{
  "id": 5266764,
  "title": "Your JavaScript Code Works. But How Fast Does It Scale?",
  "url": "https://urgent.news/2026/09/03/your-javascript-code-works-but-how-fast-does-it-scale",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-03T06:45:44.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/nirmitkotadiya/your-javascript-code-works-but-how-fast-does-it-scale-37al"
  },
  "original_language": "en",
  "account": null,
  "summary": "Sometimes a simple line of JavaScript can do more work than you expect. For example, array.includes() is fine for small arrays, but using it again and again with large datasets can affect performance. Things get even more interesting when it is used inside another loop. I recently wrote about this with simple JavaScript and React examples, including when using Set or Map can be a better choice.…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}