Easy Tags Input Component For Bootstrap 5/4 – Tags.js

Preview:

Description:

A vanilla JavaScript (ES6) extension to Bootstrap 5 (and Bootstrap 4) that converts a multi-select box into a user-friendly tags input component.

How to use it:

1. Import the Tags.js.

import Tags from "./tags.js";

2. Initialize the library on the select element.

Tags.init("select[multiple]");

3. That’s it. It will automatically convert all select boxes with the multi attribute into a tags input where you can select options from a suggestion list while typing.

<select class="form-select" id="validationTags" multiple>
  <option selected disabled hidden value="">Choose a tag...</option>
  <option value="1" selected="selected">JavaScript</option>
  <option value="2">HTML5</option>
  <option value="3">CSS3</option>
  <option value="4">jQuery</option>
  <option value="5">React</option>
  <option value="6">Angular</option>
  <option value="7">Vue</option>
  <option value="8">Python</option>
</select>
<div class="invalid-feedback">Please select a valid tag.</div>

4. Add the data-allow-new="true" to the select box in cases where you want to add new options.

<select class="form-select" id="validationTags" multiple data-allow-new="true">
  <option selected disabled hidden value="">Choose a tag...</option>
  <option value="1" selected="selected">JavaScript</option>
  <option value="2">HTML5</option>
  <option value="3">CSS3</option>
  <option value="4">jQuery</option>
  <option value="5">React</option>
  <option value="6">Angular</option>
  <option value="7">Vue</option>
  <option value="8">Python</option>
</select>

5. Determine whether to allow new options only if they match a given regex.

<select class="form-select" id="validationTagsNew" name="tags_new[]" multiple data-allow-new="true" data-regex=".*@mycompany\.com$">
  <option disabled hidden value="">Add mail address</option>
  <option value="1" selected="selected">[email protected]</option>
  <option value="2">[email protected]</option>
  <option value="3">[email protected]</option>
</select>
<div class="invalid-feedback">Please select only @mycompany.com addresses.</div>

6. Determine whether to show all suggestions using the data-show-all-suggestions attribute.

<select class="form-select" id="validationTags" multiple data-show-all-suggestions="true">
  ...
</select>

7. Enable the close icon to clear all sections.

<select class="form-select" id="validationTags" multiple data-allow-clear="true" data-clear-label="Clear">
  ...
</select>

8. Load data from an external JSON file.

<select class="form-select" id="validationTagsJson" name="tags_json[]" multiple data-allow-new="true" data-server="demo.json" data-live-server="1" data-server-params='{"key":"val"}'>
  <option disabled hidden value="">Choose a tag...</option>
</select>

9. Set the maximum number of tags allowed to insert.

<select class="form-select" id="validationTagsJson" name="tags_json[]" multiple data-max="5" data-server="demo.json" data-live-server="1">
  <option disabled hidden value="">Choose a tag...</option>
</select>

10. Customize the separator. You can add multiple separators with |.

<select class="form-select" id="validationTagsJson" name="tags_json[]" multiple data-separator=" |," data-server="demo.json" data-live-server="1">
  <option disabled hidden value="">Choose a tag...</option>
</select>

11. Determine how many characters need to be typed to show the dropdown. Default: 1.

<select class="form-select" id="validationTagsJson" name="tags_json[]" data-suggestions-threshold="2">
  <option disabled hidden value="">Choose a tag...</option>
</select>

12. Customize the badge style and/or class.

<option value="2" data-badge-style="success" selected="selected">Banana</option>
<option value="3" data-badge-style="warning" data-badge-class="text-dark another-class">Orange</option>
<option value="4" data-badge-style="secondary">Blueberry with a very long label that pushes the menu</option>

13. Determine whether to keep suggestions open after selection. Clear on focus out. Default: false.

<option value="2" data-badge-style="success" selected="selected">Banana</option>
<option value="3" data-badge-style="warning" data-badge-class="text-dark another-class">Orange</option>
<option value="4" data-badge-style="secondary">Blueberry with a very long label that pushes the menu</option>

<select class="form-select" id="validationTagsJson" name="tags_json[]" multiple data-allow-new="true" data-server="demo.json" data-live-server="1" data-server-params='{"key":"val"}' data-keep-open="1">
  <option disabled hidden value="">Choose a tag...</option>
</select>

