s = new Set();
d = {};
for (var i=0;i<10;i++){
s.add(i);
d[i]=true;
}
s.add(5)
s.has(3)
d[5] = true
d[5]
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
Set set | |
Get set | |
Set dict | |
Get dict |
Test name | Executions per second |
---|---|
Set set | 6593364.5 Ops/sec |
Get set | 6591761.0 Ops/sec |
Set dict | 7071026.0 Ops/sec |
Get dict | 7088184.5 Ops/sec |
Let's break down the provided benchmark definition and test cases.
Benchmark Definition:
The benchmark measures the performance of setting and getting values in two data structures: Set
(a collection of unique values) and Dict
(an object with key-value pairs). The script preparation code initializes an empty set (s
) and a dictionary (d
). Then, it adds 10 numbers to both sets and dictionaries using the add()
method for sets and assignment (d[i] = true
) for dictionaries.
The HTML preparation code is not provided, but it's likely used to prepare any additional context or setup required for the benchmark.
Individual Test Cases:
There are four test cases that measure the performance of specific operations:
s.add(5)
) to the Set
.Set
using the has()
method.d[5] = true
) in the Dict
.d[5]
).Options Compared:
The benchmark is comparing two approaches:
Yiiframe.js
, which provides a custom implementation for certain set and dict operations.Pros and Cons:
Native Set and Dict:
Pros:
Cons:
Library Implementation:
Pros:
Cons:
Special JS Feature:
The benchmark uses the has()
method in the Set operations. The has()
method is a part of the ECMAScript standard and has been supported since ECMAScript 5 (2011). It allows checking if an element exists within the Set.
Other Considerations:
Alternatives:
Other alternatives could include using different data structures (e.g., arrays or linked lists), alternative libraries or implementations, or even native WebAssembly code. Additionally, benchmarking performance would also depend on other factors such as hardware, software, and environmental conditions.