Choices.js
A lightweight, configurable select box/text input plugin. Similar to Select2 and Selectize but without the jQuery dependency.
Demo
Setup
<link rel="stylesheet" href="assets/styles/css/base.min.css">
<link rel="stylesheet" href="assets/styles/css/choices.min.css">
<script src="/assets/scripts/dist/choices.min.js"></script>
<script>
const choices = new Choices(elements);
const choices = new Choices(element);
const choices = new Choices('[data-choice']);
const choices = new Choices('.js-choice');
const choices = new Choices($('.js-choice')[0]);
const choices = new Choices(elements, {
items: [],
choices: [],
maxItemCount: -1,
addItems: true,
removeItems: true,
removeItemButton: false,
editItems: false,
duplicateItems: true,
delimiter: ',',
paste: true,
search: true,
flip: true,
regexFilter: null,
sortFilter: sortByAlpha,
sortFields: ['label', 'value'],
placeholder: true,
placeholderValue: null,
prependValue: null,
appendValue: null,
loadingText: 'Loading...',
classNames: {
containerOuter: 'choices',
containerInner: 'choices__inner',
input: 'choices__input',
inputCloned: 'choices__input--cloned',
list: 'choices__list',
listItems: 'choices__list--multiple',
listSingle: 'choices__list--single',
listDropdown: 'choices__list--dropdown',
item: 'choices__item',
itemSelectable: 'choices__item--selectable',
itemDisabled: 'choices__item--disabled',
itemChoice: 'choices__item--choice',
group: 'choices__group',
groupHeading : 'choices__heading',
button: 'choices__button',
activeState: 'is-active',
focusState: 'is-focused',
openState: 'is-open',
disabledState: 'is-disabled',
highlightedState: 'is-highlighted',
hiddenState: 'is-hidden',
flippedState: 'is-flipped',
loadingState: 'is-loading',
},
callbackOnInit: () => {},
callbackOnAddItem: (id, value, passedInput) => {},
callbackOnRemoveItem: (id, value, passedInput) => {},
callbackOnHighlightItem: (id, value, passedInput) => {},
callbackOnUnhighlightItem: (id, value, passedInput) => {},
callbackOnChange: (value, passedInput) => {},
});
</script>
Installation
npm install choices.js --save-dev
Terminology
Word | Definition |
---|
Choice | A choice is a value a user can select. A choice would be equivelant to the <option></option> element within a select input. |
Group | A group is a collection of choices. A group should be seen as equivalent to a <optgroup></optgroup> element within a select input. |
Item | An item is an inputted value (text input) or a selected choice (select element). In the context of a select element, an item is equivelent to a selected option element: <option value="Hello" selected></option> whereas in the context of a text input an item is equivelant to <input type="text" value="Hello"> |
Configuration options
items
Type: Array
Default: []
Usage: Add pre-selected items (see terminology) to text input.
Input types affected: text
Pass an array of strings:
['value 1', 'value 2', 'value 3']
Pass an array of objects:
[{
value: 'Value 1',
label: 'Label 1',
id: 1
},
{
value: 'Value 2',
label: 'Label 2',
id: 2
}]
choices
Type: Array
Default: []
Usage: Add choices (see terminology) to select input.
Input types affected: select-one
, select-multiple
Pass an array of objects:
[{
value: 'Option 1',
label: 'Option 1',
selected: true,
disabled: false,
},
{
value: 'Option 2',
label: 'Option 2',
selected: false,
disabled: true,
}]
maxItemCount
Type: Number
Default:-1
Input types affected: text
, select-multiple
Usage: The amount of items a user can input/select ("-1" indicates no limit).
addItems
Type: Boolean
Default:true
Input types affected: text
Usage: Whether a user can add items to the passed input's value.
removeItems
Type: Boolean
Default:true
Input types affected: text
, select-multiple
Usage: Whether a user can remove items (only affects text and multiple select input types).
removeButton
Type: Boolean
Default:false
Input types affected: text
, select-multiple
Usage: Whether a button should show that, when clicked, will remove an item (only affects text and multiple select input types).
editItems
Type: Boolean
Default:false
Input types affected: text
Usage: Whether a user can edit selected items (only affects text input types).
Usage: Optionally set an item limit (-1
indicates no limit).
delimiter
Type: String
Default:,
Input types affected: text
Usage: What divides each value.
duplicates
Type: Boolean
Default:true
Input types affected: text
Usage: Whether a user can input a duplicate item.
paste
Type: Boolean
Default:true
Input types affected: text
, select-multiple
.
