Benchmark: Number Comparison vs String Comparison addition

Script Preparation code:

var intA = 42.034;
var intB = 42.034;
var strA = "42.034";
var strB = "42.034";

Tests:

Number Comparison
var res = intA == intB;
String Comparison
var res = strA == strB;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Number Comparison
String Comparison

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser/OS: Chrome 123 on Linux

View result in a separate tab

Test name	Executions per second
Number Comparison	4672172.5 Ops/sec
String Comparison	4660121.0 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

I'd be happy to help explain the provided benchmark.

**Overview**

The benchmark measures the performance difference between comparing two numbers (using `==`) and comparing two strings (using `==`) in JavaScript. The benchmark uses two variables, `intA` and `intB`, which are assigned the value `42.034`, and `strA` and `strB`, which are assigned the string representation of the same number, `"42.034"`.

**Options Compared**

The benchmark compares two options:

1. **Number Comparison**: The first test case checks if `intA == intB`. This comparison is expected to be very fast because numbers in JavaScript are implemented as 64-bit integers and can be compared directly without any additional processing.
2. **String Comparison**: The second test case checks if `strA == strB`. This comparison is expected to be slower than the number comparison because strings in JavaScript are not stored in a native format and need to be processed by the string comparison algorithm.

**Pros and Cons**

* **Number Comparison**:
	+ Pros: Fast, reliable, and accurate.
	+ Cons: May not work as expected with non-numeric values (e.g., `intA == "42.034"`).
* **String Comparison**:
	+ Pros: Can handle non-numeric values and provides a more robust comparison mechanism for strings.
	+ Cons: Slower than number comparison, may be affected by string normalization rules.

**Library and Special JS Features**

There are no specific libraries used in this benchmark, but note that the `==` operator is overloaded to compare numbers and strings. Additionally, the benchmark uses native JavaScript features without any additional dependencies or optimizations.

**Other Alternatives**

If you want to run similar benchmarks, consider exploring other JavaScript engines like Node.js, V8 (Google's JavaScript engine), or SpiderMonkey (Mozilla's JavaScript engine). You can also experiment with different comparison operators, such as `===`, `!=`, or regular expressions.

To prepare a new benchmark on MeasureThat.net, follow these steps:

1. Create a new benchmark by filling out the form.
2. Write your script preparation code in the "Script Preparation Code" field.
3. Add test cases for each scenario you want to measure.
4. Set up the execution settings, such as number of executions and interval between runs.
5. Run the benchmark and view the results.

Keep in mind that MeasureThat.net provides a convenient way to run benchmarks across multiple browsers and devices, but it may not be suitable for all use cases.

Related benchmarks:

Number Comparison vs String Comparison addition (version: 0)

Comparing performance of: Number Comparison vs String Comparison

Created: 5 years ago by: Guest

Jump to the latest result

Number Comparison

String Comparison

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):