14. Set the debounce time. Default: 300.

<select class="form-select" id="validationTagsJson" name="tags_json[]" multiple data-max="5" data-debounce-time="500" data-server="demo.json" data-live-server="1">
  <option disabled hidden value="">Choose a tag...</option>
</select>

15. Set the debounce time. Default: 300.

<select class="form-select" id="validationTagsJson" name="tags_json[]" multiple data-max="5" data-debounce-time="500" data-server="demo.json" data-live-server="1">
  <option disabled hidden value="">Choose a tag...</option>
</select>

16. You’re also allowed to pass the options via JavaScript. Full options:

• items: An array of suggestions
• allowNew: Allows creation of new tags
• showAllSuggestions: Show all suggestions even if they don’t match. Disables validation.
• badgeStyle: Color of the badge (color can be configured per option as well)
• allowClear: Show a clear icon
• clearEnd: Place clear icon at the end
• selected: A comma separated list of selected values
• regex: Regex for new tags
• separator: A list (pipe separated) of characters that should act as separator (default is using enter key)
• max Limit to a maximum of tags (0 = no limit)
• placeholder: Provides a placeholder if none are provided as the first empty option
• clearLabel: Text as clear tooltip
• searchLabel: Default placeholder
• keepOpen: Keep suggestions open after selection, clear on focus out
• allowSame: Allow same tags used multiple times
• baseClass: Customize the class applied to badges
• addOnBlur: Add new tags on blur (only if allowNew is enabled)
• showDisabled: Show disabled tags
• hideNativeValidation: Hide native validation tooltips
• suggestionsThreshold: Number of chars required to show suggestions
• maximumItems: Maximum number of items to display
• autoselectFirst: Always select the first item
• updateOnSelect: Update input value on selection (doesn’t play nice with autoselectFirst)
• highlightTyped: Highlight matched part of the suggestion
• fullWidth: Match the width on the input field
• fixed: Use fixed positioning (solve overflow issues)
• labelField: Key for the label
• valueField: Key for the value
• queryParam: Name of the param passed to endpoint (query by default)
• server: Endpoint for data provider
• serverMethod: HTTP request method for data provider, default is GET
• serverParams: Parameters to pass along to the server
• fetchOptions: Any other fetch options (https://developer.mozilla.org/en-US/docs/Web/API/fetch#syntax)
• liveServer: Should the endpoint be called each time on input
• noCache: Prevent caching by appending a timestamp
• debounceTime: Debounce time for live server
• notFoundMessage: Display a no suggestions found message. Leave empty to disable
• onRenderItem: Callback function that returns the suggestion
• onSelectItem: Callback function to call on selection
• onClearItem: Callback function to call on clear
• onClearItem: Callback function to call on clear
• onServerResponse: Callback function to process server response. Must return a Promise
• onCanAdd: Callback function to validate item. Return false to show validation message.
• onBlur: Callback function on blur
• onFocus: Callback function on focus

items:  Array.<(Suggestion|SuggestionGroup)>,
allowNew: false,
showAllSuggestions: false,
badgeStyle: "primary",
allowClear: false,
clearEnd: false,
selected: [],
regex: "",
separator: [],
max: 0,
clearLabel: "Clear",
searchLabel: "Type a value",
keepOpen: false,
allowSame: false,
baseClass: "",
placeholder: "",
addOnBlur: false,
showDisabled: false,
hideNativeValidation: false,
suggestionsThreshold: 1,
maximumItems: 0,
autoselectFirst: true,
updateOnSelect: false,
highlightTyped: false,
fullWidth: false,
fixed: false,
labelField: "label",
valueField: "value",
queryParam: "query",
server: "",
serverMethod: "GET",
serverParams: {},
fetchOptions: {},
liveServer: false,
noCache: true,
debounceTime: 300,
notFoundMessage: "",
onRenderItem: (item, label, inst) => {
  return label;
},
onSelectItem: (item, inst) => {},
onClearItem: (value, inst) => {},
onCreateItem: (option, inst) => {},
onBlur: (event, inst) => {},
onFocus: (event, inst) => {},
onCanAdd: (text, data, inst) => {},
onServerResponse: (response) => {
  return response.json();
},

Changelog:

v1.6.8 (09/05/2023)

• Track validation classes
• Unset min-height when hiding the select

v1.6.7 (07/20/2023)

