Benchmark: IIFE function - MeasureThat.net

Tests:

!-invoke
!function someFunc(n) { switch (n) { case 'test': console.log('test') break; case 'not test': console.log('not test') break; default: console.log('system') } }('test')
() invoke
(function someFunc(n) { switch (n) { case 'test': console.log('test') break; case 'not test': console.log('not test') break; default: console.log('system') } }('test'))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
!-invoke
() invoke

Fastest: N/A

Slowest: N/A

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/90.0.4430.72 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
!-invoke	76647.4 Ops/sec
() invoke	76833.4 Ops/sec

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

LLMs can make mistakes. Check important info.

Measuring the performance of JavaScript microbenchmarks is an essential task, and MeasurThat.net provides a valuable platform for doing so.

**What's being tested?**

The provided JSON represents two test cases, each evaluating the performance of different ways to invoke a function. The functions in question are identical, with the only difference being how they're called:

1. `!-invoke` (using an exclamation mark and a hyphen): This is likely a feature-specific syntax or a proprietary method used by some browsers or environments.
2. `() invoke` (using parentheses and a space): This is a standard way to invoke a function in JavaScript.

**Options compared**

The two test cases compare the performance of these two invocation methods:

Pros and Cons:

* **!-invoke**: This syntax might be optimized for specific use cases, but it's not part of the standard JavaScript syntax. Its performance could be better due to browser-specific optimizations.
	+ Pros: Potential for improved performance in certain environments or use cases.
	+ Cons: May not work consistently across all browsers and environments, and its syntax is non-standard.
* **() invoke**: This is a widely supported and well-established way to call functions in JavaScript.
	+ Pros: Wide compatibility across browsers and environments, and it's easy to understand and implement.
	+ Cons: No potential performance improvement over the standard `()` syntax.

**Library**

None of the test cases use any external libraries. The benchmark definitions are standalone functions with a simple switch statement.

**Special JS feature or syntax**

The `!-invoke` syntax is likely a proprietary method used by some browsers or environments, but it's not part of the standard JavaScript syntax. This might be a browser-specific optimization that's been implemented to improve performance in certain scenarios.

**Alternatives**

Other alternatives for invoking functions in JavaScript include:

* Using arrow functions (`=>`) or `function()` syntax.
* Utilizing `Function` constructor or `new Function()` syntax.
* Leveraging the `call()` method or `apply()` method for more advanced function invocation scenarios.

These alternatives might offer different performance characteristics, depending on the specific use case and environment. However, the standard `()` syntax remains a widely supported and efficient way to call functions in JavaScript.

Related benchmarks:

IIFE function (version: 0)

Comparing performance of: !-invoke vs () invoke

Created: 3 years ago by: Guest

Jump to the latest result

!-invoke

() invoke

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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