Benchmark: Template strings vs. String.concat, v2

Script Preparation code:

const base = '1-2'
const separator = '-';
const suffix = 3;

function templateString() {
  return `${base}${separator}${suffix}`;
}

function stringConcat() {
  return base.concat(separator, suffix);
}

Tests:

Template string
templateString()
String.concat
stringConcat()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Template string
String.concat

Fastest: N/A

Slowest: N/A

Latest run results:

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Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

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I'll break down the benchmark and its components to explain what's being tested, compared, and their pros and cons.

**Benchmark Definition**

The provided JSON defines a JavaScript microbenchmark called "Template strings vs. String.concat, v2". The benchmark consists of two test cases: `templateString()` and `stringConcat()`. Both functions are designed to concatenate three string literals using different methods.

**Script Preparation Code**

The script preparation code is identical for both functions:
```javascript
const base = '1-2';
const separator = '-';
const suffix = 3;

function templateString() {
  return `${base}${separator}${suffix}`;
}

function stringConcat() {
  return base.concat(separator, suffix);
}
```
These two functions are the core of the benchmark and will be compared in terms of performance.

**Options Compared**

The main options being compared are:

1. **Template Strings**: The `templateString()` function uses template literals (introduced in ECMAScript 2015) to concatenate the strings.
2. **String.concat()**: The `stringConcat()` function uses the built-in `concat()` method to concatenate the strings.

**Pros and Cons**

Here's a brief overview of each approach:

* **Template Strings**
	+ Pros:
		- More readable and expressive code
		- Can handle more complex string concatenations (e.g., formatting)
		- Less prone to errors due to implicit type coercion
	+ Cons:
		- May have performance overhead due to the creation of a new template literal object
* **String.concat()**
	+ Pros:
		- Typically faster and more efficient for simple string concatenations
		- Can be used in older browsers that don't support template literals
	+ Cons:
		- Less readable and expressive code
		- More prone to errors due to explicit type coercion

**Library Used**

None. This benchmark doesn't rely on any external libraries.

**Special JS Feature or Syntax**

Template literals (used in `templateString()`) were introduced in ECMAScript 2015. They provide a more readable and expressive way of concatenating strings, but may have performance implications.

**Other Considerations**

* The benchmark uses a relatively small input (`base`, `separator`, and `suffix`), which may not accurately represent real-world use cases.
* The benchmark doesn't account for edge cases like null or undefined inputs, which could affect the results.
* The comparison is limited to two specific functions, which may not provide a comprehensive understanding of the performance differences between template literals and string concatenation methods.

**Other Alternatives**

There are other ways to concatenate strings in JavaScript, such as:

1. Using the `+` operator (e.g., `base + separator + suffix`)
2. Using `String.prototype.format()` or similar formatting libraries
3. Using third-party libraries like Lodash for string manipulation

Keep in mind that these alternatives may have different trade-offs and implications compared to template literals and string concatenation methods.

Overall, this benchmark provides a simplified comparison of two common string concatenation techniques in JavaScript, highlighting the benefits and drawbacks of each approach.

Related benchmarks:

Template strings vs. String.concat, v2 (version: 0)

Comparing performance of: Template string vs String.concat

Created: 5 years ago by: Guest

Jump to the latest result

Template string

String.concat

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):