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Javascript - Promises

Broken Promises - James Snell, NearForm - YouTube

During this training, we'll do this command to trace async event

node --trace-event-categories=v8,async_hooks code.js

First example​

// When is javascript running?
setInterval(() => {
  for (var n = 0; n < 1e9; n++) {}
  console.log('test');
}, 500)