Benchmark: operator && vs [].every(Boolean)

HTML Preparation code:

value1 && value2 && value3 && value4

Script Preparation code:

var size = 10000;

var arr1 = [];

for (var i = 0; i < size; i++){
  arr1.push({value1: 'value1', value2: 'value2', value3: 'value3', value4: 'value4'});
}

Tests:

operator &&
const filterItems1 = arr1.filter(item => { const { value1, value2, value3, value4 } = item; return value1 && value2 && value3 && value4; })
[].every(Boolean)
const filterItems2 = arr1.filter(item => { const { value1, value2, value3, value4 } = item; return [value1, value2, value3, value4].every(Boolean); })

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
operator &&
[].every(Boolean)

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 benchmark and its options.

**Benchmark Overview**

The benchmark is designed to compare the performance of two different approaches for filtering an array in JavaScript:

1. Using the `&&` operator (logical AND) with multiple values
2. Using the `every()` method with a boolean callback function

**Options Being Compared**

The two options being compared are:

1. **`operator &&`**: This approach uses the `&&` operator to filter the array. The logic is applied element-wise, meaning that if any of the elements in the array do not meet the condition (i.e., they don't have all four values), the entire expression will return `false`.
2. **`[] .every(Boolean)`**: This approach uses the `every()` method with a boolean callback function. The logic is applied element-wise, meaning that if any of the elements in the array do not meet the condition (i.e., they don't have all four values), the entire expression will return `false`.

**Pros and Cons of Each Approach**

1. **`operator &&`**:
	* Pros: Typically faster because it's a simple, bitwise operation.
	* Cons: Can be brittle if the order or number of conditions changes, as it relies on the operator's behavior.
2. **`[] .every(Boolean)`**:
	* Pros: More readable and maintainable than the `&&` approach, as the logic is explicitly stated in a loop.
	* Cons: Typically slower because it involves a loop and an additional function call.

**Library Used**

None mentioned, but `Array.prototype.filter()` and `Boolean` are part of the JavaScript standard library.

**Special JS Features or Syntax**

The test case uses no special features or syntax. The only notable feature is the use of arrow functions (`=>`) in the benchmark definitions, which were introduced in ECMAScript 2015 (ES6).

**Other Alternatives**

Some alternative approaches could be:

* Using `Array.prototype.filter()` with a callback function that returns a boolean value for each element.
* Using a custom filter function implemented in native code (if possible).
* Using parallel processing or multithreading to speed up the filtering operation.

Keep in mind that these alternatives would require additional modifications to the benchmark setup and may not be suitable for production use.

Related benchmarks:

operator && vs [].every(Boolean) (version: 0)

check logic operator && and array method every

Comparing performance of: operator && vs [].every(Boolean)

Created: 3 years ago by: Guest

Jump to the latest result

operator &&

[].every(Boolean)

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):