Benchmark: == vs === - MeasureThat.net

Script Preparation code:

var testArray = new Array(100000000);

Tests:

==
testArray.forEach(() => 0 == "false")
===
testArray.forEach(() => 0 === "false")

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
==
===

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Safari/605.1.15

Browser/OS: Safari 14 on Mac OS X 10.15.6

View result in a separate tab

Test name	Executions per second
==	0.4 Ops/sec
===	0.4 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down what's being tested in the provided benchmark.

**Benchmark Definition**

The benchmark measures the performance difference between two JavaScript operators: `==` (loose equality) and `===` (strict equality).

**Options Compared**

There are two options compared:

1. `==` (loose equality): This operator checks if the values of both variables are equal, without considering their data types.
2. `===` (strict equality): This operator checks if the values and data types of both variables are equal.

**Pros and Cons of Each Approach**

* `==` (loose equality):
	+ Pros: More forgiving when dealing with implicit type conversions, which can make code more readable.
	+ Cons: Can lead to unexpected behavior if not used carefully, as it may perform type conversions that weren't intended by the developer.
* `===` (strict equality):
	+ Pros: Provides a more precise comparison, reducing the risk of unexpected behavior due to implicit type conversions.
	+ Cons: May require more explicit casting or conversion, which can make code less readable.

**Other Considerations**

In general, it's recommended to use `===` for comparisons that require strict equality, while using `==` when working with implicit type conversions is acceptable. However, the choice ultimately depends on the specific use case and personal preference.

**Library Used (if any)**

None of the benchmark cases explicitly uses a library.

**Special JavaScript Features or Syntax**

There are no special JavaScript features or syntax mentioned in the provided benchmark definition or test cases.

**Alternatives**

Other alternatives to measure equality comparisons include:

* Using `===` with explicit casting, such as `(0 === "false")`
* Using a library like Lodash's `isEqual()` function
* Implementing custom equality checks using a function like `isEqual(a, b)`

Related benchmarks:

== vs === (version: 0)

Comparing performance of: == vs ===

Created: 3 years ago by: Guest

Jump to the latest result

==

===

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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