Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
replaceall vs reduce
(version: 0)
Comparing performance of:
replaceall vs reduce
Created:
3 years ago
by:
Guest
Jump to the latest result
Tests:
replaceall
const text = 'a+b+c+d+e+f+g+h+i+j+k+l+m+n+o+p+q+r+s+t+u+v+w+x+y+z'; text.replaceAll('+', ' ');
reduce
const text = 'a+b+c+d+e+f+g+h+i+j+k+l+m+n+o+p+q+r+s+t+u+v+w+x+y+z'; text.split('').reduce((a, c) => (c === '+' ? a + ' ' : a + c), '');
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
replaceall
reduce
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
This benchmark does not have any results yet. Be the first one
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what is being tested. **Benchmark Definition** The benchmark definition provides two different approaches to replace all occurrences of a character in a string: 1. `replaceAll`: This method uses the built-in `replaceAll` function, which replaces specified values with specified replacement characters. 2. `reduce`: This approach splits the input string into individual characters and then applies a reduction operation using the `reduce` array method. **Options being compared** The two options being compared are: 1. **replaceAll**: This method is likely to be faster because it's implemented in native code, which can execute more efficiently than JavaScript. 2. **reduce**: This approach is more verbose and uses JavaScript's functional programming model, which may introduce overhead due to function call overhead and garbage collection. **Pros and Cons** 1. `replaceAll`: * Pros: Typically faster, more efficient. * Cons: May not be as flexible or powerful as other approaches. 2. `reduce`: * Pros: More flexible and powerful, can handle more complex operations. * Cons: May be slower due to function call overhead and garbage collection. **Library and its purpose** The `replaceAll` method uses the built-in JavaScript method with the same name, which is implemented in native code by the browser. The `reduce` approach relies on the `reduce` array method, which is also a built-in JavaScript method. **Special JS feature or syntax** Neither of these approaches utilizes any special JavaScript features or syntax that would require additional explanation. **Other alternatives** There are other approaches to replace all occurrences of a character in a string: 1. Using a regular expression: `text.replace(/\+/g, ' ')` 2. Using `map` and `join`: `text.split('').map(c => c === '+' ? ' ' : c).join('')` These alternatives may have different performance characteristics and trade-offs compared to the `replaceAll` and `reduce` approaches. I hope this explanation helps software engineers understand what is being tested in the provided benchmark!
Related benchmarks:
replaceAll vs regex replace (no prep code)
replaceAll vs replace with /g
replaceAll vs replace with regex for empty string substition
replace vs replaceAll 2
replaceAll vs rgx replace
Comments
Confirm delete:
Do you really want to delete benchmark?