Add json filter for debugging objects?

[pdehaan]

In Nunjucks there is a dump(n) filter which is basically JSON.stringify(obj, null, n) (if I understand correctly).

I'm struggling to find something similar w/ Liquid.
Closest I've found is Shopify/liquid#121 (and a couple other references to a json) filter, but I cannot seem to get that to work w/ liquidjs.

const { Liquid } = require('liquidjs');
const engine = new Liquid();

engine
    .parseAndRender('{{ name | json }}', {name: {first:'alice', last: 'poppins'}})
    .then(console.log);     // outputs '[object Object]'

const pkg = require("liquidjs/package.json");
console.log(`${pkg.name} @ v${pkg.version}`); // liquidjs @ v9.7.0

UPDATE: Ah, OK, so if I enable the Boolean strictFilters option, I get a hard error saying:

ParseError: undefined filter: json, line:1, col:1

[pdehaan]

Workaround:

engine.registerFilter('json', (v, n=0) => JSON.stringify(v, null, n));

[harttle]

maybe better to use util.inspect(), I'll see how it's done in shopify/liquid

[harttle]

🎉 This issue has been resolved in version 9.10.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[harttle]

A json filter is builtin from 9.10.0 on, see:

liquidjs/src/builtin/filters/object.ts

Lines 8 to 10 in 607a5cd

	'json': function (v: any) {
	return JSON.stringify(v)
	}