Benchmark: string-interpolation-vs-concatenation-extended

Script Preparation code:

var luckyNumber = Math.round(Math.random() * 100);

Tests:

string-interpolation
`your ${luckyNumber} lucky ${luckyNumber} number ${luckyNumber} for today is: ${luckyNumber}`
string-concatenation
'your '+ luckyNumber +' lucky '+ luckyNumber +' number '+ luckyNumber +' for today is: ' + luckyNumber

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
string-interpolation
string-concatenation

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.102 Safari/537.36 Edg/85.0.564.51

Browser/OS: Chrome 85 on Windows

View result in a separate tab

Test name	Executions per second
string-interpolation	2171351.8 Ops/sec
string-concatenation	2277332.2 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):

LLMs can make mistakes. Check important info.

I'd be happy to explain what's being tested in this JavaScript benchmark.

**Overview**

The benchmark is testing the performance difference between using string interpolation (``) and concatenation (+) for string formatting in JavaScript.

**Benchmark Definitions**

There are two benchmark definitions:

1. **String Interpolation**: The first test case uses the `string-interpolation` syntax to format a string, which includes variables inside double quotes.
```javascript
"your ${luckyNumber} lucky ${luckyNumber} number ${luckyNumber} for today is: ${luckyNumber}"
```
This syntax is specifically designed for JavaScript and allows you to embed expressions (in this case, the `luckyNumber`) directly into a string.

2. **String Concatenation**: The second test case uses the `string-concatenation` syntax to format a string, which involves concatenating strings using the `+` operator.
```javascript
"'your '+ luckyNumber +' lucky '+ luckyNumber +' number '+ luckyNumber +' for today is: ' + luckyNumber"
```
This syntax is more verbose and requires you to concatenate multiple strings together.

**Options Compared**

The two options being compared are:

1. **String Interpolation**: Uses the `string-interpolation` syntax, which allows embedding expressions directly into a string.
2. **String Concatenation**: Uses the `string-concatenation` syntax, which involves concatenating strings using the `+` operator.

**Pros and Cons**

Here's a brief summary of the pros and cons of each approach:

* **String Interpolation**:
	+ Pros: More concise and readable code; can be faster for complex string formatting.
	+ Cons: May have performance overhead due to the complexity of the syntax.
* **String Concatenation**:
	+ Pros: Simple and easy to understand; no performance overhead.
	+ Cons: Less concise and less readable code; may result in slower performance due to the number of concatenations.

**Library**

There is no explicit library mentioned in this benchmark. However, it's worth noting that JavaScript has a built-in `String.prototype.replace()` method that can be used for string formatting. If you're using a specific library or framework, there might be additional features or syntax that affect performance.

**Special JS Feature/Syntax**

This benchmark doesn't use any special JavaScript features or syntax beyond the two options being compared. However, it's worth noting that more recent versions of JavaScript (ES6+) have added new features like template literals (`\`), which can also be used for string formatting and might affect performance.

**Other Alternatives**

If you're looking for alternatives to this benchmark, here are a few:

* **Using `String.prototype.replace()`**: This method is often used in older JavaScript versions or libraries that don't support modern syntax.
* **Using a template literal**: Template literals (``) provide a more concise and readable way of formatting strings in modern JavaScript.
* **Using a library like Moment.js**: Moment.js is a popular library for working with dates and times, but it can also be used for string formatting.

Keep in mind that the specific use case and performance requirements will determine the best approach. This benchmark aims to provide a basic comparison between two common methods of string formatting in JavaScript.

Related benchmarks:

string-interpolation-vs-concatenation-extended (version: 0)

Comparing performance of: string-interpolation vs string-concatenation

Created: 4 years ago by: Guest

Jump to the latest result

string-interpolation

string-concatenation

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):