Run results for: Remove items from array vs from objects

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0

Browser: Firefox 134

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Tests:

Splice (first item)
const a = [{id: "a"}, {id: "b"}, {id: "c"}, {id: "d"}, {id: "e"}, {id: "f"},{id: "g"},{id: "h"},{id: "i"},{id: "j"},{id: "k"},{id: "l"}]; const indexToRemove = a.findIndex(i => i === "a"); const b = a.splice(indexToRemove, 1);
Splice (last item)
const a = [{id: "a"}, {id: "b"}, {id: "c"}, {id: "d"}, {id: "e"}, {id: "f"},{id: "g"},{id: "h"},{id: "i"},{id: "j"},{id: "k"},{id: "l"}]; const indexToRemove = a.findIndex(i => i === "l"); const b = a.splice(indexToRemove, 1);
Filter (first item)
const a = [{id: "a"}, {id: "b"}, {id: "c"}, {id: "d"}, {id: "e"}, {id: "f"},{id: "g"},{id: "h"},{id: "i"},{id: "j"},{id: "k"},{id: "l"}]; const b = a.filter(item => item.id !== "a")
Filter (last item)
const a = [{id: "a"}, {id: "b"}, {id: "c"}, {id: "d"}, {id: "e"}, {id: "f"},{id: "g"},{id: "h"},{id: "i"},{id: "j"},{id: "k"},{id: "l"}]; const b = a.filter(item => item.id !== "l")
Remove object key (first)
const a = { a: {key: true}, b: {key: true}, c: {key: true}, d: {key: true}, e: {key: true}, f: {key: true}, g: {key: true}, h: {key: true}, i: {key: true}, j: {key: true}, k: {key: true}, l: {key: true} } a.a = undefined
Remove object key (last)
const a = { a: {key: true}, b: {key: true}, c: {key: true}, d: {key: true}, e: {key: true}, f: {key: true}, g: {key: true}, h: {key: true}, i: {key: true}, j: {key: true}, k: {key: true}, l: {key: true} } a.l = undefined