Run results for: concat vs spread funcking operator2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

Browser: Chrome 69

Operating system: Windows

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
concat	803344.6 Ops/sec
spread	1037090.0 Ops/sec

Tests:

concat
const a = [ {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 'asdasdasd'}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 'asdasdasd'}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 'asdasdasd'}, ] const b = [ {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 'asdasdasd'}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 'asdasdasd'}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 'asdasdasd'} ] const result = a.concat(b)
spread
const a = [ {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 'asdasdasd'}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 'asdasdasd'}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 'asdasdasd'}, ] const b = [ {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 'asdasdasd'}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 'asdasdasd'}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 15000000}, {b:1, c:2, d:3, e:4, f: {a:1, b:2}, e: false, x: 'asdasdasd'} ] const result = [...a, ...b]