Run results for: Compare Nulling, undefining and deleting of Javascript Object vs Map

Test name	Executions per second
✓ null Object	35,127,784 Ops/sec
undefined Object	27,062,332 Ops/sec
null map	21,746,662 Ops/sec
delete map	19,961,482 Ops/sec
undefined map	18,462,650 Ops/sec
delete object	1,983,989 Ops/sec

null Object

const map1 = new Map()
map1.set('a', 999);
map1.set('b', 3000);

const a = {
 }  
     a.a= 999;
     a.b= 3000;
a.a = null;
  a.b = null;

undefined Object

const map1 = new Map()
map1.set('a', 999);
map1.set('b', 3000);

const a = {
 }  
       a.a= 999;
     a.b= 3000;

a.a = undefined;
  a.b = undefined;

delete object

const map1 = new Map()
map1.set('a', 999);
map1.set('b', 3000); 

const a = {
 }  
       a.a= 999;
     a.b= 3000;

delete a.a;
   delete a.b;

null map

const map1 = new Map()
map1.set('a', 999);
map1.set('b', 3000);

const a = {
 }  
     a.a= 999;
     a.b= 3000;
map1.set('a', null);
map1.set('b', null);

undefined map

const map1 = new Map()
map1.set('a', 999);
map1.set('b', 3000);

const a = {
 }  
     a.a= 999;
     a.b= 3000;
map1.set('a', undefined);
map1.set('b', undefined);

delete map

const map1 = new Map()
map1.set('a', 999);
map1.set('b', 3000);

const a = {
 }  
     a.a= 999;
     a.b= 3000;
map1.delete('a');
map1.delete('b');

Run results for: Compare Nulling, undefining and deleting of Javascript Object vs Map

Im preparing the Object in every test as i only want to measure the actual changes

null Object

undefined Object

delete object

null map

undefined map

delete map