Benchmark: find vs for - MeasureThat.net

Script Preparation code:

var draw, fill, rectangle, pick;
var baseTools = {draw, fill, rectangle, pick};

Tests:

find
let shortcut = Object.keys(baseTools).find(t => t[0] == "f"); if (shortcut){ console.log(shortcut) }
for
for (let tool of Object.keys(baseTools)) { if (tool[0] == "f") { console.log(tool); return ; } }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
find
for

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 provided JSON and explain what is tested on the website MeasureThat.net.

**Benchmark Definition**

The benchmark is comparing two approaches to achieve a similar result:

1. Using the `find()` method: This approach uses the `Object.keys()` function to get an array of keys from the `baseTools` object, and then calls the `find()` method on this array to find the first key that matches the condition (`t[0] == "f"`). The result is stored in the `shortcut` variable.
2. Using a traditional `for` loop: This approach iterates over each key in the `baseTools` object and checks if the first character of the key is equal to `"f"`. If it is, the value of the key is logged to the console.

**Options Compared**

The two options being compared are:

* Using the `find()` method with an arrow function (`let shortcut = Object.keys(baseTools).find(t => t[0] == "f");`)
* Using a traditional `for` loop (`for (let tool of Object.keys(baseTools)) { ... }`)

**Pros and Cons**

**Find() Method:**

Pros:

* Concise and expressive code
* Efficient, as it stops iterating over the array as soon as it finds a match

Cons:

* May not be supported in older browsers or versions of JavaScript (e.g., `find()` was introduced in ECMAScript 2015)
* Requires modern JavaScript features and syntax

**Traditional For Loop:**

Pros:

* Widely supported across all browsers and versions of JavaScript
* Easy to understand and maintain for developers familiar with traditional loops

Cons:

* Longer code snippet
* May be slower due to the overhead of iterating over the array

**Library Used**

None. The benchmark uses built-in JavaScript methods and syntax.

**Special JS Feature/Syntax**

The `find()` method uses a feature that was introduced in ECMAScript 2015 (ES6). This is an arrow function, which allows for concise and expressive code. However, if you're targeting older browsers or versions of JavaScript, this may not be supported.

**Other Alternatives**

If the developers want to compare other approaches, they could add additional test cases using:

* `some()` method instead of `find()`: This would also iterate over the array but stop as soon as it finds a match that meets the condition.
* Using `reduce()` function: This would accumulate values while iterating over the array, which might be useful in certain scenarios.

However, adding these alternatives would require modifying the benchmark definition and test cases to accommodate the new syntax and methods.

Related benchmarks:

find vs for (version: 0)

Comparing performance of: find vs for

Created: 7 years ago by: Guest

Jump to the latest result

find

for

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):