Package resolution when importing with ES module

[WangNianyi2001]

What is the issue about?

• [ ] Bug
• [ ] Feature request
• [x] Usage question
• [ ] Documentation
• [ ] Contributing / Development

What part(s) of Essentia.js is involved?

• [x] essentia.js-core (vanilla algorithms)
• [ ] essentia.js-model (machine learning algorithms)
• [ ] essentia.js-plot (plotting utility module)
• [ ] essentia.js-extractor (typical algorithm combinations utility)

Description

This is not really an unsolvable problem, but it did take me a while to figure the thing out, so I think it'd be helpful to write a issue of solution here for others to search for later.

So if you're using NPM and your project is in ES module flavor, the correct way to initialize Essentia should be:

import EssentiaPkg from 'essentia.js';
const { Essentia, EssentiaWASM: { EssentiaWASM } } = EssentiaPkg;
const essentia = new Essentia(EssentiaWASM);

Don't know why EssentiaWASM is wrapped in one more layer, but it is what it is. My installed version is essentia.js@0.1.3.

[jmarcosfer]

Thanks so much @WangNianyi2001!

Importing is a bit awkward for now indeed, so it's good to have this here.