Usage: Whether a user can paste into the input.
search
Type: Boolean
Default:true
Input types affected: text
, select-one
, select-multiple
.
Usage: Whether the dropdown list should appear above the input if there is not enough space within the browser viewport.
flip
Type: Boolean
Default:true
Input types affected: select-one
, select-multiple
.
Usage: Whether a user can filter options by searching (only affects select input types).
regexFilter
Type: Regex
Default:null
Input types affected: text
Usage: A filter that will need to pass for a user to successfully add an item.
sortFilter
Type: Function
Default:sortByAlpha
Input types affected: select-one
, select-multiple
Usage: The function that will sort choices before they are displayed (unless a user is searching). By default choices are sorted by alphabetical order.
Example:
const example = new Choices(element, {
sortFilter: function(a, b) {
return b.label.length - a.label.length;
},
};
sortFields
Type: Array/String
Default:['label', 'value']
Input types affected:select-one
, select-multiple
Usage: Specify which fields should be used for sorting.
placeholder
Type: Boolean
Default:true
Input types affected: text
, select-one
, select-multiple
Usage: Whether the input should show a placeholder. Used in conjunction with placeholderValue
. If placeholder
is set to true and no value is passed to placeholderValue
, the passed input's placeholder attribute will be used as the placeholder value.
placeholderValue
Type: String
Default:null
Input types affected: text
, select-one
, select-multiple
Usage: The value of the inputs placeholder.
prependValue
Type: String
Default:null
Input types affected: text
, select-one
, select-multiple
Usage: Prepend a value to each item added to input (only affects text input types).
appendValue
Type: String
Default:null
Input types affected: text
, select-one
, select-multiple
Usage: Append a value to each item added to input (only affects text input types).
loadingText
Type: String
Default:Loading...
Input types affected: select-one
, select-multiple
Usage: The loading text that is shown when options are populated via an AJAX callback.
classNames
Type: Object
Default:
classNames: {
containerOuter: 'choices',
containerInner: 'choices__inner',
input: 'choices__input',
inputCloned: 'choices__input--cloned',
list: 'choices__list',
listItems: 'choices__list--multiple',
listSingle: 'choices__list--single',
listDropdown: 'choices__list--dropdown',
item: 'choices__item',
itemSelectable: 'choices__item--selectable',
itemDisabled: 'choices__item--disabled',
itemOption: 'choices__item--choice',
group: 'choices__group',
groupHeading : 'choices__heading',
button: 'choices__button',
activeState: 'is-active',
focusState: 'is-focused',
openState: 'is-open',
disabledState: 'is-disabled',
highlightedState: 'is-highlighted',
hiddenState: 'is-hidden',
flippedState: 'is-flipped',
selectedState: 'is-highlighted',
}
Input types affected: text
, select-one
, select-multiple
Usage: Classes added to HTML generated by Choices. By default classnames follow the BEM notation.
callbackOnInit
Type: Function
Default:() => {}
Input types affected: text
, select-one
, select-multiple
Usage: Function to run once Choices initialises.
callbackOnAddItem
Type: Function
Default:(id, value, passedInput) => {}
Input types affected: text
, select-one
, select-multiple
Usage: Function to run each time an item is added (programmatically or by the user).
callbackOnRemoveItem
Type: Function
Default:(id, value, passedInput) => {}
Input types affected: text
, select-one
, select-multiple
Usage: Function to run each time an item is removed (programmatically or by the user).
callbackOnHighlightItem
Type: Function
Default:(id, value, passedInput) => {}
Input types affected: text
, select-multiple
Usage: Function to run each time an item is highlighted.
callbackOnUnhighlightItem
Type: Function
Default:(id, value, passedInput) => {}
Input types affected: text
, select-multiple
Usage: Function to run each time an item is unhighlighted.
callbackOnChange
Type: Function
Default:(value, passedInput) => {}
Input types affected: text
, select-one
, select-multiple
Usage: Function to run each time an item is added/removed by a user.
