Benchmark: hyiuyuyui - MeasureThat.net

Tests:

1
new Date()
2
Date.now()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
1
2

Fastest: N/A

Slowest: N/A

Latest run results:

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

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Let's dive into explaining the benchmark measurements on MeasureThat.net.

**Benchmark Definition**
The provided JSON defines a simple benchmark, but there is no actual script or code provided in the "Script Preparation Code" or "Html Preparation Code" fields. This means that the benchmark doesn't require any preparation of JavaScript code before execution. The presence of empty strings for these fields suggests that the benchmark only measures the performance difference between two specific functions: `new Date()` and `Date.now()`.

**What is being tested?**
The benchmark tests the performance difference between two date-related functions in JavaScript:

1. `new Date()`: Creates a new Date object with the current system time.
2. `Date.now()`: Returns the number of milliseconds since January 1, 1970 (UTC), also known as the Unix timestamp.

**Options compared**
The benchmark compares the performance of these two options under different circumstances:

* The JavaScript engine's execution speed for each function call.
* The overhead introduced by creating a new Date object versus accessing the `Date.now()` method directly.

**Pros and Cons**

* **`new Date()`**: Creating a new Date object can be useful in situations where you need to perform date-related calculations or operations. However, it can also introduce unnecessary overhead due to the creation of an extra object.
* **`Date.now()`**: This method is generally faster because it doesn't require creating a new object. However, it only provides the current timestamp and may not be suitable for all use cases.

**Other considerations**

* When using `new Date()`, you should consider caching or memoizing the results to avoid repeated calls to this function.
* The performance difference between these two functions can vary depending on the specific use case, browser, and JavaScript engine.

**Library usage**
There are no libraries explicitly mentioned in the provided benchmark definition. However, it's worth noting that some libraries may provide optimized implementations of date-related functions or offer alternative approaches to measuring time.

**Special JS features or syntax (not applicable)**

Since neither `new Date()` nor `Date.now()` rely on special JavaScript features or syntax beyond standard language constructs, there is no additional explanation required for these specific examples.

**Alternatives**
Other alternatives for measuring performance in JavaScript benchmarks include:

* Using the `Performance` API to measure execution times.
* Utilizing benchmarking libraries like Benchmark.js or Microbenchmark.
* Implementing custom timing functions using techniques like async/await or Promises.

Related benchmarks:

hyiuyuyui (version: 0)

i

Comparing performance of: 1 vs 2

Created: 4 years ago by: Guest

Jump to the latest result

1

2

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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