Benchmark: test 123 helloworld

HTML Preparation code:

<div id='helloworld'></div>

Script Preparation code:

var helloworld = document.getElementById("helloworld");

Tests:

addition + tostring
for(i=0;i<100;i++){ console.log("test123" + helloworld.toString()) }
concat
for(i=0;i<100;i++){ console.log("test123".concat(helloworld)) }
concat + toString
for(i=0;i<100;i++){ console.log("test123".concat(helloworld.toString())) }
addition
for(i=0;i<100;i++){ console.log("test123" + helloworld) }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
addition + tostring
concat
concat + toString
addition

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.85 Safari/537.36

Browser/OS: Chrome 90 on Windows

View result in a separate tab

Test name	Executions per second
addition + tostring	1853.5 Ops/sec
concat	1647.7 Ops/sec
concat + toString	1857.7 Ops/sec
addition	1718.5 Ops/sec

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

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark and explain what's being tested, the different approaches, their pros and cons, and other considerations.

**Benchmark Overview**

The benchmark measures the performance of JavaScript string concatenation operations using the `+` operator and the `.concat()` method. The test cases compare the execution times of four different scenarios:

1. Concatenating strings with `+`
2. Concatenating a string with the result of `helloworld.toString()`
3. Concatenating a string with `helloworld`
4. Concatenating two strings using the `.concat()` method

**Script Preparation Code and HTML Preparation Code**

The script preparation code is a JavaScript statement that retrieves an element with the id "helloworld" from the DOM:
```javascript
var helloworld = document.getElementById("helloworld");
```
The HTML preparation code creates an empty `<div>` element with the id "helloworld":
```html
<div id='helloworld'></div>
```
**Test Cases**

Each test case has a unique benchmark definition, which is a JavaScript statement that contains the concatenation operation(s). The benchmark definitions are:

1. `addition + tostring`: `for(i=0;i<100;i++){\r\n  console.log("test123" + helloworld.toString())\r\n}`
2. `concat`: `for(i=0;i<100;i++){\r\n  console.log("test123".concat(helloworld))\r\n}`
3. `concat + tostring`: `for(i=0;i<100;i++){\r\n  console.log("test123" + helloworld.toString())\r\n}`
4. `addition`: `for(i=0;i<100;i++){\r\n  console.log("test123" + helloworld)\r\n}`

**Library and Special JS Features**

In this benchmark, the `helloworld` variable is accessed using the `document.getElementById()` method, which relies on the DOM (Document Object Model) API. The `concat()` method is a built-in JavaScript method that concatenates two strings.

There are no special JS features or syntax used in this benchmark.

**Options Compared**

The four test cases compare different string concatenation approaches:

1. Using the `+` operator
2. Using the `.concat()` method with a string literal (e.g., `"test123"`).
3. Using the `.concat()` method with the result of `helloworld.toString()`.
4. Using the `+` operator without converting `helloworld` to a string.

**Pros and Cons**

Here's a brief summary of the pros and cons of each approach:

1. `+` operator:
	* Pros: simple, efficient, and widely supported.
	* Cons: can lead to unexpected results when concatenating non-string values (e.g., numbers or objects).
2. `.concat()` method with a string literal:
	* Pros: explicit, readable, and less prone to errors than using the `+` operator.
	* Cons: may be slower due to the additional method call.
3. `.concat()` method with `helloworld.toString()`: similar pros and cons as above, but with an added layer of complexity (converting `helloworld` to a string).
4. `+` operator without converting `helloworld`:
	* Pros: potentially faster than using the `.concat()` method.
	* Cons: may lead to unexpected results if `helloworld` is not a string.

**Other Considerations**

When writing JavaScript benchmarks, it's essential to consider factors such as:

* DOM interaction overhead (e.g., accessing elements, manipulating the DOM)
* String manipulation efficiency (e.g., using `concat()` or the `+` operator)
* Looping and iteration optimizations
* Browser and platform-specific differences

**Alternatives**

If you're interested in writing similar benchmarks or exploring different JavaScript performance topics, consider:

* Using a different programming language (e.g., Python, C++)
* Investigating other string manipulation methods (e.g., `string.prototype.repeat()`, template literals)
* Exploring benchmarking frameworks like Benchmark.js, Microbenchmark, or JSPerf

Related benchmarks:

test 123 helloworld (version: 0)

Comparing performance of: addition + tostring vs concat vs concat + toString vs addition

Created: 3 years ago by: Guest

Jump to the latest result

addition + tostring

concat

concat + toString

addition

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):