Methods
Methods can be called either directly or by chaining:
const choices = new Choices(element, {
addItems: false,
removeItems: false,
}).setValue(['Set value 1', 'Set value 2']).disable();
const choices = new Choices(element, {
addItems: false,
removeItems: false,
});
choices.setValue(['Set value 1', 'Set value 2'])
choices.disable();
highlightAll();
Input types affected: text
, select-multiple
Usage: Highlight each chosen item (selected items can be removed).
unhighlightAll();
Input types affected: text
, select-multiple
Usage: Un-highlight each chosen item.
removeItemsByValue(value);
Input types affected: text
, select-multiple
Usage: Remove each item by a given value.
removeActiveItems(excludedId);
Input types affected: text
, select-multiple
Usage: Remove each selectable item.
removeHighlightedItems();
Input types affected: text
, select-multiple
Usage: Remove each item the user has selected.
showDropdown();
Input types affected: select-one
, select-multiple
Usage: Show option list dropdown (only affects select inputs).
hideDropdown();
Input types affected: text
, select-multiple
Usage: Hide option list dropdown (only affects select inputs).
toggleDropdown();
Input types affected: text
, select-multiple
Usage: Toggle dropdown between showing/hidden.
setChoices(choices, value, label);
Input types affected: select-one
, select-multiple
Usage: Set choices of select input via an array of objects, a value name and a label name. This behaves the same as passing items via the choices
option but can be called after initialising Choices. This can also be used to add groups of choices (see example 2);
Example 1:
const example = new Choices(element);
example.setChoices([
{value: 'One', label: 'Label One', disabled: true},
{value: 'Two', label: 'Label Two' selected: true},
{value: 'Three', label: 'Label Three'},
], 'value', 'label');
Example 2:
const example = new Choices(element);
example.setChoices([{
label: 'Group one',
id: 1,
disabled: false,
choices: [
{value: 'Child One', label: 'Child One', selected: true},
{value: 'Child Two', label: 'Child Two', disabled: true},
{value: 'Child Three', label: 'Child Three'},
]
},
{
label: 'Group two',
id: 2,
disabled: false,
choices: [
{value: 'Child Four', label: 'Child Four', disabled: true},
{value: 'Child Five', label: 'Child Five'},
{value: 'Child Six', label: 'Child Six'},
]
}], 'value', 'label');
getValue(valueOnly)
Input types affected: text
, select-one
, select-multiple
Usage: Get value(s) of input (i.e. inputted items (text) or selected choices (select)). Optionally pass an argument of true
to only return values rather than value objects.
Example:
const example = new Choices(element);
const values = example.getValue(true);
const valueArray = example.getValue();
setValue(args);
Input types affected: text
Usage: Set value of input based on an array of objects or strings. This behaves exactly the same as passing items via the items
option but can be called after initialising Choices.
Example:
const example = new Choices(element);
example.setValue([
{value: 'One', label: 'Label One'},
{value: 'Two', label: 'Label Two'},
{value: 'Three', label: 'Label Three'},
]);
example.setValue(['Four','Five','Six']);
setValueByChoice(value);
Input types affected: select-one
, select-multiple
Usage: Set value of input based on existing Choice.
Example:
const example = new Choices(element, {
choices: [
{value: 'One', label: 'Label One'},
{value: 'Two', label: 'Label Two', disabled: true},
{value: 'Three', label: 'Label Three'},
],
});
example.setValueByChoice('Two');
clearStore();
Input types affected: text
, select-one
, select-multiple
Usage: Removes all items, choices and groups. Use with caution.
clearInput();
Input types affected: text
Usage: Clear input of any user inputted text.
disable();
Input types affected: text
, select-one
, select-multiple
Usage: Disables input from accepting new value/sselecting further choices.
enable();
Input types affected: text
, select-one
, select-multiple
Usage: Enables input to accept new values/select further choices.
ajax(fn);
Input types affected: select-one
, select-multiple
Usage: Populate options via a callback.
Example:
var example = new Choices(element);
example.ajax(function(callback) {
fetch(url)
.then(function(response) {
response.json().then(function(data) {
callback(data, 'value', 'label');
});
})
.catch(function(error) {
console.log(error);
});
});
Browser compatibility
ES5 browsers and above (http://caniuse.com/#feat=es5).
Development
To setup a local environment: clone this repo, navigate into it's directory in a terminal window and run the following command:
npm install
NPM tasks
Task | Usage |
---|
npm start | Fire up local server for development |
npm run js:build | Compile Choices to an uglified JavaScript file |
npm run css:watch | Watch SCSS files for changes. On a change, run build process |
npm run css:build | Compile, minify and prefix SCSS files to CSS |
Contributions
In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using npm scripts...bla bla bla
License
MIT License
Misc
Thanks to @mikefrancis for sending me on a hunt for a non-jQuery solution for select boxes that eventually led to this being built!