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rspade_system/node_modules/collect.js/docs/api/mapToDictionary.md
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Co-Authored-By: Claude <noreply@anthropic.com>
2025-10-21 02:08:33 +00:00

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mapToDictionary()

Run a dictionary map over the items. The callback should return an associative array with a single key/value pair.

const collection = collect([
  { id: 1, name: 'a' },
  { id: 2, name: 'b' },
  { id: 3, name: 'c' },
  { id: 4, name: 'b' },
]);

const groups = collection.mapToDictionary(item => [item.name, item.id]);

groups.all();

// {
//   a: [1],
//   b: [2, 4],
//   c: [3],
// }

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