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Number to String
(version: 0)
Comparing performance of:
Interpolation vs toString()
Created:
6 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var number = Math.round(Math.random() * 1000)
Tests:
Interpolation
`${number}`
toString()
number.toString()
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Interpolation
toString()
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Browser/OS:
Chrome 131 on Mac OS X 10.15.7
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=575317" width="100%" height="500px"></iframe>
Interpolation
127.8M/s
toString()
113.2M/s
View exact numbers
Test name
Executions per second
✓
Interpolation
127,820,224 Ops/sec
toString()
113,167,848 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Overview of the Benchmark** The provided benchmark measures the performance of two approaches to convert an integer to a string in JavaScript: interpolation and the `toString()` method. **Interpolation Approach** In the interpolation approach, a variable `number` is assigned a random value between 0 and 1000 using `Math.round(Math.random() * 1000)`. This value is then inserted into a template string using backticks (`). The interpolation approach uses the spread operator (`...`) to extract the value of `number` from the template string. The resulting string is compared to the original numeric value. **toString() Method Approach** In the `toString()` method approach, the built-in `toString()` method is used to convert the integer to a string. The main difference between these two approaches is that interpolation allows for more flexible and dynamic string formatting, while the `toString()` method provides a more straightforward and predictable way of converting numbers to strings. **Pros and Cons** * **Interpolation Approach** + Pros: - More flexible and dynamic string formatting - Can be used with variables, expressions, and even functions + Cons: - May have performance overhead due to template parsing and evaluation - Can lead to security vulnerabilities if not properly sanitized * **toString() Method Approach** + Pros: - More straightforward and predictable conversion - Typically faster than interpolation approach + Cons: - Less flexible and dynamic string formatting compared to interpolation **Other Considerations** * The use of `Math.round()` in the preparation code may introduce some variability in the benchmark results, as it can lead to slightly different values being generated for each execution. * The benchmark assumes that the `toString()` method is implemented correctly by the JavaScript engine. In reality, there might be some variations in implementation across different browsers and engines. **Library** None of the provided test cases use a specific library or module. However, it's worth noting that many modern JavaScript frameworks and libraries (e.g., React, Angular) often rely on interpolation techniques for string formatting. **Special JS Feature/Syntax** The benchmark uses backticks (`) for template literals, which is a relatively recent addition to the JavaScript language (introduced in ECMAScript 2015). This feature allows for more expressive and flexible string formatting.
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