Benchmark: Arrow function vs bind function dont bind

Script Preparation code:

arrowFn = () => this
bindFn = (function() { return this })

Tests:

Arrow function
arrowFn()
Bind function
bindFn()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Arrow function
Bind function

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/134.0.0.0 Safari/537.36

Browser/OS: Chrome 134 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Arrow function	67644824.0 Ops/sec
Bind function	67954160.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON for MeasureThat.net, which compares the performance of arrow functions and bind functions.

**What is being tested?**

The benchmark tests two JavaScript functions: an arrow function and a bound version of another function (bind function). The purpose of this comparison is to evaluate how these two approaches perform in terms of execution speed and efficiency.

**Options compared:**

1. **Arrow Function**: A concise, expressive syntax introduced in ECMAScript 2015. It allows for anonymous functions without the need for explicit `function` declarations.
2. **Bind Function**: The `bind()` method is used to create a new function that has its `this` keyword set to a specific value.

**Pros and Cons of each approach:**

1. **Arrow Functions**
	* Pros:
		+ Concise syntax
		+ No explicit `function` declaration needed
		+ Lexical scoping (implied `let` or `const` variables)
	* Cons:
		+ Limited use cases where `this` needs to be explicitly set
		+ No access to the global scope (`window`, `document`, etc.)
2. **Bind Function**
	* Pros:
		+ Explicit control over the `this` keyword
		+ Wide adoption and compatibility across browsers
	* Cons:
		+ Longer syntax compared to arrow functions
		+ Can be less readable, especially for complex functions

**Other considerations:**

1. **Lexical scoping**: Both arrow functions and bind functions rely on lexical scoping (the scope of a variable in which it is declared). This can lead to some interesting behavior when dealing with nested scopes or closures.
2. **`this` keyword**: The `this` keyword is crucial in both approaches. Arrow functions use the implied `let` or `const` variables' scope, while bind functions explicitly set the `this` value.

**Library usage:**

There are no explicit libraries mentioned in the provided JSON. However, it's worth noting that MeasureThat.net might utilize libraries like V8 (the JavaScript engine used by Google Chrome) or SpiderMonkey (the JavaScript engine used by Firefox) for benchmarking purposes.

**Special JS features or syntax:**

This benchmark does not explicitly use any special JavaScript features or syntax beyond what is mentioned above. If you're interested in exploring other aspects of JavaScript, there are many more features and syntax elements to delve into.

**Alternatives:**

If you'd like to explore similar benchmarks or compare the performance of different JavaScript functions, here are a few alternatives:

1. **Benchmarking libraries**: Consider using libraries like Benchmark.js or jsperf (now deprecated) for creating custom benchmarks.
2. **V8 and SpiderMonkey benchmarking tools**: If you're interested in benchmarking specific JavaScript engines, look into V8's built-in benchmarking tools or the SpiderMonkey Benchmarking Suite.
3. **JavaScript performance comparison tools**: Tools like JsPerf and jsbench.io allow you to compare the performance of different JavaScript functions and libraries.

Keep in mind that these alternatives might require more setup and configuration compared to MeasureThat.net's simple JSON-based API.

Related benchmarks:

Arrow function vs bind function dont bind (version: 0)

Comparing performance of: Arrow function vs Bind function

Created: 5 years ago by: Guest

Jump to the latest result

Arrow function

Bind function

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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