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List all suggestions and filtered suggestions based on user input using ReactJs

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by Abdul Rawoof A R dot icon Updated: Jan 24, 2023

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Listing all suggestions and filtered suggestions based on user input using React. It can be utilized in many situations where a search or filter feature is required in a React application. Numerous instances could include:  

  • A search or filter form for a list of articles or blog posts, a product catalog, or an e-commerce website  
  • A search or filter form for a list of users or profiles  
  • A method for searching or filtering a list of occasions or activities  

You can use React and search or filter features to build interactive and data-driven applications. React can offer a strong and adaptable framework for creating user interfaces and controlling data flow across components, whether creating a standalone web or mobile app or adding search or filter features to an existing application.  


Here is an example of how you can list all suggestions and filter suggestions based on user input using ReactJs in your project: 

 


Fig 1: Preview of the output that you will get on running this code from your IDE.

Code

In this solution we're using React library.

How to list all suggestions and filtered suggestions based on user input using reactjs?

JavaScriptdotLines of Code : 68dotLicense : Strong Copyleft (CC BY-SA 4.0)

class UserMention extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      text: "",
      user_list: [
        { name: "John smith" },
        { name: "Jenna surname2" },
        { name: "Tuija rajala" }
      ],
      suggestions: []
    };
  }

  handleOnChange = e => {
    const { value } = e.target;
    const { user_list } = this.state;
    //show all user suggestions
    if (value.includes("@") && value.indexOf("@") === value.length - 1) {
      this.setState({
        text: value,
        suggestions: [...this.state.user_list]
      });
      //show matching user suggesstions
    } else if (value.includes("@") && value.length > 1) {
      const stringAfterAt = value.slice(value.indexOf("@") + 1).toLowerCase();
      const newSuggestions = user_list.filter(user => {
        return user.name.toLowerCase().includes(stringAfterAt);
      });
      this.setState({
        text: value,
        suggestions: newSuggestions
      });
      //display no users if they do not use the @ symbol
    } else {
      this.setState({
        text: value,
        suggestions: []
      });
    }
  };

  createSuggestionsList = () => {
    const { suggestions } = this.state;
    return suggestions.map(user => {
      return <div>{user.name}</div>;
    });
  };

  render = () => {
    return (
      <div>
        <input
          required
          name="text"
          value={this.state.text}
          onChange={this.handleOnChange}
          type="text"
        />
        {this.createSuggestionsList()}
        {/* <SelectInput value={this.state.suggestions}/> */}
      </div>
    );
  };
}

ReactDOM.render(<UserMention />, document.getElementById("root"));

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 library.
  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 'how to list all suggestions and filtered suggestions based on user input using 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.

  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 a list with all suggestions and filtered suggestions based on user input with 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 create an list with all suggestions and filtered suggestions based on user input with 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 dependency on kandi like 'react'.

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