Benchmark: No string building — faster code! Or not?.. Big N.

Script Preparation code:

function translate(arg1, arg2) {
	return ` some long long very very long long text duck dat sit ${arg1} other text ${arg2}`;
}

const template = [' some long long very very long long text duck dat sit ', ' other text '];
function getTranslatable(arg1, arg2) {
	return {
		template: template,
		args: [arg1, arg2],
	};
}

function isEqual(t1, t2) {
	if (t1.template !== t2.template) {
		return false;
	}
	
	return t1.args.every((arg, index) => arg === t2.args[index]);
	
}

results1 = [];
results2 = [];

Tests:

build strings and compare them
const s1 = translate(123456, 'foo'.repeat(50)); const s2 = translate(123456, 'foo'.repeat(50)); results1.push(s1 !== s2);
compare declarative objects
const t1 = getTranslatable(123456, 'foo'.repeat(50)); const t2 = getTranslatable(123456, 'foo'.repeat(50)); results2.push(isEqual(t1, t2));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
build strings and compare them
compare declarative objects

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided JSON and benchmark preparation code.

**Benchmark Definition**

The benchmark is designed to measure the performance of JavaScript in building strings and comparing them, as well as comparing declarative objects. The benchmark definition is represented by two test cases:

1. "build strings and compare them": This test case creates two identical string values using the `translate` function with different arguments, then compares their equality.
2. "compare declarative objects": This test case creates two identical declarative objects (objects with a specific structure) using the `getTranslatable` function with different arguments, then compares their equality.

**Options Compared**

Two approaches are compared in this benchmark:

1. **String building and comparison**: The first approach builds strings using concatenation (`+`) and string interpolation (`template`).
2. **Declarative object comparison**: The second approach creates declarative objects (with a specific structure) to compare their equality.

**Pros and Cons**

**String Building and Comparison**

Pros:

* Easy to understand and implement
* No additional dependencies required

Cons:

* Concatenation can be slow due to the creation of intermediate strings
* String interpolation can lead to unexpected performance issues if not optimized correctly

**Declarative Object Comparison**

Pros:

* Can be more efficient than string building and comparison, as it avoids creating intermediate objects
* Allows for more flexibility in defining the object structure

Cons:

* Requires understanding of declarative object structures and equality checks
* May require additional dependencies (e.g., libraries for object creation)

**Library Usage**

The benchmark uses two libraries:

1. **String interpolation**: The `template` array is used to create string interpolations, which allows for more readable and efficient string building.
2. **Declarative object comparison**: No explicit library is mentioned, but the `isEqual` function implies a custom equality check implementation.

**Special JS Feature or Syntax**

The benchmark uses:

1. **Template literals**: Used in the `translate` function to create string interpolations.
2. **Array repetition**: Used to create arrays of repeated strings (`'foo'.repeat(50)`).

In summary, the benchmark compares two approaches: string building and comparison vs. declarative object comparison. The first approach uses concatenation and string interpolation, while the second approach creates declarative objects for comparison. Both approaches have pros and cons, and understanding these trade-offs is essential to writing efficient JavaScript code.

**Alternatives**

Other alternatives for building strings and comparing them might include:

* Using a library like Lodash or Underscore.js for string manipulation
* Utilizing native methods like `String.prototype.repeat()` and `String.prototype.localeCompare()`
* Employing other templating engines, such as Handlebars

For declarative object comparison, alternative approaches might include:

* Using a library like Immutable.js for immutable data structures
* Implementing custom equality checks using recursion or iteration
* Leveraging built-in comparison methods (e.g., `Object.prototype.equals()` in some browsers)

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36

Browser/OS: Chrome 90 on Mac OS X 10.14.6

View result in a separate tab

Test name	Executions per second
build strings and compare them	1277075.9 Ops/sec
compare declarative objects	1275863.9 Ops/sec

Related benchmarks:

No string building — faster code! Or not?.. Big N. (version: 0)

Comparing performance of: build strings and compare them vs compare declarative objects

Created: 4 years ago by: Guest

Jump to the latest result

build strings and compare them

compare declarative objects

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):