Benchmark: Comparação entre createElement vs string template

HTML Preparation code:

<div id="testdiv">
  <div class="unique">test</div>
</div>

Script Preparation code:

var i, imax;
var div = document.getElementById('testdiv');

Tests:

createElement
var newDiv = document.createElement('div'); newDiv.classList.add('unique'); newDiv.innerText = 'test'; div.innerHTML = newDiv;
template string
var newDiv = `<div class="unique">test</div>`; div.innerHTML = newDiv;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
createElement
template string

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser/OS: Chrome 130 on Windows

View result in a separate tab

Test name	Executions per second
createElement	188241.5 Ops/sec
template string	309717.0 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 definition and test cases to understand what's being tested.

**Benchmark Definition**

The benchmark is comparing two approaches for creating HTML elements: `document.createElement` and string template literals (also known as template strings).

**Script Preparation Code**
```javascript
var i, imax;
var div = document.getElementById('testdiv');
```
This code snippet prepares the test environment by getting a reference to an HTML element with the id "testdiv" using the `document.getElementById` method.

**Html Preparation Code**
```html
<div id="testdiv">
  <div class="unique">test</div>
</div>
```
This is the HTML structure that will be used as input for the benchmark tests. It contains a single `<div>` element with a class of "unique" and text content "test".

**Individual Test Cases**

There are two test cases:

1. **createElement**
```javascript
var newDiv = document.createElement('div');
newDiv.classList.add('unique');
newDiv.innerText = 'test';
div.innerHTML = newDiv;
```
This test creates a new `<div>` element using `document.createElement`, adds the "unique" class to it, sets its text content to "test", and then appends the new element's innerHTML to the original `<div>` element.

2. **template string**
```javascript
var newDiv = `<div class="unique">test</div>`;
div.innerHTML = newDiv;
```
This test uses a template literal (string template) to create the HTML content of the new `<div>` element, which is then appended to the original `<div>` element using `div.innerHTML`.

**Library**

None of the tests explicitly use any external libraries. However, it's worth noting that some modern JavaScript engines and browsers may have additional features or optimizations that are not relevant to this specific benchmark.

**Special JS Features/Syntax**

The test cases do not specifically target any special JavaScript features or syntax. They focus on comparing two straightforward approaches for creating HTML elements.

**Pros and Cons of Different Approaches**

Here's a brief summary:

1. **createElement**:
	* Pros: Can be used to dynamically create elements without relying on string template literals.
	* Cons: May lead to performance overhead due to the need to traverse the DOM tree when appending new elements.
2. **template string**:
	* Pros: Offers a concise and readable way to build HTML content, which can improve code quality and maintainability.
	* Cons: May not be as efficient as `createElement` for large-scale templates or complex layouts.

**Other Alternatives**

If you're looking for alternative approaches to create HTML elements in JavaScript, consider the following:

1. **innerHTML**: Similar to `template string`, but requires setting the element's content using a string literal.
2. **outerHTML**: Sets an element's outer HTML content, which can be useful for certain use cases.
3. **DOM manipulation libraries** (e.g., jQuery): These libraries often provide optimized methods for manipulating the DOM tree, but may come with additional dependencies and performance overhead.

When choosing an approach, consider factors such as performance requirements, code readability, and maintainability. The benchmark provided by MeasureThat.net should help you understand the relative performance characteristics of each method in a controlled environment.

Related benchmarks:

Comparação entre createElement vs string template (version: 0)

Comparação entre createElement vs string template

Comparing performance of: createElement vs template string

Created: 7 years ago by: Guest

Jump to the latest result

createElement

template string

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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