• Fix menu positioning
• Add highlightClass
• Fix optgroup regression with hasItem (+ refactor)

v1.6.6 (07/19/2023)

• Minor tweak to prevent hiding suggestion when not needed (allow css animation to work nicely)

v1.6.5 (07/18/2023)

• Add starts with feature
• Add confirm on add/clear feature
• Remove flex align from badges since it breaks truncation. Simplify positioning and remove float as well
• Fix disabled on reset
• Fix aria attributes (remove -)
• Fix setData not updating items properly

v1.6.4 (07/03/2023)

• Dynamic data server params
• event-polyfill compat

v1.6.3 (07/01/2023)

• Minor fix for BS4 when jQuery use no conflict

v1.6.2 (06/19/2023)

• Full width is now the default since the goal is to make the form work more often like a select element. This is needed to align with the use of the drop down icon taken from the select element. Full width menu now position like bootstrap (2px offset below input).
• The dropdown icon is hidden if you have a suggestionThreshold > 0 or no option
• Added a is-max-reached class, which allows for example to hide the drop icon when max is reached, providing visual feedback that the component has reached its max elements
• Fix form-select-lg/-sm styles not working anymore
• Properly dispose of tooltips
• Various code cleanup

v1.6.1 (06/17/2023)

• Fix blurry text if translateY was used
• Fix canAdd regression with server parameter

v1.6.0 (06/16/2023)

• Add support for items in config
• Revamp how single select are displayed. Use max=1 if you want to show as badges
• Make this work more like a select element except if using live server (+ add drop icon)
• Improve how same values options are dealt with
• Dark mode fixes + BS 5.3 fixes
• Remove delay after blur
• Improve clear button positioning

v1.5.24 (06/14/2023)

• Fix accessibility attributes in Firefox

v1.5.23 (06/09/2023)

• Fuzzy search
• Customizable search fields
• Improve related param field
• Customizable server data key

v1.5.22 (05/12/2023)

• placeholder respect autofirst option

v1.5.21 (05/02/2023)

• Update css + add pure css var version
• Improve server callback (pass instance, allow nested objects, check invalid callbacks)
• Add public config getter (useful in callbacks mostly)

v1.5.20 (04/27/2023)

• Remove console.log (and add a test for it)

v1.5.19 (04/27/2023)

• Don’t focus back on search input if single or max reached

v1.5.18 (04/21/2023)

• Add onBlur&onFocus callbacks

v1.5.17 (04/17/2023)

• Fix new tag not being applied when using separators

v1.5.16 (04/17/2023)

• Remove console.log

v1.5.15 (04/11/2023)

• Fix potentially undefined window.bootstrap

v1.5.14 (04/11/2023)

• Tooltips support!
• Dynamic empty message
• On create callback

v1.5.13 (03/17/2023)

• Add loadData()
• Fix max-width issue
• Refactor add on blur

v1.5.12 (03/16/2023)

• Optgroup support
• Lots of minor fixes

v1.5.10 (03/13/2023)

• Check regex only for new input
• Add custom validator with onCanAdd
• Refactoring

v1.5.9 (03/07/2023)

• Add fetch options

v1.5.8 (03/01/2023)

• Fix resize event
• Improve scroll handling
• Disabled pseudo class

v1.5.7 (02/27/2023)

• Added highlightTyped
• Added disabled option support
• Fix validation in various scenarios (mobile, native, …)
• Other minor tweaks

v1.5.6 (02/14/2023)

• Fix show menu with arrow down

v1.5.5 (02/09/2023)

• Improve fixed positioning and refactor menu positioning
• RTL support
• Fix minWidth on input

v1.5.4 (01/17/2023)

• Fix onClearItem not being triggered

v1.5.3 (01/17/2023)

• Add fixed positioning option
• Add allowSame option
• Minor tweaks

v1.5.2 (01/09/2022)

• Bootstrap 5.3 dark mode support
• Configurable query parameter

v1.5.1 (12/12/2022)

• Bugfix

v1.5.0 (11/21/2022)

• Accessibility improvements
• Refactored config system
• Added new options

v1.4.42 (11/09/2022)

• Add on blur feature + event fired on blur for custom behaviour

v1.4.41 (10/26/2022)

• Fix android support
• Add focus support

v1.4.40 (10/25/2022)

• Improve input event support
• Clicking on label now works as expected
• Android “enter” support improved

v1.4.39 (10/13/2022)

