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Lodash get vs. native solutions
(version: 4)
Comparing performance of:
_,get, sloppy vs _.get, smarter vs native, no protection vs native, some protection
Created:
6 years ago
by:
Registered User
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HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Tests:
_,get, sloppy
const props = { stops: [ { location: { address: '123 Main Street', }, }, ], }; for (let i = 0; i < 50; i++) { const address = _.get(props, 'stops[0].location.address'); }
_.get, smarter
const props = { stops: [ { location: { address: '123 Main Street', }, }, ], }; for (let i = 0; i < 50; i++) { const address = _.get(props.stops[0].location, 'address'); }
native, no protection
const props = { stops: [ { location: { address: '123 Main Street', }, }, ], }; for (let i = 0; i < 50; i++) { const address = props.stops[0].location.address; }
native, some protection
const props = { stops: [ { location: { address: '123 Main Street', }, }, ], }; for (let i = 0; i < 50; i++) { const address = props.stops && props.stops[0].location.address; }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (4)
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Test case name
Result
_,get, sloppy
_.get, smarter
native, no protection
native, some protection
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net. **Benchmark Overview** The provided benchmark compares four approaches to accessing an object property in JavaScript: 1. Using Lodash's `_.get()` method 2. Using Lodash's `_.get()` method with a "smarter" approach (not specified in the documentation) 3. Directly accessing the property using dot notation (`native, no protection`) 4. Directly accessing the property using dot notation, but checking for existence before accessing (`native, some protection`) **Lodash `_get()` Method** The Lodash library is a popular utility library that provides various helper functions for tasks such as string manipulation, array and object manipulation, and more. The `_.get()` method is used to safely access nested properties in an object. In the benchmark, Lodash's `_.get()` method is used in two ways: * With "sloppy" syntax: `const address = _.get(props, 'stops[0].location.address');` * With a "smarter" approach (not specified in the documentation): `const address = _.get(props.stops[0].location, 'address');` The pros of using Lodash's `_get()` method include: * Providing a safe and efficient way to access nested properties * Handling edge cases such as null or undefined values However, there are also some cons: * Introducing additional overhead due to the library call * Potentially introducing additional complexity in complex data structures **Direct Access with Dot Notation** The "native, no protection" approach uses direct dot notation to access the property: ```javascript const address = props.stops[0].location.address; ``` This approach is simple and straightforward but may not be as safe or efficient as using Lodash's `_get()` method. Pros: * Minimal overhead due to no library call * Simple and easy to read code Cons: * May throw errors if the property does not exist or is null/undefined * May not handle edge cases such as nested properties **Direct Access with Dot Notation and Existence Check** The "native, some protection" approach uses direct dot notation but adds an existence check: ```javascript const address = props.stops && props.stops[0].location.address; ``` This approach balances the simplicity of direct dot notation with the safety of checking for existence before accessing. Pros: * Minimal overhead due to no library call * Adds safety by checking for existence before accessing Cons: * May not be as efficient as using Lodash's `_get()` method due to the additional existence check * May not handle edge cases such as nested properties **Other Alternatives** If you need to access nested properties in JavaScript, other alternatives include: * Using bracket notation (e.g., `props['stops[0].location.address']`) * Using a recursive function to traverse the object structure * Using a library like Immutable.js or deep-object to handle complex data structures However, these alternatives may introduce additional complexity and overhead compared to using Lodash's `_get()` method.
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