Benchmark: Nested vs Cascade

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var eventsList = {
    "groupEnrollmentEvents": ["Annual Enrollment", "ACA Annual Enrollment", "FSA Enrollment"],
    "lifeEvents": ["8ad7e596-e78e-4e7f-ac94-8f6933e03363", "c953fba4-2d3d-46cb-873e-3911e29c7953", "4903c41d-9669-4011-99c6-1f07b080c294", "b34731e4-0580-45d1-9c41-901bf9175d5c"],
    "workEvents": ["ff68f286-ae60-4f58-9153-408d3c4ebadf", "df2ce490-ce4b-4872-95a8-a367327b74ce", "abe7cac3-cf54-4fc2-b67c-7f4badd7b4f7", "f1586e6c-eefc-43f3-804e-7c452a746bb1", "d55ff2b7-6038-4b17-a873-1867a0bd78df", "41a7e9ef-621a-414d-8899-55ce296df763", "134d8370-ade9-4907-94eb-ffcb3debf99e"]
};

var eventReasonLookup = ["1", "2"];
var workEvents = ["1"];
var workEvents = ["1", "2", "3"];

Tests:

nested IF
var resultNested = nestedIf(); function nestedIf(){ return _.size(_.get(eventsList, 'groupEnrollmentEvents', [])) === _.size(_.get(this, 'eventReasonsLookUp', [])) && _.size(_.get(eventsList, 'workEvents', [])) === _.size(this.workEvents) && _.size(_.get(eventsList, 'lifeEvents', [])) === _.size(this.lifeEvents); }
cascade if
var resultCascade = cascadeIf(); function cascadeIf() { if (_.size(_.get(eventsList, 'groupEnrollmentEvents', [])) !== _.size(_.get(this, 'eventReasonsLookUp', []))) { return false; } if (_.size(_.get(eventsList, 'workEvents', [])) !== _.size(this.workEvents)) { return false; } if (_.size(_.get(eventsList, 'lifeEvents', [])) !== _.size(this.workEvents)) { return false; } return true; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
nested IF
cascade if

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON and benchmark preparation code to understand what is being tested.

**Benchmark Definition**

The benchmark, titled "Nested vs Cascade", tests two different approaches for checking conditions in JavaScript: nested if statements versus cascaded if statements.

**Script Preparation Code**

The script preparation code defines an object `eventsList` that contains three arrays of event names:

* `groupEnrollmentEvents`
* `lifeEvents`
* `workEvents`

Additionally, it defines a variable `eventReasonLookup` with two values (`"1"` and `"2"`). The `workEvents` array is also defined twice in the code, which seems to be an error.

**Html Preparation Code**

The HTML preparation code includes a reference to the Lodash library version 4.17.5, which is used for its utility functions.

**Individual Test Cases**

There are two test cases:

1. **Nested IF**: This test case uses a nested if statement to check three conditions:
	* The size of `groupEnrollmentEvents` in `eventsList` is equal to the size of `eventReasonLookup` in the current context.
	* The size of `workEvents` in `eventsList` is equal to the size of `workEvents` in the current context.
	* The size of `lifeEvents` in `eventsList` is equal to the size of `lifeEvents` in the current context.
2. **Cascade IF**: This test case uses a cascaded if statement (i.e., an if statement that returns false as soon as any condition is not met) to check the same three conditions.

**Pros and Cons**

* Nested If:
	+ Pros: More readable and maintainable, especially for complex logic.
	+ Cons: Can be slower due to the overhead of nested function calls.
* Cascade If:
	+ Pros: Faster, since it can stop evaluating as soon as any condition is not met.
	+ Cons: Less readable and maintainable, especially for complex logic.

**Other Considerations**

Both approaches have their trade-offs. Nested if statements are often preferred for readability and maintainability, but may incur performance overhead due to nested function calls. Cascaded if statements are faster but less readable and maintainable, making them a good choice when speed is critical.

**Special JS Feature/Syntax**

This benchmark does not use any special JavaScript features or syntax, such as async/await, generators, or arrow functions.

**Alternatives**

Other approaches to checking conditions in JavaScript include:

* Using `===` for strict equality checks
* Using `!==` for loose equality checks
* Using `in` operator for membership testing
* Using bitwise operators for conditional checks (e.g., using `(x & 1) === 1` to check if a number is odd)

However, the nested and cascaded if statements tested in this benchmark are two common approaches that have their own trade-offs.

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36

Browser/OS: Chrome 117 on Windows

View result in a separate tab

Test name	Executions per second
nested IF	1318124.0 Ops/sec
cascade if	1315340.0 Ops/sec

Related benchmarks:

Nested vs Cascade (version: 1)

test

Comparing performance of: nested IF vs cascade if

Created: 3 years ago by: Registered User

Jump to the latest result

nested IF

cascade if

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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