Node.js 18

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console.log(process.version);
v18.20.8

// each batch runs in its own node process, so nothing carries between them
const rows = [{ id: 1, name: 'ann' }, { id: 2, name: 'bob' }];
console.log(rows.map(r => `${r.id}: ${r.name}`).join('\n'));
1: ann
2: bob

// node 18 made fetch, structuredClone and the test runner built in
console.log('fetch:', typeof fetch);
console.log('structuredClone:', typeof structuredClone);
console.log('node:test:', typeof require('node:test'));
fetch: function
structuredClone: function
node:test: function