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Template Literal Vs Array Join
(version: 0)
Comparing performance of:
template literal vs Array Join
Created:
5 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var str = "Hello World" var newStr = "Goodbye" var start = 5
Tests:
template literal
const foo = `${str}-${newStr}-${start}`
Array Join
const bar = [str,newStr,start].join('-')
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
template literal
Array Join
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Browser/OS:
Chrome 131 on Mac OS X 10.15.7
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=581114" width="100%" height="500px"></iframe>
template literal
48.0M/s
Array Join
20.3M/s
View exact numbers
Test name
Executions per second
✓
template literal
48,016,228 Ops/sec
Array Join
20,274,866 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and its test cases. **Benchmark Definition** The benchmark is named "Template Literal Vs Array Join". This suggests that we're comparing two different approaches for concatenating strings in JavaScript: 1. **Template Literals**: A template literal is a new way of formatting strings in JavaScript, introduced in ECMAScript 2015 (ES6). It allows you to embed expressions inside string literals using backticks (`). 2. **Array Join**: This approach involves creating an array of strings and then joining them together using the `join()` method. **Options Compared** The benchmark is comparing the performance of these two approaches: * Template Literals * Array Join **Pros and Cons** * **Template Literals**: + Pros: More readable, concise, and expressive code. Can handle complex string formatting. + Cons: May have slower performance compared to array join for very large strings or arrays. * **Array Join**: + Pros: Can be faster than template literals for very large strings or arrays. Can also be used when you need more control over the string concatenation process. + Cons: Less readable and may lead to harder-to-debug code. **Library** None of the test cases explicitly use a library, but it's worth noting that JavaScript engines like V8 (used by Chrome) have optimized various string manipulation functions, including template literals and array join. **Special JS Feature or Syntax** Template literals use a special syntax with backticks (`) and expressions inside. This feature is relatively new to JavaScript and can be beneficial for complex string formatting tasks. **Benchmark Preparation Code** The script preparation code includes variables `str`, `newStr`, and `start` which are used in the benchmark tests: * `var str = "Hello World"`; * `var newStr = "Goodbye"`; * `var start = 5`; These variables represent the input strings and a constant that will be concatenated with them. **Individual Test Cases** The benchmark has two test cases, each comparing one of the two approaches: 1. **Template Literal**: This test case creates a template literal using the `${}` syntax to concatenate the three variables into a single string. 2. **Array Join**: This test case uses an array `[]` to store the input strings and then joins them together using the `join()` method. **Other Alternatives** If you need alternative approaches for concatenating strings, some other options include: * Using the `+` operator (e.g., `str + newStr + start`) * Using the `concat()` method (e.g., `[str, newStr, start].concat()`) * Using a library like Lodash's `templateLiteral` function However, these alternatives are not being tested in this specific benchmark.
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