Benchmark: Direct call vs bind vs call vs apply 2

Script Preparation code:

function test(msg) {
  var d = msg;
}

Tests:

direct call
test("Hello");
bind
test.bind(null)("Hello");
call
test.call(null, "Hello");
apply
test.apply(null, ["Hello"]);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
direct call
bind
call
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 dive into the explanation.

**What is being tested?**

The provided benchmark measures the performance of different ways to invoke a function: `direct call`, `bind`, `call`, and `apply`. Specifically, it tests how these methods affect the execution speed of the `test` function when called with a string argument.

**Options compared:**

1. **Direct call**: The function is invoked directly using the dot notation (`test("Hello");`).
2. **Bind**: The `bind` method is used to create a new function that has its context set to `null`. The original function is then called with this new bound function and the string argument (`test.bind(null)("Hello";)`).
3. **Call**: Similar to bind, but the original function is called directly using the dot notation, but with `this` set to `null` as the first argument (`test.call(null, "Hello");`).
4. **Apply**: The `apply` method is used to execute a function with a specific context and arguments. In this case, the original function is called with `null` as the first argument (context) and an array containing the string argument (`test.apply(null, ["Hello"]);`).

**Pros and cons of each approach:**

1. **Direct call**: This is the most straightforward way to invoke a function. It's fast but doesn't offer any benefits over direct function invocation.
2. **Bind**: Binding the function allows for flexibility in calling it with different arguments. However, it may introduce additional overhead due to the creation of a new bound function object. Pros: flexible, cons: potential overhead.
3. **Call**: This method is similar to bind but uses `this` set to `null`. It's slightly faster than bind because it avoids creating a new bound function object. However, it still requires passing `this` explicitly. Pros: fast, cons: requires explicit this argument.
4. **Apply**: Using apply allows for flexibility in calling the function with different arguments and contexts. The overhead of using apply can be significant compared to direct function invocation or call. Pros: flexible, cons: high overhead.

**Library usage:**

In this benchmark, `bind` is used as a library (function) that returns a new bound function. This allows for dynamic creation of functions with specific contexts.

**Special JS feature/syntax:**

This benchmark does not explicitly use any special JavaScript features or syntax beyond the standard ECMAScript 5 and later features. However, it's worth noting that the `bind`, `call`, and `apply` methods are part of the ECMAScript specification and have been supported in modern browsers for a long time.

**Alternatives:**

For similar benchmarking purposes, you can use other tools like:

1. **Benchmark.js**: A popular JavaScript benchmarking library.
2. **jsperf**: A simple JavaScript benchmarking tool that allows you to create and run benchmarks.
3. **Google Benchmark**: A high-performance benchmarking library for JavaScript.

Keep in mind that the choice of benchmarking tool or library depends on your specific use case, performance requirements, and personal preferences.

Related benchmarks:

Direct call vs bind vs call vs apply 2 (version: 0)

Comparing performance of: direct call vs bind vs call vs apply

Created: 4 years ago by: Guest

Jump to the latest result

direct call

bind

call

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):