange={(e) => this.handleChange(e, "fname")}/>
                    <input type="submit" value="Submit" />
                </form>
                <div className="preview">
                    <h1>Square of no is</h1>
                    <div>{this.state.value * this.state.value}</div>
                </div>
            </div>
        );
    }
}

export default App;

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 app.js file(remove the earlier code from app.js).
  6. Import React and Component in app.js file.
  7. Open the terminal from IDE.
  8. npm start to run the file.


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 'simple alert message using react' 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 implement show alert message using React 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 implement show alert message using React.

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'.

                      Support

                      1. For any support on kandi solution kits, please use the chat
                      2. For further learning resources, visit the Open Weaver Community learning page.

                      See similar Kits and Libraries

                      Open Weaver – Develop Applications Faster with Open Source

                      kandi

                      Community and Support

                      Company

                      Follow

                      • © 2023 Open Weaver Inc.