I am using Visual Studios and trying to use http://davidshimjs.github.io/qrcodejs/
But I can't seem to import the library...
I just added the file to the project and tried to use it in the Book.js(View).
But it doesn't seem to work..
Am I missing any steps?
Add the qrcodejs file to a bundle in your App_Start/BundleConfig.cs and then render the bundle in the view where you need it or the default bundle in your layout file.
Also make sure the js file is in your Scripts folder.
Related
I have a project consisting of a TypeScript file and an HTML page. Currently, I am loading several libraries that the TypeScript file requires in the HTML Page by including them in tags, i.e. <script src="https://unpkg.com/tabulator-tables#4.9.3/dist/js/tabulator.min.js"></script>.
Since I would like to use the TypeScript code in other web pages without having to copy a bunch of script tags, is there a way I could load the libraries in the TypeScript file instead of in the HTML file? I tried searching it up and saw some options (for example, import and export) but just using import {Tabulator} from 'tabulator-tables'; obviously didn't work, and I'm somewhat lost.
Because you stated that you're not using any bundler, and that you don't want to use a UMD module in a <script> element, you'll need a version of tabulator-tables that is in the ES module format. It looks like the package provides one at https://unpkg.com/tabulator-tables#4.9.3/dist/js/tabulator.es2015.min.js. You can download that file locally to your project and import from it in your script like this:
import Tabulator from './relative/path/to/where/you/saved/tabulator.es2015.min.js';
You'll need to publish that downloaded module alongside your HTML file, JS file, etc. wherever you're serving the web page, and make sure that you set your own script's type attribute to module in the HTML.
I'm using VS Code with React and I wanted to try this: codepen.io/andystent/pen/GRgjBdJ?editors=0010
In the settings at codepen appear 5 links to 5 external scripts which this pen is using so it can work. I downloaded the JS from this pen, saved it in a file and imported it in /src folder, but I do not know how and where to add those 5 external scripts so my script could work. Can you please help me? How can I add external scripts to my react project? And where to add them (index.html/App.js/index.js etc)?
Let's say I have a few external javascript files (libraries, if you prefer to call them that way). Those files haven't been adapted to any of the "modern" JS functionalities, meaning that I can't import them like I'd do with some of the most common libraries nowadays (lodash, axios, etc...). The files in question have been always used as old-style import-and-use libraries (<script src="foo.js"></script>).
How can I make Webpack pack (concatenate) all those files and inject them in the head of my index.html, right before my actual bundle?
You can download 'foo.js' manually and add it to project repo. Imagine like you have a folder called 'external-libs' and you can simply import foo.js as something like following
import '../../external-libs/foo.js';
This will be enough for Webpack to append the content of foo.js to your final bundle.
Ctrl+F does not work in Ace editor because it can't load ext-searchbox.js. I see 404 when press Ctrl+F.
I found out that ext-searchbox.js is located in node_modules\ace-builds\src folder.
I would like to properly include this extension in my vendor.js bundle.
I have an Angular 2 project with a ASP.NET Core project as a server. My bundler is Webpack 2 and I use JavaScriptServices. I do not use angular-cli.
In the component where I use the editor I added two imports:
import 'brace';
import 'brace/ext/searchbox';
This import let Webpack add searchbox to my bundle.
I am using react starter kit for client side programming. It uses react and webpack. No index.html or any html to edit, all js files. My question is if I want to load a vendor js lib from cloud, how to do I do that?
It would be easy to do that in a html file. <script src="https://forio.com/tools/js-libs/1.5.0/epicenter.min.js"></script>
However, in js file, it only uses npm installed packages. How can I import the above lib with no html file? I tried import and require, they only work for local files.
update 10/21/15
So far I tried two directions, neither is ideal.
#minheq yes there is a html file sort of for react start kit. It is html.js under src/components/Html. I can put cloud lib and all its dependencies there like this:
<div id="app" dangerouslySetInnerHTML={{__html: this.props.body}} />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
<script src="https://forio.com/tools/js-libs/1.5.0/epicenter.min.js"></script>
<script src="/app.js"></script>
<script dangerouslySetInnerHTML={this.trackingCode()} />
</body>
Good news is it works, I don't need do anything else in js file, no import or require. However, now I have two jquery libs loaded in different ways. One in here, the other through npm and webpack. I wonder it will give me trouble later. The react-routing I use give me 'undefined variable' error if I type a none home path in browser window due to the server side loading I guess. So this solution is not very good.
Use webpack externals feature. This is documented as: link. "You can use the externals options for applications too, when you want to import an existing API into the bundle. I.e. you want to use jquery from CDN (separate tag) and still want to require("jquery") in your bundle. Just specify it as external: { externals: { jquery: "jQuery" } }."
However, the documentation I found a few places are all fussy about how to do this exactly. So far I have no idea how to use it to replace <script src="https://forio.com/tools/js-libs/1.5.0/epicenter.min.js"></script> in html.
externals is not intended to let you do this. It means "don't compile this resource into the final bundle because I will include it myself"
What you need is a script loader implementation such as script.js. I also wrote a simple app to compare different script loader implementations: link.
var $script = require("scriptjs");
$script("//ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js", function() {
$('body').html('It works!')
});
You can create a script tag in your JS as
$("body").append($("<script src="https://forio.com/tools/js-libs/1.5.0/epicenter.min.js"></script>"))
There is one html file that is definitely being used to serve to users with your js bundle attached. Probably you could attach the script tag into that html file
Use webpack's externals:
externals allows you to specify dependencies for your library that are
not resolved by webpack, but become dependencies of the output. This
means they are imported from the environment during runtime.
I have looked around for a solution and most of all proposals were based on externals, which is not valid in my case.
In this other post, I have posted my solution: https://stackoverflow.com/a/62603539/8650621
In other words, I finished using a separate JS file which is responsible for downloading the desired file into a local directory. Then WebPack scans this directory and bundles the downloaded files together with the application.