Benchmark: Lodash get vs isNil

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.15/lodash.min.js"></script>

Script Preparation code:

var data = {
    person: {
        name: 'john',
        surname: 'doe',
        body: {
            weight: 22,
            height: 44
        }
    }
};

Tests:

Lodash get
console.log(_.get(data, 'person.body.weight', ''));
isNil
console.log(!_.isNil(data) && !_.isNil(data.person) && !_.isNil(data.person.weight) ? data.person.body.weight : "")

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash get
isNil

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.

Let's break down the provided benchmarking scenario.

**What is being tested?**

The provided JSON represents two test cases that compare the performance of two Lodash functions: `_get` and `isNil`.

The first test case, "Lodash get", tests the execution time of the `_get` function from Lodash. The function is called with a string path to access a nested property in an object (`data.person.body.weight`). The `_get` function returns the value at the specified path if it exists, and an empty string otherwise.

The second test case, "isNil", tests the execution time of the `isNil` function from Lodash. This function checks whether a value is null or undefined.

**Options compared**

The two options being compared are:

1. `_get` (Lodash's object accessor function)
2. `isNil` (Lodash's nil-checking function)

These functions have different use cases and may be implemented differently under the hood, even though they share a similar name and syntax.

**Pros and cons of each approach**

1. `_get`:
	* Pros: Efficient for accessing nested properties in objects, can handle multiple levels of nesting.
	* Cons: May require more memory to store the object references internally.
2. `isNil`:
	* Pros: Lightweight and efficient, only checks if a value is null or undefined.
	* Cons: May not be as convenient for complex checks or nested property access.

**Other considerations**

When choosing between `_get` and `isNil`, consider the specific use case:

* If you need to access a deeply nested property in an object, `_get` might be a better choice due to its ability to handle multiple levels of nesting.
* If you only need to check if a value is null or undefined, `isNil` might be sufficient.

**Special JS feature/syntax**

There isn't any special JavaScript feature or syntax being used in this benchmark. The Lodash functions are standard JavaScript methods.

**Alternatives**

If you prefer not to use Lodash, you could implement these functions yourself using standard JavaScript syntax:

* `_get`: `function get(obj, path, defaultValue) { return path.split('.').reduce((value, key) => value && value[key], obj); }`
* `isNil`: `function isNil(value) { return value === null || value === undefined; }`

However, keep in mind that these custom implementations may not be as efficient or convenient to use as the Lodash versions.

The benchmarking scenario provides a good example of how different JavaScript functions can have varying performance characteristics. By comparing these functions, developers can make informed decisions about which approach to take for specific use cases.

Related benchmarks:

Lodash get vs isNil (version: 2)

Comparing performance of: Lodash get vs isNil

Created: 6 years ago by: Registered User

Jump to the latest result

Lodash get

isNil

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):