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Compare substring with less than threshold with doing nothing
(version: 0)
Comparing performance of:
do nothing vs substring with more than needed
Created:
4 years ago
by:
Guest
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Script Preparation code:
var str = "I am the god of hellfire, and I bring you..."
Tests:
do nothing
str = str + "...";
substring with more than needed
var substring = str.substring(0, 1000) + "...";
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
do nothing
substring with more than needed
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the benchmark and explain what's being tested. **Benchmark Overview** The benchmark is comparing two approaches to measure performance: "doing nothing" (i.e., not modifying the original string) versus creating a substring using the `substring()` method with a threshold of 1000 characters, regardless of whether it's necessary or not. **Options Compared** There are two options being compared: 1. **Doing Nothing**: This approach creates no additional overhead by not modifying the original string. 2. **Substring Method**: This approach uses the `substring()` method to create a substring with a fixed length of 1000 characters, even if it's not necessary. **Pros and Cons** **Doing Nothing** Pros: * No additional overhead or resources are used * No unnecessary data is created Cons: * May not accurately measure performance related to string manipulation * May not be representative of real-world use cases where strings are often modified **Substring Method** Pros: * Can be more accurate for measuring performance related to string manipulation * More representative of real-world use cases where strings are often modified and truncated Cons: * Creates unnecessary data and overhead due to the `substring()` method * May lead to slower performance if the substring is not necessary **Other Considerations** The benchmark also considers the device platform (Desktop), operating system (Windows), and browser (Chrome 90) to ensure a fair comparison. **Library Usage** None of the test cases use any libraries, making it a simple and isolated measurement. **Special JS Feature/Syntax** There is no special JavaScript feature or syntax being tested in this benchmark. The focus is on measuring performance between two straightforward approaches: doing nothing and using the `substring()` method. **Alternative Benchmarks** To provide more comprehensive insights, other benchmarks might consider: * Measuring performance with different substring lengths or thresholds * Comparing performance with different string manipulation methods (e.g., slicing, concatenation, or regular expressions) * Adding noise or variations to the input data to simulate real-world scenarios In summary, this benchmark provides a straightforward comparison of two approaches: doing nothing and using the `substring()` method. While it has its pros and cons, it can still provide valuable insights for measuring performance related to string manipulation in JavaScript.
Related benchmarks:
Compare substring with less than threshold with doing nothing 1
Compare substring with less than threshold with doing nothing 2
slice substring substr
Performance Test: substring vs substr vs slice 1
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