Benchmark: if else vs return

Script Preparation code:

function sayHello1(name) {
  if(name.length > 10) {
     return "Wow ${name}, you have a very long name."
  } else {
     return "Hello, ${name}!"
  }
}

function sayHello2(name) {
  if(name.length <= 10) return "Hello, ${name}!"
  return "Wow ${name}, you have a very long name."
}

Tests:

if else
sayHello1('janry')
return
sayHello2('janry')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
if else
return

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Mobile Safari/537.36

Browser/OS: Chrome Mobile 120 on Android

View result in a separate tab

Test name	Executions per second
if else	3999847.8 Ops/sec
return	3999541.2 Ops/sec

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

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark definition and test cases to explain what's being tested, compared, and analyzed.

**Benchmark Definition JSON**

The `Script Preparation Code` section defines two functions: `sayHello1` and `sayHello2`. Both functions contain an `if-else` statement that returns a greeting message based on the length of the input `name`.

*   `sayHello1`: Returns "Wow ${name}, you have a very long name." if `name.length > 10`, otherwise returns "Hello, ${name}!".
*   `sayHello2`: Returns "Hello, ${name}!" if `name.length <= 10`, and returns the longer message ("Wow ${name}, you have a very long name.") otherwise.

**Comparison of Options**

Two options are being compared:

1.  **`if-else` statement**: The first option, represented by `sayHello1`.
2.  **Return statements with conditional logic**: The second option, represented by `sayHello2`.

**Pros and Cons of Each Approach**

*   **`if-else` statement (sayHello1)**:
    *   Pros: More explicit control flow, easier to understand for complex conditions.
    *   Cons: Can be slower due to the need to evaluate the condition and then execute the corresponding branch.
*   **Return statements with conditional logic (sayHello2)**:
    *   Pros: Can lead to cleaner and more concise code, potentially faster since it avoids unnecessary branches.
    *   Cons: May make the intent of the code less clear for complex conditions.

**Library Usage**

Neither test case uses any external libraries. The focus is on comparing the performance of different control flow approaches within a simple JavaScript function.

**Special JS Feature/Syntax (None)**

There are no special JavaScript features or syntaxes used in this benchmark, such as async/await, promise handling, or advanced JavaScript language constructs like ES6 arrow functions or destructuring. The test cases focus solely on the comparison of `if-else` and return statements.

**Alternative Approaches**

Other alternatives to compare could include:

*   **Switch statement**: Similar to `if-else`, but for multiple conditions.
*   **Loop-based approaches**: Using loops instead of conditional logic, like `while` or `for` loops, to generate the same output.
*   **Recursive functions**: Using recursive function calls to achieve the desired result.

Keep in mind that these alternative approaches may not be directly comparable to the `if-else` and return statement scenarios presented here.

Related benchmarks:

if else vs return (version: 0)

Comparing performance of: if else vs return

Created: 2 years ago by: Guest

Jump to the latest result

if else

return

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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