x = 49.745232942 * 49.745232942
x = 49.745232942 ** 2
x = Math.pow(49.745232942, 2)
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
Multiply | |
Exponentiation | |
Math.pow |
Test name | Executions per second |
---|---|
Multiply | 539001536.0 Ops/sec |
Exponentiation | 1317603840.0 Ops/sec |
Math.pow | 1260297088.0 Ops/sec |
I'll explain the benchmark in detail.
The provided JSON represents a JavaScript microbenchmarking test case, where users can compare the performance of different approaches to calculate the square of a number.
What is tested?
Three test cases are defined:
x = 49.745232942 * 49.745232942
) to calculate the square of a number.**
) to calculate the square of a number (x = 49.745232942 ** 2
).Math.pow()
function from JavaScript's built-in Math library to calculate the square of a number (x = Math.pow(49.745232942, 2)
).Options compared
These three approaches are compared in terms of their performance, measured by the number of executions per second.
Pros and Cons of each approach:
**
) is a concise way to calculate squares, but it may not work correctly for negative numbers or complex numbers.Math.pow()
function is a robust way to calculate squares, as it handles various input types correctly, including negative numbers and complex numbers.Library usage
None of these test cases explicitly use any external libraries. The Math.pow()
function is part of the JavaScript standard library.
Special JS feature/syntax
No special JavaScript features or syntax are used in this benchmark. It only uses standard JavaScript operators and functions.
Other alternatives
If you wanted to compare other approaches, you could consider:
These alternatives would require additional code changes and may not be as straightforward to implement as the existing benchmark.