choosebumps
v1.13.7
Published
A dropdown so simple it will give you choose-bumps! Written in pure vanillajs
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choose-bumps
A dropdown so simple it will give you choose-bumps! Written in pure vanillajs
Inspiration
Have you ever wanted a simple dropdown library that doesn't depend on bloated frameworks? Well i did! Have fun :)
Demo
You can find a small demo here.
Installation
You can get it on npm.
npm install choosebumps --save
Or bower, too.
bower install choosebumps --save
If you're not using either package manager, you can use choosebumps
by downloading the files in the dist
folder.
Including the JavaScript
Place choosebumps
in the end of <body>
.
Including the CSS
Place dist/choosebumps.css
or dist/choosebumps.min.css
in your document.
Usage
Choosebumps provides the easiest possible API to make dropdowns breeze in your applications.
ChooseBumps(element,options?)
element
can either be a string (selector) or an HTMLElement
(not a jQuery element)
You can provide options
to customize choosebumps
. Here's an overview of the default values.
ChooseBumps(element,{
placeholder: 'Choose',
items: [],
minlength: 0,
search: false,
searchfields: '',
noresults: '',
multiple: false,
template: '{{data}}',
tagtemplate: null, //inherits from template if null
selectedtemplate: null, //inherits from template if null
onselect: null,
onremove: null,
onadd: null,
categorize: null
});
The following functions are supported on the returned instance
cb.select(item);
cb.remove(item);
cb.reset();
The options/functions are detailed below. All the options can be set at initialization or anytime later when you feel for it(even if choosebumps
is open or whatever)
options.items
By default choosebumps
has no items. You can add items either by sending them in to the options at initialization:
var cb = ChooseBumps('#cb',{
items: [1,2,3,4]
});
or anytime later by setting items
for the returned choosebumps
instance:
var cb = ChooseBumps('#cb');
//Some lines later...
cb.items = [5,6,7];
You can also send in a string(URL) which will be fetched either dynamically when searching or when the property is being set.
If you want search dynamically with choosebumps
replace the part that should be changed in the URL with {{query}}
. It will then make a new call everytime the searchphrase changes.
items = 'https://www.yourawsomepage.com/api/user?q={{query}}' //will fetch this url and replace {{query}} with the users input
It is also possible to send in a function which will be called dynamically. The function recieves 2 arguments: function(query, callback)
. Simply call the callback function with your result when you are done.
items = function(query, cb) {
//Do some fetching or whatever here...
//Query is the users input (if search = true else null)
cb(RESULTARRAY) //call the callback function with the result as parameter when you are done!
}
options.items
accepts an array, string(url) or function as input and ignores all other types.
options.processing
If you need to preprocess the fetched data before passing it to choosebumps
you can do it with the options.processing
property. You can set it at initialization:
var cb = ChooseBumps('#cb',{
processing: function(fetched_data) {
//Do some stuff with your data here and pass it on...
return fetched_data.map(function(enrty) {
return {
firstname: entry.firstname,
lastname: entry.lastname
};
});
}
});
or anytime later by setting processing
for the returned choosebumps
instance:
var cb = ChooseBumps('#cb');
//Some lines later...
cb.processing = function Your_function(){};
options.processing
accepts a function as input and ignores all other types.
options.placeholder
By default choosebumps
has "Choose"
as the placeholder text. You can change the placeholder text either by sending them in to the options at initialization:
var cb = ChooseBumps('#cb',{
placeholder: 'Choose your force now!'
});
or anytime later by setting placeholder
for the returned choosebumps
instance:
var cb = ChooseBumps('#cb');
//Some lines later...
cb.placeholder = 'Have you choosen already?';
options.placeholder
accepts a string as input and ignores all other types.
options.noresults
If you are using the options.search
property, you can show a "no results" text if the current query doesn't return any results.
By default options.noresults
is not set. You can change the noresults text either by sending them in to the options at initialization:
var cb = ChooseBumps('#cb',{
noresults: 'Did not find any results for {{query}}'
});
or anytime later by setting noresults
for the returned choosebumps
instance:
var cb = ChooseBumps('#cb');
//Some lines later...
cb.noresults = 'Did not find any results for {{query}}';
Hint {{query}}
gets replaced with the current search term.
options.noresults
accepts a string as input and ignores all other types.
options.search
By default choosebumps
has disabled search
. You can activate it either by sending it to the options at initialization:
var cb = ChooseBumps('#cb',{
search: true
});
or anytime later by setting search
for the returned choosebumps
instance:
var cb = ChooseBumps('#cb');
//Some lines later...
cb.search = false;
When searching, choosebumps
will look through each property of each item in items
. (If item is an object)
If you want to define what choosebumps
should look for remember to set options.searchfields
.
options.search
accepts anything as input and checks the input for its thruthiness.
options.minlength
By default choosebumps
has minlength of 0 which means it will start searching if the length of the input is longer than 0. You can change it either by sending it to the options at initialization:
var cb = ChooseBumps('#cb',{
minlength: 2
});
or anytime later by setting minlength
for the returned choosebumps
instance:
var cb = ChooseBumps('#cb');
//Some lines later...
cb.minlength = 5;
options.minlength
accepts a number as input and sets the value to 0 for all other types.
options.searchfields
(only relevant if items
are objects)
By default choosebumps
searches through each property in all items
. You can define wich fields should be searched by sending a string in to the options at initialization:
var cb = ChooseBumps('#cb',{
searchfields: 'firstname lastname adress' //Space separated string
});
or anytime later by setting searchfields
for the returned choosebumps
instance:
var cb = ChooseBumps('#cb');
//Some lines later...
cb.searchfields = 'firstname lastname' //Space separated string
options.searchfields
accepts a string as input and splits its content by space. All other types are ignored
options.multiple
With options.multiple
you can allow selection of multiple items.
