Run results for: Custom omit method, with delete

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.0.0 Safari/537.36

Browser: Chrome 101

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
With Object and Set -> filter	392887.0 Ops/sec
With Object and delete	1260629.0 Ops/sec

Script Preparation code:

var black = 'black'
var green = 'green'
var orange = 'orange'
var red = 'red'
var darkRed = 'darkRed'
var blue = 'blue'
var lightBlue = 'lightBlue'
var navy = 'navy'

var basePalette = {
	black,
  green,
  orange,
  red,
  darkRed,
  blue,
  lightBlue,
  navy
}

Tests:

With Object and Set -> filter
function omit(keys, obj) { exclude = new Set(keys); return Object.fromEntries(Object.entries(obj).filter(e => !exclude.has(e[0]))); } omit(['orange','red', 'darkRed'], basePalette);
With Object and delete
function omit(keys, obj) { var copied = Object.assign({}, obj); for (let n of keys) delete copied[n]; return copied; } omit(['orange','red', 'darkRed'], basePalette);

Run results for: Custom omit method, with delete

With Object and Set -> filter

With Object and delete