Benchmark: multiplication vs parseInt

Tests:

multiplication
const num = 10 * (10 ** 2) + 10
parseInt
const num = parseInt("10" + "10")

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
multiplication
parseInt

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):

LLMs can make mistakes. Check important info.

I'll explain the benchmark and its options.

The provided JSON represents a JavaScript microbenchmark test case on MeasureThat.net. The test compares two approaches: multiplication and using the `parseInt` function to concatenate strings and then parse them as integers.

**Multiplication Approach**

In this approach, the number is calculated by multiplying `10` with `(10 ** 2)`. This uses exponentiation (the `**` operator) to calculate the square of `10`, which is a common pattern in mathematics. The result is added to `10`.

Pros:

* Simple and straightforward calculation
* No need to create intermediate strings or parse values

Cons:

* May not take advantage of browser-specific optimizations for string concatenation and parsing
* May be slower due to the use of exponentiation, which can be a more expensive operation than simple multiplication

**parseInt Approach**

In this approach, two separate operations are performed: string concatenation (`"10" + "10"`), followed by parsing the resulting string as an integer using `parseInt`. This approach requires creating intermediate strings and performing additional work.

Pros:

* May take advantage of browser-specific optimizations for string concatenation and parsing
* Can be faster due to the optimized execution of these operations

Cons:

* Requires more computational steps, which can lead to slower performance
* Creates intermediate strings, which may increase memory usage

**Other Considerations**

When evaluating these approaches, it's essential to consider factors like:

* Browser-specific optimizations: Different browsers may optimize string concatenation and parsing differently, affecting the performance of each approach.
* Compiler optimizations: Modern JavaScript engines use various compiler optimizations, such as inlining and dead code elimination. These optimizations can impact the performance of each approach.

**Library or Special JS Feature**

There is no explicit library mentioned in the benchmark definition. However, the use of exponentiation (`10 ** 2`) may be a feature specific to modern JavaScript engines, which supports this syntax since ECMAScript 2015 (ES6).

**Alternative Approaches**

Other possible approaches could include:

* Using a more efficient data type, such as ` BigInt`, for the calculation
* Breaking down the calculation into smaller, more manageable pieces and executing them in series
* Using a different mathematical operation, such as using the `Math.sqrt` function to calculate the square root and then squaring the result

Keep in mind that these alternative approaches would likely have different pros and cons compared to the original multiplication and parseInt approaches.

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0

Browser/OS: Firefox 78 on Linux

View result in a separate tab

Test name	Executions per second
multiplication	1201776640.0 Ops/sec
parseInt	20600052.0 Ops/sec

Related benchmarks:

multiplication vs parseInt (version: 0)

Comparing performance of: multiplication vs parseInt

Created: 2 years ago by: Guest

Jump to the latest result

multiplication

parseInt

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):