Let's break down the benchmark and explain what's being tested.

Benchmark Overview

The benchmark compares three different ways to concatenate a string in JavaScript:

1. Interpolation (${didThing})
2. toString() method
3. Concatenation using the + operator ('' + didThing)

Options Compared

The benchmark is comparing these three options because they are often used in similar situations, but with different performance implications.

• Interpolation (${didThing}): This approach uses template literals or string formatting functions to insert values into a string.
• toString() method: This approach calls the toString() method on an object (in this case, didThing) and returns its string representation.
• Concatenation using the + operator ('' + didThing): This approach uses the + operator to concatenate two strings.

Pros and Cons of Each Approach

1. Interpolation
   • Pros: Generally faster than calling toString() or concatenating with +, especially for simple strings.
   • Cons: May not be suitable for all situations, such as when working with legacy browsers that don't support template literals.
2. toString() method
   • Pros: Widely supported and can work across different environments.
   • Cons: Can be slower than interpolation or concatenation due to the overhead of calling a method.
3. Concatenation using the + operator
   • Pros: Simple and widely supported, but can lead to performance issues with large strings.
   • Cons: Generally slower than interpolation or calling toString().

Library Usage

In this benchmark, there is no library being used explicitly. However, some modern browsers (like Safari 16) might use their own template literals implementations under the hood, which would affect the results.

Special JS Features

There are no special JavaScript features or syntaxes mentioned in the benchmark definition or individual test cases.

Other Considerations

When choosing between these options, consider the following factors:

• Performance: If speed is critical, interpolation might be a better choice.
• Compatibility: If you need to support older browsers or environments with limited string manipulation capabilities, toString() method or concatenation using + operator might be more suitable.
• Code readability and maintainability: Interpolation can make code easier to read and understand.

Alternative Approaches

If you're not satisfied with the results of this benchmark, consider testing other string concatenation approaches, such as:

• Using Array.prototype.join() or a similar method.
• Utilizing a library like Lodash's join function.
• Exploring more advanced template literals implementations, if available.

Keep in mind that the choice of approach ultimately depends on your specific use case and requirements.