Run results for: slice & spread vs reduce

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36

Browser: Chrome 112

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
slice & spread	13024663.0 Ops/sec
reduce	4188327.5 Ops/sec

Tests:

slice & spread
function removeTodo(id, list) { const indexToRemove = list.findIndex((item) => item.id === id); return [...list.slice(0, indexToRemove), ...list.slice(indexToRemove + 1)]; } const id = 5; const list = [{id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 5, done: false}] const other = removeTodo(id, list)
reduce
function removeTodo(id, list) { return [...list].reduce( (acc, item) => (item.id === id ? acc : [...acc, item]), [] ); } const id = 5; const list = [{id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 1, done: false}, {id: 5, done: false}] const other = removeTodo(id, list)