var map = new Map();
var weakMap = new WeakMap()
var array = [];
var object = {};
map.get("0");
weakMap.get("0")
array[0]
object.a
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
Map.get | |
WeakMap.get | |
array[0] | |
object.a |
Test name | Executions per second |
---|---|
Map.get | 18151342.0 Ops/sec |
WeakMap.get | 16539971.0 Ops/sec |
array[0] | 18145922.0 Ops/sec |
object.a | 18158314.0 Ops/sec |
Overview of the Benchmark
The provided JSON represents a JavaScript microbenchmark that compares the performance of accessing elements in different data structures: Array, Object, Map, and WeakMap. The benchmark is designed to measure the execution time for each access operation.
Options Compared
Four options are compared:
array[0]
).object.a
).get()
method (map.get("0")
).get()
method (weakMap.get("0")
).Pros and Cons of Each Approach
Library Used
None (all tests use built-in JavaScript data structures).
Special JS Features or Syntax
The benchmark uses a simple syntax to access elements in each data structure:
array[0]
object.a
map.get("0")
weakMap.get("0")
These operations are straightforward and do not involve any advanced JavaScript features.
Other Alternatives
To further compare the performance of these data structures, alternative approaches could be used:
These alternatives can help provide a more comprehensive understanding of the performance characteristics of each data structure and highlight potential bottlenecks or areas for optimization.