Benchmark: Object vs Set - MeasureThat.net

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

const data = new Array(100);
for(let i = 0; i < 100; i++) {
  data[i] = Math.random().toString(36).slice(2); 
}
// Randomly ~20% of the values duplicates
for(let i = 0; i < 100; i++) {
  if(Math.random() < 0.2) {
    data[i] = data[Math.floor(Math.random() * 100)]; 
  }
}

const data2 = new Array(100);
for(let i = 0; i < 100; i++) {
  if(Math.random() < 0.2) {
    data2[i] = data[Math.floor(Math.random() * 100)]; 
  } else {
    data2[i] = Math.random().toString(36).slice(2);
  }
}

Tests:

Object - insertion only
const obj = {}; for(const d of data) { obj[d] = true; }
Set - insertion only
const set = new Set(); for(const d of data) { set.add(d); }
Object - insertion + reading, in operator
const obj = {}; for(const d of data) { obj[d] = true; } let hits = 0; for(const d2 of data2) { if(d2 in obj){ hits++; } }
Object - insertion + reading, indexing
const obj = {}; for(const d of data) { obj[d] = true; } let hits = 0; for(const d2 of data2) { if(obj[d2]){ hits++; } }
Set - insertion + reading
const set = new Set(); for(const d of data) { set.add(d); } let hits = 0; for(const d2 of data2) { if(set.has(d2)){ hits++; } }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object - insertion only
Set - insertion only
Object - insertion + reading, in operator
Object - insertion + reading, indexing
Set - insertion + reading

Object vs Set (version: 1)

Comparing using an object or Set for tracking unique values.

Comparing performance of: `Object - insertion only vs Set - insertion only vs Object - insertion + reading, in operator vs Object - insertion + reading, indexing vs Set - insertion + reading`

Created: 5 months ago by: Guest

Go to the latest result

Object - insertion only

Set - insertion only

Object - insertion + reading, in operator

Object - insertion + reading, indexing

Set - insertion + reading

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Object vs Set (version: 1)

Comparing using an object or Set for tracking unique values.

Comparing performance of: Object - insertion only vs Set - insertion only vs Object - insertion + reading, in operator vs Object - insertion + reading, indexing vs Set - insertion + reading

Created: 5 months ago by: Guest

Go to the latest result

Object - insertion only

Set - insertion only

Object - insertion + reading, in operator

Object - insertion + reading, indexing

Set - insertion + reading

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Comparing performance of: `Object - insertion only vs Set - insertion only vs Object - insertion + reading, in operator vs Object - insertion + reading, indexing vs Set - insertion + reading`