Update TagInput.md
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---
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title: TagInput
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tags: visual,input,intermediate
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tags: input,visual,state,intermediate
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---
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Renders an input field to add tags.
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Renders a tag input field.
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- Define a `TagInput` component and use `React.useState()` hook to initialize an array with tags passed as `props`.
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- Use `Array.prototype.map()` on collected nodes to render the list of tags.
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- Define the `addTab` method, which will be executed on pressing the `Enter` key.
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- `addTab` method uses the `setTabs` method to add the new tag using the spread (`...`) operator to prepend the existing tags and adds the new tag at the end of the tags array.
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- Define the `removeTab` method, which will be executed on clicking the delete icon in the tag.
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- Use `Array.prototype.filter()` in `removeTab` method to remove the tag using the `index` of the tag to filter it out from tags array.
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- Define the `addTags` method, which will be executed on pressing the `Enter` key.
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- The `addTags` method uses the `setTabs` method to add the new tag using the spread (`...`) operator to prepend the existing tags and adds the new tag at the end of the `tags` array.
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- Define the `removeTags` method, which will be executed on clicking the delete icon in the tag.
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- Use `Array.prototype.filter()` in `removeTags` method to remove the tag using the `index` of the tag to filter it out from `tags` array.
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```css
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.tag-input {
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display: flex;
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align-items: flex-start;
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flex-wrap: wrap;
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min-height: 48px;
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width: 480px;
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padding: 0 8px;
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border: 1px solid rgb(214, 216, 218);
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border: 1px solid #d6d8da;
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border-radius: 6px;
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}
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.tag-input input {
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flex: 1;
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border: none;
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@ -31,17 +28,15 @@ Renders an input field to add tags.
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font-size: 14px;
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padding: 4px 0 0;
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&:focus {
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outline: transparent;
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outline: transparent;
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}
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}
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#tags {
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display: flex;
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flex-wrap: wrap;
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padding: 0;
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margin: 8px 0 0;
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}
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.tag {
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width: auto;
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height: 32px;
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@ -56,11 +51,9 @@ Renders an input field to add tags.
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margin: 0 8px 8px 0;
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background: #0052cc;
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}
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.tag-title {
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margin-top: 3px;
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}
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.tag-close-icon {
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display: block;
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width: 16px;
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@ -81,36 +74,32 @@ function TagInput(props) {
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const [tags, setTags] = React.useState(props.tags);
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const removeTags = indexToRemove => {
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setTags([...tags.filter((_, index) => index !== indexToRemove)]);
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}
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};
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const addTags = event => {
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if (event.target.value !== '') {
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if (event.target.value !== "") {
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setTags([...tags, event.target.value]);
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event.target.value = '';
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event.target.value = "";
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}
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}
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};
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return (
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<div className='tag-input'>
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<ul id='tags'>
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<div className="tag-input">
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<ul id="tags">
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{tags.map((tag, index) => (
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<li key={index} className='tag'>
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<span className='tag-title'>{tag}</span>
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<span className='tag-close-icon'
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onClick={() => removeTags(index)}
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>
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<li key={index} className="tag">
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<span className="tag-title">{tag}</span>
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<span className="tag-close-icon" onClick={() => removeTags(index)}>
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x
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</span>
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</li>
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))}
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</ul>
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<input
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type='text'
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onKeyUp={event =>
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event.key === 'Enter' ? addTags(event) : null
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}
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placeholder='Press enter to add tags'
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type="text"
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onKeyUp={event => (event.key === "Enter" ? addTags(event) : null)}
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placeholder="Press enter to add tags"
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/>
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</div>
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)
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);
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}
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```
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