Benchmark: for...of vs find

Tests:

for...of
const userCity = "sultanpur"; const userState = "uttar pradesh"; const userCountry = "india"; const values = [{ city: "pune", state: "maharashtra", country: "india" }, { city: "mumbai", state: "maharashtra", country: "india" }, { city: "sultanpur", state: "uttar pradesh", country: "india" }, ]; for (const { city, state, country } of values) { if (userCity === city && userState === state && userCountry === country) { return true; } }
find
const userCity = "sultanpur"; const userState = "uttar pradesh"; const userCountry = "india"; const values = [{ city: "pune", state: "maharashtra", country: "india" }, { city: "mumbai", state: "maharashtra", country: "india" }, { city: "sultanpur", state: "uttar pradesh", country: "india" }, ]; values.find(({ city, state, country }) => { return userCity === city && userState === state && userCountry === country; });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
for...of
find

Fastest: N/A

Slowest: N/A

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

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Let's break down what is being tested in this benchmark.

**Overview**

The benchmark compares the performance of two approaches to find a specific object within an array: using the `for...of` loop and using the `find()` method.

**What is being tested?**

* The `for...of` loop will iterate over each element in the `values` array, destructure it into variables `city`, `state`, and `country`, and check if they match the values of the `userCity`, `userState`, and `userCountry` variables. If a match is found, the function returns `true`.
* The `find()` method will search for an object within the `values` array that matches the condition specified in the callback function.

**Options compared**

The benchmark compares two approaches:

1. **For...of loop**: Iterates over each element in the array using a `for...of` loop, destructure it into variables, and checks if they match the desired values.
2. **Find() method**: Uses the `find()` method to search for an object within the array that matches the condition specified in the callback function.

**Pros and cons of each approach**

* **For...of loop**:
	+ Pros:
		- Can be more efficient if you need to perform multiple checks on each element.
		- Allows for early exit if the desired value is not found.
	+ Cons:
		- More verbose code, especially for complex conditions.
		- May require additional memory allocation for the loop variables.
* **Find() method**:
	+ Pros:
		- Concise and readable code.
		- Eliminates the need for explicit looping.
	+ Cons:
		- Can be slower due to the overhead of the `find()` method.
		- May not be suitable for very large arrays, as it may consume more memory.

**Library usage**

In this benchmark, no libraries are explicitly mentioned. However, it's worth noting that the `for...of` loop uses a feature called "iteration" which was introduced in ECMAScript 2015 (ES6). Similarly, the `find()` method is a built-in JavaScript method.

**Special JS features/syntax**

The benchmark uses a few special JavaScript features:

* **For...of loop**: This loop is a new way of iterating over arrays and objects. It allows for easier iteration and destructure.
* **Find() method**: The `find()` method is a built-in JavaScript method that searches for an object within an array that satisfies a provided condition.

**Other alternatives**

If you don't want to use the `for...of` loop or the `find()` method, here are some alternative approaches:

* **Manual looping**: Use a traditional `for` loop to iterate over the array and check each element manually.
* **Filter() method**: Use the `filter()` method to create a new array with only the elements that match the condition.

However, these alternatives might not be as efficient or concise as using the `for...of` loop or the `find()` method.

Related benchmarks:

for...of vs find (version: 0)

Comparing performance of: for...of vs find

Created: 3 years ago by: Guest

Jump to the latest result

for...of

find

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):