How to import popper.js?

Question

It seems to be a lame question, but I cannot figure it out. How to import popper.js which comes together with Bootstrap 4 beta?

I use Bower, and I've installed Bootstrap 4 beta. Now in the bower_components folder, there is the popper.js directory, which contains a few sub-folders. The problem is there is no dist folder and the popper.min.js file.

Bootstrap 4 guide links to CDN: https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js.

How to import popper.js without CDN? Where to find the popper.min.js file?

EDIT: Even if I download a zip file from the popper.js website, it contains the same files as I've downloaded from Bower.

Answer 1

TLDR: you need to download keep this file in same directory where your bootstrap.esm.js is and name it popper.esm.js and then change path inside bootstrap.esm.js from import*as Popper from"@popperjs/core" to import*as Popper from"./popper.esm.js" !!

I recently needed to use bootstrap's esm build into one of my chrome extension development project where neither external scripts using importmaps nor node_modules or any other package manager way are allowed.

I followed this link for doc

It says they have used @popperjs/core everywhere to import Popper but there are two challenges here.

1. Due to @popperjs/core can't be resolved (due to scoped package with @) and we can not use importmaps for external files in extension due to csp restriction in chrome extension development.
2. nor it can be downloaded locally as one standalone file which is whole esm build, because when I checked this file (which bootstrap docs says it uses in importmap to resolve @popperjs/core), it in turn imports many other files from its own path like import{popperGenerator,detectOverflow}from"./createPopper.js" and so on...which then you would also need to download if using like this locally.

Finally I came across this link which gives entire popper as an esm without additionally importing anything else. Looks same to me as umd but still helpful as this is the one which is needed.

and then i changed the very first line in my bootstrap.esm.min.js from import*as Popper from"@popperjs/core" to import*as Popper from"./popper.esm.js".

So no more module resolution problem and no more extra files to import which was still there when using importmaps!!! and finally it worked.

Answer 2

I ran into the same problem.

I downloaded the 'popper.min.js' file from the CDN on the bootstrap website.

See here: https://cdnjs.cloudflare.com/ajax/libs/popper.js/2.4.4/cjs/popper.min.js

Easier than compiling the project.

Important: You must include popper after jquery but BEFORE bootstrap.

Answer 3

first install propperJs from by yarn

yarn add popper.js

then you can import it like this

import Popper from "popper.js";

Answer 4

Install popper.js with spesific version number like this:

bower install popper.js@^1.16.0

Now u can find dist folder and popper.min.js file.

Answer 5

IN bootstrap 4 you need to add popper js for tooltip, I also don`t understand why bootstrap 4 includes external popper.js, It means bootstrap makes more complicated instead of easy when upgrading to the latest versions.

You can import popper js before bootstrap on angular or a simple html, Angular import would be like this

npm install popper.js --save

then go to .angular-cli.json and change the order like below.

 "scripts": [
        "../node_modules/jquery/dist/jquery.slim.min.js",
        "../node_modules/tether/dist/js/tether.min.js", 
        "../node_modules/popper.js/dist/umd/popper.js",              
        "../node_modules/bootstrap/dist/js/bootstrap.min.js"
      ],

you can also use CDN direct call popper js into your any project.

https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.5/umd/popper.js https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.5/umd/popper.min.js

Answer 6

I deleted any existing popper directories, then ran

npm install --save popper.js angular-popper

Answer 7

add popper**.js** as dependency instead of popper (only): see the difference in bold.

yarn add popper.js , instead of yarn add popper

it makes the difference.

and include the script according your needs:

as html or the library access as a dependency in SPA applications like react or angular

Answer 8

You can download and import all of Bootstrap, and Popper, with a single command using Fetch Injection:

fetchInject([
  'https://npmcdn.com/bootstrap@4.0.0-alpha.5/dist/js/bootstrap.min.js',
  'https://cdn.jsdelivr.net/popper.js/1.0.0-beta.3/popper.min.js'
], fetchInject([
  'https://cdn.jsdelivr.net/jquery/3.1.1/jquery.slim.min.js',
  'https://npmcdn.com/tether@1.2.4/dist/js/tether.min.js'
]));

Add CSS files if you need those too. Adjust versions and external sources to meet your needs and consider using sub-resource integrity checking if you're not hosting the files on your own domain or don't trust the source.

Answer 9

I really don't understand why Javascript world trying to do thing more complicated. Why not just download and include in html? Trying to have something like Maven in Java? But we have to manually include it in html anyway? So, what is the point? Maybe someday I will understand but not now.

This is how I can get it

• download & install NodeJs
• run "npm install popper.js --save"

• then I get this message

  popper.js@1.12.7 added 1 package in 1.215s

• then where is "add package" ? very informative , right? I found it in my C:\Users\surasin\node_modules\popper.js\dist

Hope this help

Answer 10

I had the same problem. Tried different approches, but this one worked for me. Read the instruction from http://getbootstrap.com/.

Copy the CDN paths of Javascripts (Popper, jQuery and Bootstrap) in same manner (it is important) as given.

<head>
//Path to jQuery
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>

////Path to Popper - it is for dropsdowns etc in bootstrap
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh" crossorigin="anonymous"></script>

//Path to bootsrap
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"></script>
</head>

Answer 11

Ways to get popper.js: Package, CDN, and Local file

The best way depends on whether you have a project with a package manager like npm.

Package manager
If you're using a package manager, use it to get popper.js like this:

npm install popper.js --save

CDN
For a prototype or playground environment (like http://codepen.io) or may just want a url to a CDN file:

https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.5/umd/popper.js https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.5/umd/popper.min.js

note: Bootstrap 4 requires the versions under the umd path (more info on popper/bs4).

Local file

Just save one of the CDN files to use locally. For example, paste one of these URLs in a browser, then Save As... to get a local copy.

https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.5/umd/popper.js https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.5/umd/popper.min.js

Answer 12

It turns out that Popper.js doesn't provide compiled files on its GitHub repository. Therefore, one has to compile the project on his/her own or download compiled files from CDNs. It cannot be automatically imported.

Answer 13

The official way to install Popper.js is trough npm, Yarn or NuGet.

Use either one of the following commands :

npm i popper.js
yarn add popper.js
PM> Install-Package popper.js

Everything is described in the library readme.

Regarding the "downloads the zip", the zip clearly states that it contains the source code of the library.

Edit:

Starting from version 1.12.0, Popper.js is available as Bower dependency.

This installation method is going to be supported only for the 1.x version of Popper.js and will be removed in 2.x.

You should migrate your dependencies management to a modern system like npm or Yarn, as Bower suggests as well.