function test1(){
const x = 1;
const y = 1;
const z = x + y;
return z;
}
function test1(){
return 1+1;
}
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
Var | |
No var |
Test name | Executions per second |
---|---|
Var | 1003804288.0 Ops/sec |
No var | 1005708480.0 Ops/sec |
Let's break down what's being tested in the provided JSON benchmark.
What is tested?
The benchmark measures the performance difference between two approaches:
"Var"
test case): This approach involves declaring and assigning values to variables, which can introduce overhead due to memory management and garbage collection."No var"
test case): This approach bypasses variable declaration and assignment, potentially reducing overhead by avoiding the need for memory allocation and garbage collection.Options compared
The two options being compared are:
const
or let
) vs not using variables at all.Pros and Cons of each approach:
"Var"
test case):"No var"
test case):Library usage
There is no explicit library mentioned in the provided benchmark. However, it's worth noting that some JavaScript engines may have built-in optimizations or features that could affect the performance of variable declarations and assignments.
Special JS feature or syntax
None are explicitly mentioned in this benchmark. However, if you were to explore other benchmarks, you might encounter features like:
Other alternatives
If you were to modify this benchmark or create new ones, consider exploring other options, such as:
By exploring these alternatives, you can gain a deeper understanding of how different factors influence JavaScript performance and optimize your own code for better efficiency.