const offices = [
{id: 512, name: 'Austin'},
{id: 8348, name: 'Boise'},
{id: 312, name: 'Chicago'},
{id: 313, name: 'Detroit'},
{id: 53540, name: 'Gotham'},
{id: 678, name: 'New York'},
];
// Remove fake office
const id = 53540;
const officeIndex = offices.findIndex(office => office.id === id);
const realOffices = [...offices.slice(0, officeIndex), ...offices.slice(officeIndex+1)]
console.log(realOffices)
/*
{id: 512, name: "Austin"}
{id: 8348, name: "Boise"}
{id: 312, name: "Chicago"}
{id: 313, name: "Detroit"}
{id: 678, name: "New York"}
*/