Benchmark: Inserting and Searching in Map vs Object

Script Preparation code:

var small_pojo = {};
var small_map = new Map();
var small_vals = [];

var large_pojo = {};
var large_map = new Map();
var large_vals = [];

for(let i = 0; i < 1000; i++) {
  let val = btoa(Math.random()); // randomish string
  
  small_vals.push(val);
}

for(let i = 0; i < 100000; i++) {
  let val = btoa(Math.random()); // randomish string
  
  large_vals.push(val);
}

Tests:

Insert in small Map
small_vals.forEach(v => { small_map.set(v, v); });
insert in small POJO
small_vals.forEach(v => { small_pojo[v] = v; });
Insert in large Map
large_vals.forEach(v => { large_map.set(v, v); });
Insert in large POJO
large_vals.forEach(v => { large_pojo[v] = v; });
Search in small Map
small_vals.forEach(v => { return small_map.get(v); })
Search in small POJO
small_vals.forEach(v => { return small_pojo[v]; })
Search in large Map
large_vals.forEach(v => { return large_map.get(v); })
Search in large POJO
large_vals.forEach(v => { return large_pojo[v]; })

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Insert in small Map
insert in small POJO
Insert in large Map
Insert in large POJO
Search in small Map
Search in small POJO
Search in large Map
Search in large POJO

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.151 Safari/537.36

Browser/OS: Chrome 88 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Insert in small Map	9493.8 Ops/sec
insert in small POJO	10778.4 Ops/sec
Insert in large Map	52.9 Ops/sec
Insert in large POJO	77.4 Ops/sec
Search in small Map	13540.8 Ops/sec
Search in small POJO	12164.4 Ops/sec
Search in large Map	76.8 Ops/sec
Search in large POJO	89.3 Ops/sec

Inserting and Searching in Map vs Object (version: 0)

Compares insert & search operations with Map vs. POJOs

Comparing performance of: Insert in small Map vs insert in small POJO vs Insert in large Map vs Insert in large POJO vs Search in small Map vs Search in small POJO vs Search in large Map vs Search in large POJO

Created: 3 years ago by: Guest

Jump to the latest result

Insert in small Map

insert in small POJO

Insert in large Map

Insert in large POJO

Search in small Map

Search in small POJO

Search in large Map

Search in large POJO

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A