• Fix initial values from remote server
• Suggestions threshold 0 now works as expected with live server

v1.4.38 (07/05/2022)

• New badge default classes and new clear icon position flag

v1.4.37 (07/04/2022)

• Update

v1.4.36 (06/30/2022)

• Add base class option

v1.4.35 (06/22/2022)

• fix showing all suggestions

v1.4.34 (04/22/2022)

• Fix unexpected suggestions showing when max is above limit

v1.4.32 (04/19/2022)

• Fix placeholder size for non ascii chars
• Support form-select-lg and form-select-sm classes

v1.4.30/31 (04/19/2022)

• Fix input size for non ascii languages

v1.4.29 (03/18/2022)

• placeholder also works as a constructor param
• add full width feature

v1.4.28 (03/18/2022)

• Fix bounding (right and bottom)

v1.4.27 (03/18/2022)

• Fix hardcoded value

v1.4.26 (03/17/2022)

• Add keep open
• Debounce ajax calls
• Support custom columns names

v1.4.25 (03/01/2022)

• fix minor issue with overflow container

v1.4.24 (02/11/2022)

• Deal better with window borders and overflow containers
• Remove unnecessary standalone build since we don’t use the dropdown js lib

v1.4.23 (02/10/2022)

• Switch from private var/methods to _ based convention and mangle props. This allows support for safari 14.1 and improve min file size even more.

v1.4.22 (02/08/2022)

• Support multiple classes on badges

v1.4.21 (01/20/2022)

• Allow to use esc to hide suggestions
• Added some unit tests and rework some of the internals

v1.4.20 (01/20/2022)

• Fix regression for enter key

v1.4.19 (01/19/2022)

• Fix regression from input event

v1.4.18 (01/19/2022)

• Fix and refactor how max setting works

v1.4.14 (01/17/2022)

• Update

v1.4.12 (01/15/2022)

• Disable spellcheck
• Hide dropdown on validation error

v1.4.11 (01/14/2022)

• Restore the selected attribute

v1.4.10 (01/13/2022)

• Refactor resetState

v1.4.9 (01/13/2022)

• Rework single select again

v1.4.8 (01/12/2022)

• Fix event bubbling
• Rework single select

v1.4.7 (01/12/2022)

• Allow to reset state
• Fix dispose

v1.4.6 (01/10/2022)

• Add ability to reset suggestions if options are updated

v1.4.5 (01/10/2022)

• Fix suggestionsThreshold global setting if 0

v1.4.4 (01/10/2022)

• Add ability to reset suggestions if options are updated

v1.4.3 (01/10/2022)

• Disable disabled options
• Keep suggestions open if threshold is 0
• Initialize with empty list

v1.4.2 (12/29/2021)

• Fix layout issue in Firefox
• Improve bs4 close icon

v1.4.1 (12/29/2021)

• Single select support
• Internal tweaks
• Fire change events properly
• Add getInstance for bootstrap consistency

v1.4.0 (12/28/2021)

• Drastically reduced the minified file size thanks to private scope

v1.3.6 (12/28/2021)

• Support multiple separators

v1.3.5 (12/23/2021)

• Support max tags

v1.3.4 (12/23/2021)

• Allow custom separator

v1.3.3 (12/23/2021)

• fix regression

v1.3.2 (12/23/2021)

• add regex validation feature
• demo & doc update

v1.3.0/1 (12/13/2021)

• Server side support
• Honor reset

v1.2.2 (12/13/2021)

• get rid of setTimeout

v1.2.0 (11/18/2021)

• Bootstrap 4 support

v1.1.6 (11/15/2021)

• Fix remove last item (which prevents backspace from working properly)
• Improve accessibility

v1.1.5 (10/26/2021)

• Don’t allow adding same value twice
• Don’t keep focus when clicking on clear icon

v1.1.4 (08/22/2021)

• don’t use scrollIntoView

v1.1.3 (08/19/2021)

• improve clear ui
• add suggestions threshold

v1.1.2 (08/10/2021)

• Added allow clear

v1.1.1 (08/10/2021)

• Mouse should not interfere with keyboard nav

v1.1.0 (08/10/2021)

• Add show all suggestions option
• Ux improvements (show list with arrow down + better visibility for selection)
• Handle long lists (with scrollbar)

v1.0.3 (08/10/2021)

• Update

v1.0.2 (06/28/2021)

• Update