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Date valueOf() vs getTime() vs Number()
(version: 0)
Benchmark.js
Comparing performance of:
valueOf() vs getTime() vs Number()
Created:
3 years ago
by:
Guest
Go to the latest result
Tests:
valueOf()
return new Date().valueOf()
getTime()
return new Date().getTime()
Number()
return Number(new Date())
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
valueOf()
getTime()
Number()
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36 Edg/139.0.0.0
Browser/OS:
Chrome 139 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=616235" width="100%" height="500px"></iframe>
getTime()
19.7M/s
valueOf()
19.1M/s
Number()
11.4M/s
View exact numbers
Test name
Executions per second
✓
getTime()
19,738,464 Ops/sec
valueOf()
19,146,294 Ops/sec
Number()
11,363,840 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what's being tested. **Benchmark Definition** The provided JSON defines a benchmark with three test cases: 1. `valueOf()`: Tests the performance of the `valueOf()` method on the `Date` object. 2. `getTime()`: Tests the performance of the `getTime()` method on the `Date` object. 3. `Number()`: Tests the performance of converting a `Date` object to a number using the `Number()` function. **Options Compared** The benchmark compares three different approaches for extracting time-related information from a `Date` object: * `valueOf()`: Returns the timestamp in milliseconds since the Unix epoch (January 1, 1970). * `getTime()`: Returns the timestamp in milliseconds since the Unix epoch (January 1, 1970), similar to `valueOf()`, but with some additional performance optimizations. * `Number()`: Converts the `Date` object to a number using the `Number()` function, which is not directly related to extracting time information. **Pros and Cons** Here's a brief overview of each approach: * `valueOf()`: Simple and widely supported, but may not be as performant as other approaches. * `getTime()`: Optimized for performance, especially in older browsers. However, it may have some compatibility issues with very old browsers. * `Number()`: Not directly related to extracting time information, which might lead to unexpected behavior or results. **Libraries and Special Features** There are no libraries explicitly mentioned in the benchmark definition. However, it's worth noting that the `Date` object is a built-in JavaScript object, and its methods (`valueOf()`, `getTime()`) are part of the ECMAScript standard. **Other Alternatives** If you're interested in exploring alternative approaches for extracting time-related information from `Date` objects, you could consider: * Using other libraries like Moment.js or Luxon, which provide more advanced date and time manipulation capabilities. * Implementing your own custom methods for extracting specific parts of the date (e.g., hours, minutes, seconds). * Using Web Workers or other parallel processing techniques to improve performance. Keep in mind that these alternatives might not be supported by older browsers or may require additional setup.
Related benchmarks
Date valueOf() vs getTime()
Date.valueOf vs Date.getTime() vs Number
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