Benchmark: if check object vs var

Script Preparation code:

var object = {a: false};
var myvar = false;

Tests:

object
if (object.a == false) {console.log('asdf')}
var
if (myvar == false) {console.log('asdf')}

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
object
var

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 7 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36

Browser/OS: Chrome 60 on Mac OS X 10.12.3

View result in a separate tab

Test name	Executions per second
object	138984.4 Ops/sec
var	138125.1 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON data for the MeasureThat.net benchmark.

**Benchmark Definition**

The benchmark definition is a simple JavaScript function that checks if the value of `object.a` or `myvar` (a variable) is equal to `false`. The goal is to compare the performance of using an object (`object`) versus a variable (`myvar`) in this specific context.

**Script Preparation Code and Html Preparation Code**

The script preparation code sets up two variables: `object` with a nested property `a` set to `false`, and `myvar` also set to `false`. The html preparation code is empty, which means that no additional HTML elements are being prepared for the benchmark.

**Options Compared**

In this benchmark, we have two options compared:

1. **Object access (`object.a == false`)**: This option uses an object property to check the value.
2. **Variable comparison (`myvar == false`)**: This option uses a variable to check the value.

**Pros and Cons of Each Approach**

* **Object access**:
	+ Pros: Can be more readable and maintainable when working with complex data structures or objects.
	+ Cons: May be slower due to the overhead of accessing an object property, especially if it's nested deep within the object.
* **Variable comparison**:
	+ Pros: Typically faster since it doesn't involve accessing an object property. However, it may not be as readable and maintainable for complex data structures.
	+ Cons: Can lead to unexpected behavior or errors if the variable is reassigned or goes out of scope.

**Library Used**

In this benchmark, no external libraries are used.

**Special JS Feature/Syntax**

None mentioned in the provided code snippet.

**Benchmark Results**

The latest benchmark results show that:

* **Object access** (`object.a == false`) took 138984.359375 executions per second.
* **Variable comparison** (`myvar == false`) took 138125.109375 executions per second.

These results suggest that using an object property to check a value might be slightly slower than using a variable in this specific context.

**Other Alternatives**

If you were to implement a similar benchmark, you could consider adding additional options, such as:

* Using `===` for strict equality comparison (e.g., `object.a === false`)
* Using a function with the `this` keyword (e.g., `function check() { return this.a == false; }`)
* Using a more complex data structure, like an array or a custom object
* Adding additional variables or properties to the object or variable being checked

Related benchmarks:

if check object vs var (version: 0)

Comparing performance of: object vs var

Created: 7 years ago by: Guest

Jump to the latest result

object

var

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):