TagInput react Code Snippet in 2024


Last Updated: 13 May 2024

Renders a tag input field.

  • Define a TagInput component and use the useState() hook to initialize an array from tags.
  • Use on the collected nodes to render the list of tags.
  • Define the addTagData method, which will be executed when pressing the Enter key.
  • The addTagData method calls setTagData to add the new tag using the spread (...) operator to prepend the existing tags and add the new tag at the end of the tagData array.
  • Define the removeTagData method, which will be executed on clicking the delete icon in the tag.
  • Use Array.prototype.filter() in the removeTagData method to remove the tag using its index to filter it out from the tagData array.
.tag-input { display: flex; flex-wrap: wrap; min-height: 48px; padding: 0 8px; border: 1px solid #d6d8da; border-radius: 6px; } .tag-input input { flex: 1; border: none; height: 46px; font-size: 14px; padding: 4px 0 0; } .tag-input input:focus { outline: transparent; } .tags { display: flex; flex-wrap: wrap; padding: 0; margin: 8px 0 0; } .tag { width: auto; height: 32px; display: flex; align-items: center; justify-content: center; color: #fff; padding: 0 8px; font-size: 14px; list-style: none; border-radius: 6px; margin: 0 8px 8px 0; background: #0052cc; } .tag-title { margin-top: 3px; } .tag-close-icon { display: block; width: 16px; height: 16px; line-height: 16px; text-align: center; font-size: 14px; margin-left: 8px; color: #0052cc; border-radius: 50%; background: #fff; cursor: pointer; }
const TagInput = ({ tags }) => { const [tagData, setTagData] = React.useState(tags); const removeTagData = indexToRemove => { setTagData([...tagData.filter((_, index) => index !== indexToRemove)]); }; const addTagData = event => { if ( !== '') { setTagData([...tagData,]); = ''; } }; return ( <div className="tag-input"> <ul className="tags"> {, index) => ( <li key={index} className="tag"> <span className="tag-title">{tag}</span> <span className="tag-close-icon" onClick={() => removeTagData(index)} > x </span> </li> ))} </ul> <input type="text" onKeyUp={event => (event.key === 'Enter' ? addTagData(event) : null)} placeholder="Press enter to add a tag" /> </div> ); };
ReactDOM.render( <TagInput tags={['Nodejs', 'MongoDB']} />, document.getElementById('root') );

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