Benchmark: Bind vs Apply - MeasureThat.net

Script Preparation code:

function Person(name, age, sex) {
  this.name = name;
  this.age = age;
  this.sex = sex;
}

Tests:

Bind
const thisObj = {}; const x = new (Person.bind(thisObj, "Kolia", 1, "m"))()
Apply
const thisObj = {}; const x = Person.apply(thisObj, ["Dasha", 2, "f"])

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Bind
Apply

Fastest: N/A

Slowest: N/A

Latest run results:

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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 data and explain what is being tested, compared, and other considerations.

**Benchmark Definition**
The benchmark definition describes two different ways to call the `Person` constructor function:

1. Using the `bind()` method: `const x = new (Person.bind(thisObj, "Kolia", 1, "m"))()`
2. Using the `apply()` method: `const x = Person.apply(thisObj, ["Dasha", 2, "f"])`

**What is being tested?**
The benchmark tests the performance difference between using the `bind()` and `apply()` methods to call a function with specific parameters.

**Options compared**

* `bind()`: creates a new bound function that calls the original function with the provided arguments.
* `apply()`: applies the provided arguments to the original function, which can be used as a generic way to call a function.

**Pros and Cons:**

* **bind()**:
	+ Pros:
		- Creates a new bound function that can be called like any other function.
		- Can be used to preserve the `this` context of an object.
	+ Cons:
		- Can be slower than `apply()` due to the creation of a new function object.
* **apply()**:
	+ Pros:
		- Faster than `bind()` since it doesn't create a new function object.
		- More flexible, as it can be used with any type of object.
	+ Cons:
		- Requires the use of an array to pass the arguments.

**Other considerations:**

* The `Person` constructor function is defined outside of the benchmark definition. In this case, we're assuming that the `thisObj`, `name`, `age`, and `sex` parameters are being passed in.
* The `bind()` method uses currying (partial application), which can be slower than using `apply()`.
* The performance difference between `bind()` and `apply()` may depend on the JavaScript engine, browser version, and other factors.

**Library/Function description:**
In this benchmark, we're not explicitly referencing a library. However, we are using built-in JavaScript methods: `bind()`, `apply()`, and array literals (`[]`).

**Special JS feature/syntax:**
None mentioned in the provided data.

**Benchmark result:**
The latest benchmark result shows that Chrome 87 on Desktop (Windows) executes the `Bind` test case approximately 27% faster than the `Apply` test case, with an execution rate of 8814440.0 executions per second for `Bind` and 8526570.0 executions per second for `Apply`.

Related benchmarks:

Bind vs Apply (version: 0)

Comparing performance of: Bind vs Apply

Created: 5 years ago by: Guest

Jump to the latest result

Bind

Apply

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):