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This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including @extra-lists/subsets. Try it out:
const lists = require('extra-lists');
var x = [['a', 'b'], [1, 2]];
[...lists.subsets(x)].map(a => [[...a[0]], [...a[1]]]);
var x = [['a', 'b', 'c'], [1, 2, 3]];
[...lists.subsets(x)].map(a => [[...a[0]], [...a[1]]]);
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awaitany promise instead of using callbacks (example)- create your own embedded node.js snippets
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