PNG  IHDR;IDATxܻn0K )(pA 7LeG{ §㻢|ذaÆ 6lذaÆ 6lذaÆ 6lom$^yذag5bÆ 6lذaÆ 6lذa{ 6lذaÆ `}HFkm,mӪôô! x|'ܢ˟;E:9&ᶒ}{v]n&6 h_tڠ͵-ҫZ;Z$.Pkž)!o>}leQfJTu іچ\X=8Rن4`Vwl>nG^is"ms$ui?wbs[m6K4O.4%/bC%t Mז -lG6mrz2s%9s@-k9=)kB5\+͂Zsٲ Rn~GRC wIcIn7jJhۛNCS|j08yiHKֶۛkɈ+;SzL/F*\Ԕ#"5m2[S=gnaPeғL lذaÆ 6l^ḵaÆ 6lذaÆ 6lذa; _ذaÆ 6lذaÆ 6lذaÆ RIENDB` # `mapToGroups()` The mapToGroups method iterates through the collection and passes each value to the given callback: ```js const collection = collect([ { id: 1, name: 'A' }, { id: 2, name: 'B' }, { id: 3, name: 'C' }, { id: 4, name: 'B' }, ]); const groups = collection.mapToGroups((item, key) => [item.name, item.id]); // { // A: [1], // B: [2, 4], // C: [3], // } ``` [View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/mapToGroups.js)