Need help to create a javascript library & invoke this.wiki.xxxx() from it

[vpl.p...@gmail.com]

Hi guys,

I need a bit of help to understand how to access  getTiddler  method from a javascript library

When I develop macro (module-type) I use this.wiki. filterTiddlers  (...) methods and all works fine when I invoke this macro from a tiddler script

But I would like to develop a javascript library that is intended to be used by different macros. This library will need to access a Data Tiddler (as a DB "backend")

So I created a javascript code and set its module-type to library

The code is the following

(function(){

class Hero {

    constructor(name, level) {

var stats_tiddler_title = "Stats_report"; // a backend tiddler that contains the stats reports (as field value)

var stats_tiddler_filter = "[["+stats_tiddler_title+"]]";

var stats_tiddlers = this.wiki.filterTiddlers(stats_tiddler_filter);

        this.name = name;

        this.level = level;

console.log("   Class created. Value:"+this.level);

    }

getName() {

console.log("   getName !!!!!. Name:"+this.name);

}

}

exports.Hero = Hero;

})();

From my macro javascript I tried to call this library 

var Hero = require('$:/plugins/vpl/vpl_test_class.js').Hero;

const hero1 = new Hero('Varg', 1);

But I get the error

Uncaught TypeError: Cannot read properties of undefined (reading 'filterTiddlers')

I'm blocked .... Can someone help & guide me on the proper way to do that ?

Thanks very much for your help

Regards

[Joshua Fontany]

Much more activity at https://talk.tiddlywiki.org/. Try over there. :)