Benchmark: ternary vs if in loop

Tests:

ternary
for (let i = 0; i < 1000; i++) { const rnd = Math.random(); const value = rnd < .5 ? 'min' : 'max' }
if
for (let i = 0; i < 1000; i++) { const rnd = Math.random(); let value; if (rnd < .5) { value = 'min'; } else { value = 'max'; } }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
ternary
if

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (X11; CrOS x86_64 14541.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Browser/OS: Chrome 126 on Chrome OS 14541.0.0

View result in a separate tab

Test name	Executions per second
ternary	51657.0 Ops/sec
if	49546.0 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 explain what is being tested, compared, and other considerations.

**Benchmark Definition JSON**

The provided `Benchmark Definition` JSON defines two test cases:

1. "ternary vs if in loop"
2. Another test case is not defined, but we can infer it from the script preparation code provided later.

**Test Case 1: Ternary vs If**

This test case compares the performance of using a ternary operator (`ternary`) versus an if-else statement (`if`).

**Script Preparation Code**
```javascript
for (let i = 0; i < 1000; i++) {
  const rnd = Math.random();
  const value = rnd < .5 ? 'min' : 'max';
}
```
This script generates 1000 iterations, where `Math.random()` is used to generate a random number between 0 and 1. If the number is less than 0.5, the variable `value` is assigned the string `'min'`; otherwise, it's assigned `'max'`.

**Script Preparation Code for Test Case 2 ( inferred )**
```javascript
for (let i = 0; i < 1000; i++) {
  const rnd = Math.random();
  let value;
  if (rnd < .5) {
    value = 'min';
  } else {
    value = 'max';
  }
}
```
This script is similar to the first one, but uses an if-else statement to assign the value.

**Comparison**

The test case compares the performance of these two approaches:

1. Ternary operator (`ternary`): `const value = rnd < .5 ? 'min' : 'max';`
2. If-else statement (`if`): `let value; if (rnd < .5) { value = 'min'; } else { value = 'max'; }`

**Pros and Cons**

1. **Ternary operator**:
	* Pros: concise, expressive, and easy to read.
	* Cons: may not be as readable for complex conditions or multiple assignments.
2. **If-else statement**:
	* Pros: more readable for complex conditions or multiple assignments.
	* Cons: longer, less concise, and may require more lines of code.

**Other Considerations**

1. **Library usage**: Neither test case uses any libraries.
2. **Special JS feature/syntax**: No special features are used in this benchmark.
3. **Alternative approaches**: Other alternatives could include using arrow functions, template literals, or other conditional statements (e.g., `switch`).

**Benchmark Result**

The latest benchmark result shows the performance of both test cases:

| Test Name | ExecutionsPerSecond |
| --- | --- |
| ternary | 17937.40625 |
| if | 17617.529296875 |

This suggests that the ternary operator approach is slightly faster than the if-else statement approach.

Keep in mind that this benchmark is just one example, and performance differences may vary depending on the specific use case, platform, and other factors.

Related benchmarks:

ternary vs if in loop (version: 0)

Comparing performance of: ternary vs if

Created: 3 years ago by: Guest

Jump to the latest result

ternary

if

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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