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string-interpolation-vs-concatenation-performance
(version: 0)
Comparing performance of:
string-interpolation vs string-concatenation
Created:
5 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var luckyNumber = Math.round(Math.random() * 100); var stringValue = 'lorem ipsum'; var today = new Date();
Tests:
string-interpolation
`your lucky number for today (${today}) is: ${luckyNumber} ... ${stringValue}`
string-concatenation
'your lucky number for today (' + today + ') is: ' + luckyNumber + ' ... ' + stringValue
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
string-interpolation
string-concatenation
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
10 months ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:142.0) Gecko/20100101 Firefox/142.0
Browser/OS:
Firefox 142 on Mac OS X 10.15
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=617090" width="100%" height="500px"></iframe>
string-interpolation
7.4M/s
string-concatenation
6.8M/s
View exact numbers
Test name
Executions per second
✓
string-interpolation
7,376,012 Ops/sec
string-concatenation
6,833,212 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the explanation of the provided benchmark. **Benchmark Overview** The benchmark, "string-interpolation-vs-concatenation-performance", compares the performance of two approaches for string manipulation in JavaScript: template literals (string interpolation) and concatenation using the "+" operator. **Options Compared** Two test cases are compared: 1. **String Interpolation**: Using template literals to create a string. 2. **String Concatenation**: Using the "+" operator to concatenate strings. **Pros and Cons of Each Approach** * **Template Literals (String Interpolation)**: + Pros: - More readable and maintainable code - Reduced risk of errors due to automatic escaping and parsing + Cons: - May have performance overhead due to the creation of a new string object - Not all browsers support template literals, although most modern ones do * **String Concatenation (using "+")**: + Pros: - Lightweight and efficient, as it only creates a single string object + Cons: - More error-prone due to the lack of automatic escaping and parsing - Can lead to performance issues if done in a loop or with large strings **Library Used** There is no explicit library mentioned in the benchmark. However, Firefox/113's execution time for both test cases implies that it's using the JavaScript engine's built-in string manipulation functionality. **Special JS Feature or Syntax** The benchmark uses template literals (string interpolation), which is a modern JavaScript feature introduced in ECMAScript 2015 (ES6). This allows for more readable and maintainable code by enabling the use of backticks (`) to delimit string expressions. While not all browsers supported this feature initially, most modern ones do. **Other Alternatives** While template literals are an efficient and readable way to create strings in JavaScript, there are other alternatives: * **String formatting functions**: Some libraries like Lodash provide string formatting functions that can be used for interpolation. * **DOM-based templating engines**: Engines like Handlebars or Mustache allow you to write templates using a syntax similar to HTML, which can then be executed to generate strings. However, these alternatives are typically used in more complex scenarios or when dealing with large datasets, and the benchmark focuses on comparing simple string interpolation vs concatenation.
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string-interpolation-vs-concatenation
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