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  1. var itens = ['Lápis', 'Lapiseira','Papel', 'Pasta', 'Pilot', 'Pincel'];
  2. var arrays = {};
  3. for (var item of itens) {
  4.     var first = item[0];
  5.     if (! arrays.hasOwnProperty(first)) {
  6.         arrays[first] = [];
  7.     }
  8.     arrays[first].push(item);
  9. }
  10.  
  11. console.log(arrays);
Success #stdin #stdout 0.08s 32012KB
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{ L: [ 'Lápis', 'Lapiseira' ],
  P: [ 'Papel', 'Pasta', 'Pilot', 'Pincel' ] }
https://ideone.com/QdnYeu
language:
Node.js (node 20.14)
created:
3 years ago
visibility:
secret

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