By default choosebumps
has disabled multiple
selection. You can activate it either by sending it in to the options at initialization:
var cb = ChooseBumps('#cb',{
multiple: true
});
or anytime later by setting multiple
for the returned choosebumps
instance:
var cb = ChooseBumps('#cb');
//Some lines later...
cb.multiple = false;
options.multiple
accepts anything as input and checks the input for its thruthiness.
options.template
The templating in choosebumps
is inspired by the moustache library. All variables can be rendered into view by putting the key of the object between {{
and }}
. This does also work for nested object. Be aware that all variables must be prefixed with data.
var obj = {
name: {
first: 'Boba',
last: 'Fett'
}
};
'{{data.name.first}} {{data.name.last}}' --- renders ---> 'Boba Fett'
By default choosebumps
has {{data}}
as the template (Works for array of string or numbers). You can change it either by sending it in to the options at initialization:
var cb = ChooseBumps('#cb',{
template: '{{data.name}}'
});
or anytime later by setting multiple
for the returned choosebumps
instance:
var cb = ChooseBumps('#cb');
//Some lines later...
cb.template = '{{data.name.last}}';
options.template
accepts a string as input and ignores all other values.
options.tagtemplate
(only if options.multiple
is true)
options.tagtemplate
can be used to set a custom template for the selected item rendering when multiple item selection is enabled.
It works the same way as options.template
--> see documentation further up.
If options.tagtemplate
is not set, it will inherit the template from options.template
.
options.selectedtemplate
options.selectedtemplate
can be used to set a custom template for the selected item rendering.
It works the same way as options.template
--> see documentation further up.
If options.selectedtemplate
is not set, it will inherit the template from options.template
.
options.categorize
With options.categorize
you can categorize the items by string.
If i want to categorize by lastname with the following options.items
set.
[
{
name: {
last: 'Doe',
first: 'John'
}
}
]
You would set options.categorize
= 'name.last'
.
You can activate it either by sending it in to the options at initialization:
var cb = ChooseBumps('#cb',{
categorize: 'name.last'
});
or anytime later by setting categorize
for the returned choosebumps
instance:
var cb = ChooseBumps('#cb');
//Some lines later...
cb.categorize = null;
options.categorize
accepts a string or null as input and ignores all other types.
options.onselect
(Callback)
With options.onselect
you can attach a callback to the select event.
The callback function will get 1 parameter with the selected item.
You can activate it either by sending it in to the options at initialization:
var cb = ChooseBumps('#cb',{
onselect: function(item){
//Woho, item here...
}
});
or anytime later by setting onselect
for the returned choosebumps
instance:
var cb = ChooseBumps('#cb');
//Some lines later...
cb.onselect = null;
options.onselect
accepts a function or null as input and ignores all other types.
options.onremove
(Callback)
With options.onremove
you can attach a callback to the remove event.
The callback function will get 1 parameter with the selected item.
You can activate it either by sending it in to the options at initialization:
var cb = ChooseBumps('#cb',{
onremove: function(item){
//Woho, item here...
}
});
or anytime later by setting onremove
for the returned choosebumps
instance:
var cb = ChooseBumps('#cb');
//Some lines later...
cb.onremove = null;
options.onremove
accepts a function or null as input and ignores all other types.
options.onadd
(Callback)
With options.onadd
you can attach a callback to the add event (works with search mode only).
Add gets triggered when pressing enter and no other item is selected.
The callback function will get 1 parameter with the typed text.
You can activate it either by sending it in to the options at initialization:
var cb = ChooseBumps('#cb',{
onadd: function(value){
//Woho, value here...
}
});
or anytime later by setting onadd
for the returned choosebumps
instance:
var cb = ChooseBumps('#cb');
//Some lines later...
cb.onadd = null;
options.onadd
accepts a function or null as input and ignores all other types.
choosebumps.select
(Function)
With choosebumps.select
you can programmaticaly set the selected item.
The function will take the item to be selected as parameter. Only items that are in options.items
can be selected! (Unless items is an url which get items dynamically)
If the parameter is null, reset gets called!
You can call it on the returned choosebumps
instance:
var cb = ChooseBumps('#cb',{
items: [1,2,3,4]
});
//Some lines later...
cb.select(4);
choosebumps.remove
(Function)
With choosebumps.remove
you can programmaticaly remove a selected item.
The function will take the item to be removed from selection as parameter. Only items that are selected can be removed!
If the parameter is null, reset gets called!
You can call it on the returned choosebumps
instance:
var cb = ChooseBumps('#cb',{
items: [1,2,3,4]
});
//Some lines later...
cb.remove(4);
choosebumps.reset
(Function)
With choosebumps.reset
you can programmaticaly remove all selected items.
You can call it on the returned choosebumps
instance:
var cb = ChooseBumps('#cb',{
items: [1,2,3,4]
});
//Some lines later...
cb.reset();
Great shoutout to Kent C. Dodds for providing great tutorials on how to write an open source library