Benchmark: Delete vs destructure for objects with mutating

Script Preparation code:

var obj = {
  a:1,
  b:2,
  c:3
}

Tests:

delete - assign
const copy = Object.assign({}, obj); delete obj.a
Rest object
const { a, ...rest } = obj;
delete - spread operator
const copy = { ...obj } delete obj.a
delete - JSON.stringify
const copy = JSON.parse(JSON.stringify(obj)); delete obj.a
simple delete
delete obj.a

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
delete - assign
Rest object
delete - spread operator
delete - JSON.stringify
simple delete

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

Browser/OS: Chrome 138 on Linux

View result in a separate tab

simple delete

75.0M/s

delete - spread operator

2.5M/s

delete - assign

2.5M/s

Rest object

2.1M/s

delete - JSON.stringify

1.8M/s

View exact numbers

Test name	Executions per second
✓ simple delete	74,984,232 Ops/sec
delete - spread operator	2,517,121 Ops/sec
delete - assign	2,458,478 Ops/sec
Rest object	2,071,314 Ops/sec
delete - JSON.stringify	1,809,472 Ops/sec

Delete vs destructure for objects with mutating (version: 1)

Measure the performance of delete versus removing a prop from an object without mutating

Comparing performance of: `delete - assign vs Rest object vs delete - spread operator vs delete - JSON.stringify vs simple delete`

Created: one year ago by: Guest

Go to the latest result

delete - assign

Rest object

delete - spread operator

delete - JSON.stringify

simple delete

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Delete vs destructure for objects with mutating (version: 1)

Measure the performance of delete versus removing a prop from an object without mutating

Comparing performance of: delete - assign vs Rest object vs delete - spread operator vs delete - JSON.stringify vs simple delete

Created: one year ago by: Guest

Go to the latest result

delete - assign

Rest object

delete - spread operator

delete - JSON.stringify

simple delete

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `delete - assign vs Rest object vs delete - spread operator vs delete - JSON.stringify vs simple delete`