talha131
Highlight.js lets you use aliases for languages. It’s list of aliases is available here.
According to it, both of the following code blocks are similar
```javascript
```js
But in TW, js does not work for javascript, or any alias for other languages.
I looked into the source code of highlight.js plugin in TW.
After prettifying it, it was clear that aliases for each language were defined in the highlight.js source code.
Then I looked up the code of highlightblock.js.
What I understand, this line of code is used to see if language is supported by the plugin or not
if(language && hljs.listLanguages().indexOf(language) !== -1) {
listLanguages() method does not support aliases. It only returns a list of full name of supported languages.
Its API has another method getLanguage() that supports aliases. So
hljs.getLanguage('javascript') // Object
hljs.getLanguage('js') // Object
hljs.getLanguage('blahblah') // undefined
So changing the offending line with
if(language && hljs.getLanguage(language)) {
fixed the issue in my tests. I have submitted a PR with this patch
https://github.com/Jermolene/TiddlyWiki5/pull/3898/files
I am writing it in detail in here so that if my understanding is incorrect then someone would correct me and suggest a proper solution.