Benchmark: LoDash Omit vs Destructured undefined vs delete

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.js"></script>

Script Preparation code:

var black = 'black'
var green = 'green'
var orange = 'orange'
var red = 'red'
var darkRed = 'darkRed'
var blue = 'blue'
var lightBlue = 'lightBlue'
var navy = 'navy'

var basePalette = {
	black,
  green,
  orange,
  red,
  darkRed,
  blue,
  lightBlue,
  navy
}

Tests:

Native Destructure
var { orange: undefined, red: undefined, darkRed: undefined, ...coldPalette } = basePalette
LoDash Omit
_.omit(basePalette, ['orange','red', 'darkRed'])
LoDash Pick
_.pick(basePalette, ['blue', 'lightBlue', 'navy', 'black', 'green'])
Delete
delete basePalette.orange delete basePalette.red delete basePalette.darkRed

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native Destructure
LoDash Omit
LoDash Pick
Delete

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

To explain the provided benchmark, I'll break it down into sections.

**Benchmark Description**
The test is designed to compare three different approaches for removing or omitting properties from an object:

1.  **Native Destructuring**: This approach uses JavaScript's native destructuring feature to create a new object with only the desired properties.
2.  **LoDash Omit**: LoDash is a utility library that provides various functions, including `omit`, which removes specified keys from an object. In this test, it's used to remove specific properties from the `basePalette` object.
3.  **Delete**: This approach uses the `delete` operator to delete individual properties from the `basePalette` object.

**Options Compared**

*   Native Destructuring
*   LoDash Omit
*   Delete

**Pros and Cons of Each Approach:**

1.  **Native Destructuring**:
    *   Pros:
        *   Efficient, as it doesn't create a new object.
        *   Uses native JavaScript features, which are typically faster than library functions.
    *   Cons:
        *   Limited to objects with only the desired properties; if there are other properties present, they will be ignored.
        *   May not work as expected in certain situations (e.g., when using arrow functions or async/await).
2.  **LoDash Omit**:
    *   Pros:
        *   Flexible and works well for objects with any number of properties.
        *   Can be easily chained with other LoDash functions.
    *   Cons:
        *   Requires the LoDash library, which may add an extra dependency.
        *   May be slower than native destructuring due to the overhead of a library function.
3.  **Delete**:
    *   Pros:
        *   Simple and straightforward; works well for deleting individual properties.
    *   Cons:
        *   Inefficient, as it involves multiple operations (assigning `undefined` to each property) for each property being deleted.
        *   Can lead to issues if the object is used as a key in another data structure or passed to a function that expects an object.

**Libraries and Special Features:**

*   LoDash: A utility library providing various functions, including `omit`, which removes specified keys from an object. LoDash is often used for its convenience and ease of use.
*   Native Destructuring: Uses JavaScript's native feature, which may not be immediately apparent to all developers due to its subtlety.

**Other Alternatives:**

1.  **Other LoDash functions:** Instead of `omit`, you could also consider using other LoDash functions like `pick` (removing unwanted properties) or `difference` (calculating the difference between two objects).
2.  **Built-in Object.prototype**: Some developers might prefer to use built-in methods, such as `Object.keys()` and `Object.assign()`, to achieve similar results.

In conclusion, this benchmark compares three approaches for removing properties from an object: native destructuring, LoDash's `omit` function, and the `delete` operator. While each has its pros and cons, native destructuring is likely the most efficient approach, followed by LoDash's `omit` function. The `delete` operator can be used in certain situations but may not be the best choice due to its inefficiency.

For those without deep knowledge of JavaScript, understanding these approaches can help you make informed decisions about which method to use depending on your specific requirements and preferences.

Related benchmarks:

LoDash Omit vs Destructured undefined vs delete (version: 0)

Testing LoDash's omit function against Destructured undefined against delte

Comparing performance of: Native Destructure vs LoDash Omit vs LoDash Pick vs Delete

Created: 3 years ago by: Guest

Jump to the latest result

Native Destructure

LoDash Omit

LoDash Pick

Delete

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):