Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
slice vs substring performance
(version: 0)
slice vs substring performance
Comparing performance of:
slice vs substring
Created:
5 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var str = '<div>AAA A<p style="text-align: center;"><b><span style="font-family: "times new roman"; font-size: 12pt;"></span><span style="font-family: "times new roman"; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">AAA A</span></b><span style="font-family: "times new roman"; font-size: 12pt;"></span></p></div>';
Tests:
slice
var str1 = str.slice(20,50)
substring
var str1 = str.substring(20,50)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
slice
substring
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 its test cases. **Benchmark Overview** The benchmark measures the performance of two string manipulation methods: `slice()` and `substring()`. The script being benchmarked is a HTML snippet that contains repeated instances of a text, which will be used to create a large string. The goal is to compare the execution speed of these two methods in slicing a subset of characters from this string. **Options Compared** Two options are compared: 1. **slice()**: This method returns a new string containing the specified segment of the original string. 2. **substring()**: This method returns a new string that includes the specified part of the original string, starting at the specified position. **Pros and Cons** Here's a brief summary of the pros and cons of each approach: * **slice()**: + Pros: Generally faster than `substring()` for large strings because it doesn't create an intermediate string. + Cons: Can be less intuitive to use, especially for developers not familiar with this method. It can also lead to off-by-one errors if the start or end indices are not carefully chosen. * **substring()**: + Pros: More straightforward to understand and use than `slice()` because it's a more traditional string manipulation method. + Cons: Creates an intermediate string, which can consume more memory and slow down performance. **Library Usage** There is no explicit library usage mentioned in the benchmark definition. However, it's worth noting that both `slice()` and `substring()` are built-in methods in JavaScript. **Special JS Feature or Syntax** None of the test cases utilize any special JavaScript features or syntax. They only rely on standard JavaScript methods and variables. **Other Alternatives** If you're looking for alternative string manipulation methods, here are a few options: * **Array.prototype.slice()**: This method is similar to `slice()` but operates on arrays instead of strings. * **String.prototype.indexOf()**, **String.prototype.lastIndexOf()**, and **String.prototype.substring()**: These methods can be used to extract substrings from a string, but they may not be as efficient as `slice()` or `substring()`. * **Regular expressions**: Regular expressions can be used to extract patterns from strings, but this approach is generally slower than using built-in string manipulation methods. Overall, the benchmark provides a useful comparison of two widely used string manipulation methods in JavaScript. It's helpful for developers and engineers to understand the performance differences between these approaches and choose the best one for their specific use cases.
Related benchmarks:
Performance Test: substring vs substr vs slice
Performance Test: substring vs substr vs slice: 3 shuffled
Performance Test: substring vs subsstr vs slice
Javascript slice vs substring
Last char remove V1.0
Comments
Confirm delete:
Do you really want to delete benchmark?