[TW5] Newbie can't call javascript macros

[Erock]

I have been learning about javascript macros recently and was trying to create a simple one to start with, but I can't seem to get it to work. I've read lots of documentation, forums, etc., but still can't seem to figure out why it won't work. Here is what I've been doing. I set up two tiddlers, JsTiddler and RunTiddler. I added a very simple javascript macro to JsTiddler, and set its type = "application/javascript" and module-type = "macro". Here is the text:

/*\
title: JsTiddler
type: application/javascript
module-type: macro
\*/
(function(){

/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";

exports.name = "jstiddler";

exports.params = [];

/*
Run the macro
*/
exports.run = function() {
    return "Hello World";
};

})();

I then created a second tiddler to import and display the macro called RunTiddler. This is its text:

<$importvariables filter="[[JsTiddler]]">
<$macrocall $name="jstiddler" />
</$importvariables>

However, when I run this, all I get is a blank tiddler.  I have tried filtering in different ways (such as using tags), but that didn't help either. I have also been able to use <<now>> and <<version>> in both <<>> and <$macrocall> syntax, so I know that my wiki can use js tiddlers. Can anyone tell me what I'm doing wrong? Thanks.

[Erock]

Well, I actually managed to figure it out soon after posting this, but the reason for the fix was a little weird so I'll document it for others. It seems that for javascript changes the tiddler doesn't automatically refresh. Instead you need to either:

• Close and reopen the page
• Click the refresh button in tiddlywiki (you can add it in the tools menu)

After that the changes should show up.

[Jed Carty]

Any javascript that you edit doesn't take effect until the entire page has been reloaded. This is an important security feature for any wiki hosted online.

[Khalfani Wadlington]

https://tiddlywiki.com/dev/static/JavaScript%2520Macros.html

Can we post that to the documentation.

I just ran into this same issue and didn't know that

[David]

Thanks for putting together this simple script.  However, it did n't work for me.  I also get a blank tiddler. 

I have tried the refresh button as well as saving and reloading the whole page.

I created a new Tiddler called "JsTiddler" and put your content in it, and set the "Type" field to "application/javascript".  In the current version of TW, I do not see a field for "module".

Then i created a new tiddler like you did to test it.  I kept the type as the default (text/vnd.tiddlywiki) and pasted in your code.

I reloaded the tw and my test tiddler is still blank.

I'm not new to JavaScript, but have an intermediate knowledge of that.  But I'm new to TW, especially macros.

[Joshua Fontany]

You have to manually add a "module-type" field and set it's value to "macro".

Here is a bare-bones example from the wiki-core (note the tiddler meta-data for this javacript macro is in a comment in the heading of the file):
https://github.com/Jermolene/TiddlyWiki5/blob/master/core/modules/macros/version.js

Best,
Joshua Fontany

[David]

Thank you Joshua!  That one worked!