Benchmark: Math.min vs if/else vs ternary operator vs assing first

Script Preparation code:

this.numberA = Math.random() * 1000;
this.numberB = Math.random() * 1000;

Tests:

Math.min
return Math.min(this.numberA, this.numberB);
if
if (this.numberA < this.numberB) return this.numberA; else return this.numberB;
ternary
return (this.numberA < this.numberB) ? this.numberA : this.numberB
assing first
var min = this.numberB; if (this.numberA < this.numberB) min = this.numberA; return min;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Math.min
if
ternary
assing first

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one month ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:148.0) Gecko/20100101 Firefox/148.0

Browser/OS: Firefox 148 on Windows

View result in a separate tab

Test name	Executions per second
Math.min	38920732.0 Ops/sec
if	330819488.0 Ops/sec
ternary	290564672.0 Ops/sec
assing first	238765120.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and its components.

**Benchmark Definition JSON**

The benchmark definition represents a single test case, which is to find the quickest operation to return the smaller of two numbers (`this.numberA` and `this.numberB`). The benchmark has four options:

1. **Math.min**: Uses the built-in JavaScript function `Math.min()` to find the smallest number.
2. **if/else**: Uses a conditional statement to compare the numbers and return the smaller one if the first number is smaller, otherwise returns the second number.
3. **ternary operator**: Uses a ternary operator (`? :`) to concisely express the same logic as the `if/else` statement.
4. **assing first**: Assigns the value of `this.numberA` to a variable `min` and then updates `min` if `this.numberB` is smaller, finally returning the assigned value.

**Comparison**

* **Math.min**: This method uses a built-in function that has likely been optimized for performance by JavaScript engines. It's likely to be the fastest option.
* **if/else**: This approach requires more instructions and checks, making it slower compared to `Math.min`.
* **ternary operator**: While concise, this approach still involves an extra instruction and comparison, making it slightly faster than `if/else` but likely slower than `Math.min`. The ternary operator is also less readable than the traditional `if/else` statement.
* **assing first**: This approach requires additional assignments and checks, making it the slowest option.

**Pros and Cons**

* **Math.min**: Pros: Fast, efficient, and optimized by JavaScript engines. Cons: May not be as readable or maintainable due to its simplicity.
* **if/else**: Pros: Easy to understand and maintain, can be more readable than other options. Cons: Slower due to additional instructions and checks.
* **ternary operator**: Pros: Concise and easy to read, but still involves an extra instruction. Cons: Slightly slower than `if/else`.
* **assing first**: Pros: Easy to understand, can be more maintainable due to its clear logic flow. Cons: Slowest option due to additional assignments and checks.

**Library Usage**

None of the provided options use a library specifically for this benchmark.

**Special JavaScript Features or Syntax**

None of the provided options utilize any special JavaScript features or syntax that would affect their performance or interpretation.

Now, let's talk about alternatives:

* For more complex benchmarks, you could consider using libraries like BenchmarkJS or micro-benchmarking frameworks.
* If you need to compare different versions of a library or framework, you might want to use a testing suite like Jest or Mocha.
* For measuring the performance of specific JavaScript features or syntax, you can use tools like V8 Inspector or Chrome DevTools.

Keep in mind that the best approach for your benchmark will depend on your specific needs and goals.

Related benchmarks:

Math.min vs if/else vs ternary operator vs assing first (version: 0)

Quickest operation to return smaller of 2 numbers

Comparing performance of: Math.min vs if vs ternary vs assing first

Created: 2 years ago by: Guest

Jump to the latest result

Math.min

if

ternary

assing first

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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