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Split join vs replace static
(version: 0)
Benchmark.js
Comparing performance of:
split + join vs replace
Created:
5 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var example = 'AgreementChangeId'
Tests:
split + join
var result = example.split('nt').join(' ');
replace
var result = example.replace('nt', ' $1')
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
split + join
replace
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:136.0) Gecko/20100101 Firefox/136.0
Browser/OS:
Firefox 136 on Linux
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=585553" width="100%" height="500px"></iframe>
replace
10.1M/s
split + join
8.8M/s
View exact numbers
Test name
Executions per second
✓
replace
10,102,500 Ops/sec
split + join
8,841,883 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided JSON data and explain what's being tested on MeasureThat.net. **Benchmark Definition** The benchmark is defined by two test cases: 1. `split + join` 2. `replace` Both tests involve manipulating a string variable called "example". **Options Compared** In this case, we have only two options being compared: a. `split('nt')` followed by `join(' ')`: This approach involves splitting the input string into substrings separated by 'nt', and then joining the resulting substrings back together with a single space in between. b. `replace('nt', ' $1')`: This approach involves replacing all occurrences of 'nt' in the input string with '$1'. **Pros and Cons** **Option (a): Split + Join** Pros: * Allows for flexible substring manipulation * Can be used to split a string into multiple parts Cons: * May incur unnecessary overhead due to repeated splitting and joining operations * Can lead to performance issues if the input string is large or contains many substrings **Option (b): Replace** Pros: * Typically faster than splitting and joining, as it involves only a single pass through the input string * Can be more efficient for large input strings or when dealing with many replacements Cons: * May not be suitable for cases where you need to split the input string into multiple parts * The replacement string '$1' may require additional processing to extract the matched substring. **Library and Special JS Features** In this benchmark, no special JavaScript libraries or features are explicitly mentioned. However, it's worth noting that the `replace` function is a built-in method in JavaScript that can take an optional second argument (the replacement string) to specify how to replace the matched substring. **Test Case Preparation Code** The script preparation code provided for each test case is: * `var example = 'AgreementChangeId'`: This sets the input variable "example" to a fixed string value. * No HTML preparation code is provided, which suggests that these tests are designed to focus on JavaScript performance and don't require any additional setup or rendering. **Other Alternatives** If you were to modify this benchmark to compare different approaches, some potential alternatives could include: * Using regular expressions instead of the `split` and `join` methods * Implementing a custom substring replacement algorithm * Comparing the performance of different string manipulation libraries or frameworks (e.g., jQuery's `replace()` method) Keep in mind that these alternatives would require significant modifications to the benchmark code, and may not be suitable for all use cases.
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Split join vs replace
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