I'm thinking about developing an Excel add-in as described here.
Would that be possible with Svelte - and do you know of any guides/help if yes?
I have looked through the video here, and I'm about worried about the usage of webpack.
Well... let's break it down
Is it possible?
Short answer: yes
Long answer: the documentation clearly states that Excel add-in still uses jQuery for logic manipulations. If your question was about Angular or react it would probably be a hard NO since those frameworks use an engine that should be included as part of solution. This kind of dependencies when dealing with plugins development are pretty hard to implement and maintain as a function of time so it's better to use very lightweight, non-core dependencies instead. Since you are asking about svelte - it is "compiled" into a bundle that contains pure code (based on your app logic). So - as long as your app rely on the load event sequence described in the docs - you are good to go.
Do you really need Webpack?
Short answer: no
Long answer: svelte can be deployed using rollup instead - which is more suitable for micro-applications (such as yours). So, if you feel that webpack (somehow) is blocking your work pipeline - just use svelete default configuration with rollup and you are ready to go
Your workflow
Create a very simple svelte app (my suggestion - try to take the example in the docs and implement it using svelte)
Test it locally (just verify it works)
Build it (you should ended up with 3 files - 1 html file in public directory and 2 other files in public/build directory - 1 js file and 1 css file (both called bundle)
Here's the tricky part - the html file does nothing - just loading the css and js files. In your case - you don't really need it
Change the bundle.css file to Home.css file
Change the bundle.js file to Home.js file and put your app inside the add-in main function
'use strict';
(function () {
Office.onReady(function() {
// Office is ready
YOUR SVELTE APP CODE SHOULD BE PLACED HERE
});
})();
Pack your add-in and test it
Technical notes
If Excel blocks the creation of new elements (using dynamic injection) - this approach will NOT work (since your entire app is generated by your js file)
Please refer to this article for more information about packing your app
Try to make your app as lightweight and small-size as possible just to avoid the risk of exceeding the limits allowed for add-ins
I am trying to use Inferno to render on the server. The documentation inferno-server and server-side-rendering does not say show to set-up babel & run the sever.
All I could find is InfernoJS Babel Plugin but noting about running it on Node.
Any help would be appreciated.
Could you explain what you mean by "Running on node"?
Inferno Babel plugin converts the JSX code into a regular JS code, which runs without problems on node (the server uses renderToString). While you are not using browser elements (document and other tools), everything should be fine.
Then you need to make a separate component for the client, which when requested will be given as a bundle along with the html page, and then using hydrate function to "cling" into webpage and bind items.
you can check my repository (although this is for TypeScript): https://github.com/MrFoxPro/inferno-isomorphic-tempalte
I'm interested in using Hot Module Replacement with a newly created React app.
Facebook Incubator's create-react-app uses Webpack 2 which can be configured to support HMR, however in order to do so, one needs to "eject" the create-react-app project.
As the documentation points out, this is a "one way" operation and cannot be reversed.
If I'm to do this, I want to know what I might be giving up. I've been unable to locate any documentation that explains the potential drawbacks of ejecting.
The current configuration allows your project to get updates from create-react-app core team. Once you eject you no longer get this.
It's kind of like pulling in bootstrap css via CDN as opposed to downloading the source code and injecting it directly into your project.
If you want more control over your webpack, there are ways to configure/customize it without ejecting:
https://www.npmjs.com/package/custom-react-scripts
anybody knows how to check if a js/css file is already included with typoscript?
Example
[Template_A.ts]
page.includeJS {
jsfile = fileadmin/Template/js/jquery-1.10.2.min.js
}
now if i got an extension with the same include e.g.
[Extension_A.ts]
page.includeJS {
jsfile = fileadmin/Template/js/jquery-1.10.2.min.js
}
Is there a way to prevent this kind of double code injection? Maybe i got another Template e.g. Template_B.ts where jquery is not included - than the Extension_A.ts has to include jquery by itself.
Kinldy
You can use the same key inside includeJS such it just gets overridden if you include the file twice.
Other than that you should put jQuery into includeJSlibs, such that it is loaded before the other JS files.
Other than that, the TS should be unique for each page. Therefore you always to make sure anyway that all resources are included in-order.
You should not include JS libs with the automatic extension TS setups. Use your documentation to tell the integrator what needs to be included and what not.
The various and independent inclusion of scripts by plugins and templates is one of the tricky points in TYPO3. As far as I know, this point cannot be managed at one single point.
There is a plugin "t3jquery" that offers to build, compress and share a common jQuery library. It also has a service to analyze other plugins for their dependencies. But this doesn't solve the problem in general, as many plugins don't check for libraries already loaded.
The most stable way is to remove all plugin's references to libraries manually in your TypoSkript. This gives you some simple additional TypoSkript lines. I use lines like these:
plugin.tx_imagecycle_pi1.file.jQueryLibrary >
plugin.tx_imagecycle_pi1.jQueryLibrary >
plugin.tx_multicontent_pi1.file.jQueryLibrary >
plugin.tx_multicontent_pi1.jQueryLibrary >
# Fluid
page.headerData.998 >
You can find the matching TypoSkript descriptors by searching for the library name in the TypoSkript browser or by greping in the plugin's source code. You will also need this if you wish to add libraries as part of content that was get by AJAX, thus separating the libs from the page content.
Here's a tut (in German): http://jweiland.net/typo3/typoscript/javascript-manuell-entfernen-oder-einbinden.html
Futher possibilities you can check:
Some plugins are written in good structure and offer to keep back their Javascript in the settings.
