"Utilizing Bootstrap's dropdown.js script independently: A Step-by-Step Guide

Has anyone been able to successfully use the Bootstrap dropdown.js component without integrating the entire Bootstrap library? I've attempted it, but haven't had any luck so far.

Upon reading the documentation, it appears that the dropdown.js component relies on Popper, and I've located the dropdown.js source file on GitHub.

However, it seems that dropdown.js has numerous dependencies:

import * as Popper from '@popperjs/core'

import {
  defineJQueryPlugin,
  getElement,
  getElementFromSelector,
  isDisabled,
  isElement,
  isVisible,
  isRTL,
  noop,
  getNextActiveElement,
  typeCheckConfig
} from './util/index'
import EventHandler from './dom/event-handler'
import Manipulator from './dom/manipulator'
import SelectorEngine from './dom/selector-engine'
import BaseComponent from './base-component'

I'm unsure of how to proceed with these dependencies. I've attempted removing them, but I keep encountering errors indicating that variables later in the file are undefined.

Answer №1

If you want to implement a dropdown functionality, you can follow these steps. First, import the Dropdown module and initialize it.

import { Dropdown } from "bootstrap";

var itemList = [].slice.call(document.querySelectorAll('.dropdown-toggle'))
var dropdownItems = itemList.map(function (item) {
    return new Dropdown(item)
})

Answer №2

Creating a custom dropdown functionality can be challenging. Dropdown.js relies on functions within popper.js and the bootstrap library for its implementation.

If you are interested in alternatives to bootstrap for dropdown menus, you might want to explore chosen.js, which utilizes jQuery. By customizing the CSS in the source files, you can tailor the appearance to meet your preferences.

Alternatively, you could develop your own vanilla JavaScript dropdown from scratch.

If you have a strong preference for dropdown.js but require a standalone version, one option is to use developer tools to deconstruct it and create your own customized version.

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