Benchmark: big object vs if statements

Tests:

big object
const typography = {} const lineHeight = 10; const textColor = 'red'; const align = "left"; const transform = '' const underline = undefined; const strokeThrough = undefined; const fn = () => ({ ...typography, lineHeight, color: textColor, textAlign: align, textTransform: transform, ...(underline && { ...defaultStyles.underline, textDecorationColor: textColor, }), ...(strokeThrough && { ...defaultStyles.strokeThrough, textDecorationColor: textColor, }), }) fn()
if
const typography = {} const lineHeight = 10; const textColor = 'red'; const align = "left"; const transform = '' const underline = undefined; const strokeThrough = undefined; const fn = () => { const resp = { lineHeight, color: textColor, textAlign: align, textTransform: transform, }; if(underline) { resp.underline=truel } if(strokeThrough) { resp.strokeThrouh = true } return Object.assign(typography, resp) } fn()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
big object
if

Fastest: N/A

Slowest: N/A

Latest run results:

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

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Let's dive into the benchmark and explain what's being tested, the options compared, pros and cons of each approach, and other considerations.

**What's being tested?**

The benchmark is comparing two approaches to creating and manipulating an object in JavaScript:

1. **Big Object Approach**: This involves creating a large object with multiple properties using the spread operator (`...`). The object is created by merging multiple smaller objects, which can result in a dense and complex data structure.
2. **If-Statement Approach**: This approach uses if-statements to conditionally add or modify properties of an existing object.

**Options compared**

The two approaches are being compared for their performance:

* Big Object Approach: Creates a large object with multiple properties using the spread operator (`...`).
* If-Statement Approach: Uses if- statements to conditionally add or modify properties of an existing object.

**Pros and Cons**

Here's a brief summary of the pros and cons of each approach:

**Big Object Approach**

Pros:

* Can lead to more concise and readable code
* Can be useful for creating complex data structures

Cons:

* Can result in large, dense objects that may not scale well
* May incur performance overhead due to object creation and manipulation

**If-Statement Approach**

Pros:

* Can help avoid creating unnecessary objects or modifying existing ones unnecessarily
* Can lead to more explicit and controlled code

Cons:

* May be less concise than the big object approach
* Can result in repetitive code if multiple conditions need to be checked

**Other considerations**

* **Object creation**: Creating a large object using the spread operator can involve additional overhead due to object creation, property lookup, and iteration. In contrast, the if-statement approach involves direct property manipulation, which may be faster.
* **Property access**: When working with large objects, accessing properties using bracket notation (`obj[propertyName]`) can be slower than accessing them directly using dot notation (`obj.propertyName`).
* **Browser support**: The benchmark results show that Chrome 108 on Mac OS X 10.15.7 favors the big object approach, but this may vary across different browsers and platforms.

**Library usage**

There is no explicit library mentioned in the benchmark definition or test cases.

**Special JS feature or syntax**

The `...` spread operator is used to create the large object. This is a modern JavaScript feature introduced in ECMAScript 2015 (ES6).

**Alternative approaches**

Some alternative approaches that could be considered for this benchmark include:

* **Object literal**: Instead of using the spread operator, creating the object using an object literal (`const obj = { ... }`) would eliminate the need for the spread operator.
* **Constructor function**: Using a constructor function to create objects can provide additional benefits such as automatic property initialization and prototype chaining.
* **Array-based approach**: Instead of using objects, creating arrays with multiple elements could be used instead. This might lead to different performance characteristics due to array vs object operations.

Keep in mind that these alternative approaches may not directly address the question being asked (big object vs if statements) but can provide additional insights into object creation and manipulation in JavaScript.

Related benchmarks:

big object vs if statements (version: 0)

Comparing performance of: big object vs if

Created: 3 years ago by: Guest

Jump to the latest result

big object

if

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):