Some script inclusions may come rather from the static template but from a plugin, so don't forget to have a look there.
Is there a possibility to misuse grab files from a github repo as external resources in jsFiddle?
TLDR; Visit rawgit.com which will pop your files on a CDN straight from GitHub so you can use them.
Unfortunately none of the answers here worked for me. The rawgithub URL didn't seem to work as the connection gets refused. So here's a full solution that did work. Firstly in GitHub you need to click the Raw button to get the original JavaScript.
Then copy the URL from the page it takes you too. You'll notice if you try and use this directly you'll get a warning from JSFiddle.
More to the point is the browser will give you an error, e.g.:
Refused to execute script from https://raw.githubusercontent.com/nnnick/Chart.js/master/Chart.min.js' because its MIME type ('text/plain') is not executable, and strict MIME type checking is enabled.
Take that URL and visit rawgit.com. This will give you a URL of the format https://rawgit.com/nnnick/Chart.js/master/Chart.min.js which you can then use.
I've tried and tested this and it seems to work fine without issue
This is an updated answer, since the url's have changed slightly for Github... I ran into this issue and figured it out for present day. Hopefully this helps people out finding this post recently. Example for Bootstrap Slate theme from Bootswatch:
Raw file url: https://raw2.github.com/thomaspark/bootswatch/gh-pages/slate/bootstrap.css
Remove the 2. after raw: https://rawgithub.com/thomaspark/bootswatch/gh-pages/slate/bootstrap.css
That's it! :D
Nowadays JSDelivr seems to be the best option.
UPDATE
How to use or misuse github as kind of a CDN is not a thought that only benign "fiddlers" have; criminals have that thought also. Unfortunately, github, being as free and as anonymous as it is, is prone to be misused. As far as I can tell, the fact that some of the above solutions are things which are now broken, has to do with that.
Here is how I do it. It works now (Nov 2019), but it's admittedly not very convenient.
Get a github account yourself, if you don't already have one. Create a repository the name of which is identical to your github user name. That repo (and only that repo), - I'll call it the "home repo" - you can use as your web hosting service. https : // yourGithubUserName .github.io will show your home repo "raw/as it is" to the public. (Folder contents is not shown, and you HAVE TO have an index.html)
Now, if you want to use someone else's github repo in a fiddle, just copy over the complete repo to your home repo, and then just reference your copy of that repo with the src attribute of a script tag in the HTML part of the fiddle. Like this:
<head>
<script src="https://mathheadinclouds.github.io/thirdparty/esprima.js"></script>
<script src="https://mathheadinclouds.github.io/thirdparty/estraverse.browser.js"></script>
<script src="https://mathheadinclouds.github.io/thirdparty/escope.browser.js"></script>
</head>
<body></body>
Above snippet shows the HTML part of a working fiddle which is using the node modules esprima, estraverse, and escope, which is to say, the github repos of the same name. thirdparty is there because that's the name of the subfolder (in my home repo) where I put the copies.
As I said, not very convenient (lot's of copy and paste to set it all up), but that's what works for me.
And I should mention, just copy/paste might not be enough, you might have to do browserify or webpack on the referenced repo (if it was made for node, that is.)
here is the fiddle I was talking about.
OLD ANSWER
(works, but is kind of slow)
You can use requirify. It's made to enable you to require (as it is in node) on the browser command line; but it works in fiddles too, I tested it. I have no clue if it's "the best", compared to the other methods above (since I didn't go through them all and tested them), but it works.
Here is an example fiddle loading esprima (javascript parser), then escodegen (reverse javascript parser depending on esprima), then parsing and regenerating some simple javascript code.
what
require('lorem', 'ipsum')
does is, it loads the ipsum node module from npm, and puts the result into global variable named lorem. So this is only for npm modules not general github files which aren't also node modules. Shouldn't be much restriction since you can always turn it into a node module if it's your own project.
here it is
second example using same technique.
(((it's actually even simpler as shown in the fiddle. You can just put the 2 require statements right one after the other, you don't need a callback function in between (just one callback function to wait until both are loaded))))
Another possibility is to add the Git library to the cdnJS Script Repository (they write that any library that is resonably popular on GitHub will be accepted) and then use it as external resource.
Just found out: there are lots of Javascript libraries at http://jsdb.io/ and it's very easy to add new ones there--i's just a matter of entering the URL of a Github repository.
If there is a git repo in following folder structure
fiddletest/test1 (fiddletest is the repo name and test1 is a folder)
then the corresponding jsfiddle link will be
http://jsfiddle.net/gh/get/<library name>/<version>/<github user name>/fiddletest/tree/master/test1/
The folder and file structure must be like this
fiddletest(the repo name)
|____ test1
|____ demo.html
|____ demo.js
|____ demo.css
|____ demo.details
except these three files others will be ignored.
the details file should hold the fiddle details and link of external resources(if any) as follows
---
name: test fiddle repo
description: this is a test repo
resources:
- http://abc.xyz.com/abc.js
- http://abc.xyz.com/abc2.js
...
May be you have noticed the and in the fiddle link. If a fiddle is with pure js the the library name should be "library" and the version should be "pure"
In a nutshell the fiddle link to reffer to github should be in following format
http://jsfiddle.net/gh/get/<library name>/<version>/<github user name>/<repo name>/tree/<branchname>/<folder name>/
2021
Just go to github file and click "Download" button and copy URL - it will works with fetch - working example here (it not works in SO snippet - I don't know why) - example url from this file:
https://raw.githubusercontent.com/KhronosGroup/glTF-Sample-Models/master/2.0/VC/glTF-Embedded/VC.gltf