Tengo una matriz que tiene diferentes ubicaciones y elementos.
[ {"location": "north", "items" : ["IT1", "IT2"]}, {"location": "south", "items" : ["IT1", "IT2"]}, {"location": "north", "items" : ["IT3", "IT4"]} ]Quiero eliminar los campos de ubicación duplicados y agregar la propiedad de elementos del duplicado para lograr esto:
[ {"location": "north", "items" : ["IT1", "IT2", "IT3", "IT4"]}, {"location": "south", "items" : ["IT1", "IT2"]} ]¿Cómo puedo hacerlo con vainilla JS?
Al adaptar ¿Cómo agrupar o fusionar esta matriz de objetos en javascript? para acumular matrices en lugar de números, este es el resultado:
var arr = [{ "location": "north", "items": ["IT1", "IT2"] }, { "location": "south", "items": ["IT1", "IT2"] }, { "location": "north", "items": ["IT3", "IT4"] } ]; var finalArr = arr.reduce((m, o) => { var found = m.find(p => p.location === o.location); if (found) { found.items = found.items.concat(o.items); } else { m.push(o); } return m; }, []); console.log(finalArr)Espero que te funcione
var data = [ {"location": "north", "items" : ["IT1", "IT2"]}, {"location": "south", "items" : ["IT1", "IT2"]}, {"location": "north", "items" : ["IT3", "IT4"]} ]; const result = data.filter((thing, index, self) => index === self.findIndex((t) => ( t.location === thing.location )) ) console.log(result);Cree un objeto con claves como ubicación y valores como elementos agregados.
const process = (arr, track = {}) => { arr.forEach((obj) => { if (track[obj.location]) { track[obj.location] = { ...track[obj.location], items: obj.items.concat(track[obj.location].items), }; } else { track[obj.location] = { ...obj }; } }); return Object.values(track); }; const data = [ { location: "north", items: ["IT1", "IT2"] }, { location: "south", items: ["IT1", "IT2"] }, { location: "north", items: ["IT3", "IT4"] }, ]; console.log(process(data));