Benchmark: Assign vs Destructuring

Tests:

Assign
const myObj = { one: "one", two: "two", three: "three" }; function foo(myObj){ return { one: myObj.one, two: myObj.two, three: myObj.three } } const result = foo(myObj);
Destructure
const myObj = { one: "one", two: "two", three: "three" }; function foo(myObj){ const {one, two, three} = myObj; return { one: one, two: two, three: three } } const result = foo(myObj);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Assign
Destructure

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 break down the benchmark and explain what's being tested.

**Benchmark Overview**

The benchmark is testing two approaches for assigning values from an object to a new object: using assignment (`Assign`) versus destructuring (`Destructure`).

**Option Comparison**

There are two options being compared:

1. **Assignment (Assign)**: This approach uses the `=` operator to assign values from the original object (`myObj`) to the returned object.
2. **Destructuring (Destructure)**: This approach uses the syntax `{variable: value}` to extract values from the original object and assigns them to variables, which are then used to construct the new object.

**Pros and Cons**

* **Assignment (Assign)**
	+ Pros:
		- Easy to understand and implement
		- Works well for simple cases
	+ Cons:
		- Can lead to repeated property names in the resulting object
		- May not be as efficient due to the need for multiple assignments
* **Destructuring (Destructure)**
	+ Pros:
		- More concise and expressive
		- Reduces the likelihood of duplicate property names
	+ Cons:
		- Requires a good understanding of object syntax and destructuring
		- Can be less efficient due to the overhead of parsing and evaluating expressions

**Library and Special JS Features**

Neither option explicitly uses a library, but they do utilize some special JavaScript features:

* **Object Literals**: Both options use object literals (`{ ... }`) to define objects.
* **Function Declarations**: Both options use function declarations (`function foo() { ... }`) to define functions.

However, the `Destructuring (Destructure)` option uses a more advanced feature: object destructuring syntax (`const { variable, value } = obj;`).

**Other Considerations**

When choosing between assignment and destructuring, consider the following factors:

* Code readability and maintainability
* Performance considerations (e.g., cache misses or unnecessary computations)
* Personal preference and coding style

If you're interested in exploring alternative approaches, some other options include:

* Using a library like Lodash or Ramda to simplify object manipulation
* Employing functional programming techniques with objects
* Utilizing ES6+ features like `Spread Operator` (`{ ... }`) or template literals (`${expression}`)

Related benchmarks:

Assign vs Destructuring (version: 0)

Comparing performance of: Assign vs Destructure

Created: 4 years ago by: Guest

Jump to the latest result

Assign

Destructure

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):