Display data on click in Reactjs

by vsasikalabe Updated: Jan 24, 2023

In this kit, we're going to see how to display data on click in Reactjs with simple steps.To fetch data on button click in React, Set the onClick prop on a button element. Every time the button is clicked, make an HTTP request. Update the state variables and render the data.The React onClick event handler enables you to call a function and trigger an action when a user clicks an element, such as a button, in your app. setState method allows to change of the state of the component directly using JavaScript object where keys are the name of the state and values are the updated value of that state.It occurs when there are new props , state updates and force updates.

Please check the code below,

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

Code:

In this solution we use the React library.

how to display data on click react

JavaScriptLines of Code : 66License : CC BY-SA 4.0

export default class Home extends React.Component {
    constructor() {
        super()


        this.state = {
            count: 1,
            objexm: '',
            inputValue: '',
            arr: []
        }
        this.handleClick = this.handleClick.bind(this);
        this.updateInputValue = this.updateInputValue.bind(this);
    }

    handleClick() {
        this.setState(prevState => ({
            count: prevState.count + 1,
            inputValue: [...prevState.inputValue, prevState.name],
            name: ""
        }));
    };


    createMarkup() {
        return {
            __html: this.state.inputValue
        };
    };

    updateInputValue(event) {
        let newVal = event.target.value;
        this.setState({
            name: newVal
        });
    };


    render() {
        return (

            <div className="home-header">
                <h2>{this.state.count}</h2>
                <button onClick={this.handleClick}>Add</button>

                <input type='text' name="names" value={this.state.name} onChange={this.updateInputValue} />

                {this.state.arr.map((arrs, index) => {
                    return (
                        <li
                            key={index}
                        >{arrs}</li>
                    )
                })}

<button>SEND ARR</button>
                <ul className="qwe">
                    <li dangerouslySetInnerHTML={this.createMarkup()}></li>
                </ul>
            </div>


        );
    }
}

Instructions

Follow the steps carefully to get the output easily.

Install the Node.js and React on your IDE(preferable Visual Studio Code).
Create React Application using npx create-react-app foldername.
cd foldername.
Open the folder in IDE.
Copy the code using "copy" button above and paste it in App.js file(remove the earlier code from App.js).
Import React.
Open the terminal from IDE.
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 'Display data on click in Reactjs' 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.

The solution is created in VS Code 1.73.1 version.
The solution is tested on Nodejs 16.14.2 version.
react 18.2.0 version.

Using this solution, we are able to display data on click in Reactjs 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 display data on click in Reactjs.