Benchmark: dsgfhtere453egrfv

Script Preparation code:

var nullValue = null;
var undefinedValue;
var trueValue = true;

Tests:

Nullish coalescing
(nullValue ?? undefinedValue ?? trueValue);
Logical OR
(nullValue || undefinedValue || trueValue);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Nullish coalescing
Logical OR

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Let's break down the benchmark and explain what's being tested.

The provided JSON represents a JavaScript microbenchmark, which is a small program designed to measure the performance of specific JavaScript features or libraries. In this case, there are two test cases: "Nullish coalescing" and "Logical OR".

**Options Being Compared**

In both test cases, we have three options being compared:

1. `nullValue`
2. `undefinedValue`
3. `trueValue`

The nullish coalescing test checks the performance of using the nullish coalescing operator (`??`) to resolve these values. The logical OR test checks the performance of using the logical OR operator (`||`).

**Pros and Cons of Different Approaches**

**Nullish Coalescing Operator (??)**

* Pros:
	+ More modern and efficient way to handle null or undefined values.
	+ Avoids unnecessary comparisons with `if` statements.
* Cons:
	+ May be less readable for some developers, especially those who are not familiar with this operator.
	+ Requires a modern JavaScript engine that supports this operator (most modern browsers and Node.js versions do).

**Logical OR Operator (`||`)**

* Pros:
	+ Widely supported and easily readable by most developers.
	+ Works in older JavaScript engines.
* Cons:
	+ May be slower than the nullish coalescing operator, especially for more complex expressions.

**Other Considerations**

In both test cases, we're using a simple script that assigns values to variables. The actual benchmarking comes from the way these variables are used in the expression.

For example, in the "Nullish Coalescing" test, the expression `(nullValue ?? undefinedValue ?? trueValue)` will try to resolve `undefinedValue` if `nullValue` is not null or undefined, and then use `trueValue` if `undefinedValue` is also not defined. This requires a single comparison operation, which can be faster than using logical OR (`||`).

In the "Logical OR" test, the expression `(nullValue || undefinedValue || trueValue)` will perform three separate comparisons to determine the truthiness of each value.

**Library or Special JS Feature Used**

Neither of these test cases uses any specific library. However, they do utilize a modern JavaScript feature: nullish coalescing (`??`).

Nullish coalescing is a relatively new operator introduced in ECMAScript 2020 (ES12). It allows you to use the nullish coalescing operator to handle null or undefined values in a more concise way.

**Other Alternatives**

If you're interested in testing other JavaScript features or libraries, here are some alternatives:

* For async/await syntax: You can modify the script preparation code to include an async function that uses await.
* For strict mode: You can add the `strict` option to the benchmark definition and use strict mode functions like `with (strict) { ... }`.
* For specific libraries or frameworks: You can replace the script preparation code with code that uses a library like React, Angular, or Vue.js.

Keep in mind that each alternative will require modifications to the benchmark definition and test cases.

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:77.0) Gecko/20100101 Firefox/77.0

Browser/OS: Firefox 77 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
Nullish coalescing	94514312.0 Ops/sec
Logical OR	101892040.0 Ops/sec

Related benchmarks:

dsgfhtere453egrfv (version: 0)

Comparing performance of: Nullish coalescing vs Logical OR

Created: 4 years ago by: Guest

Jump to the latest result

Nullish coalescing

Logical OR

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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