Escribí un código:

 const search = (what, arr) => arr.filter((el) => (onde(what,el).tag).includes((onde(what,el).input)));

pero llama a la función onde() , dos veces.

Pero no es necesario.

Cómo configurar part = onde(what,el);

dentro const search ?

por lo que solo se puede llamar una vez, como part.tag y part.input

 const search = (what, arr) => arr.filter((el) => (onde(what,el).tag).includes((onde(what,el).input))); function exibe(el, index, array) {console.log(index+" = " + el.name +" " + el.value+" " + el.other);} function onde(what,where) { array1=[]; tags =what.split(':')[0]; tag =tags.split(','); tag.forEach(element => { array1.push(where[element]);}); array['tag']=array1.join(' ').toLowerCase(); array['input']=what.split(':')[1].toLowerCase(); return array; } var array = [ { name:"string 1", value:"this A", other: "that 10" }, { name:"string 2 this", value:"those B", other: "that 20" }, { name:"string 3", value:"this C", other: "that 30" } ]; const serached = search("name,value:this",array); if (serached) { serached.forEach(exibe); } else { console.log('No result found'); }