Benchmark: Remove children - MeasureThat.net

HTML Preparation code:

<div id='foo'></div>

AخA
 
<div id='foo'></div>

Script Preparation code:

let parent = document.getElementById('foo');
	
for (let i = 0; i < 1000; i++) {
  let child = document.createElement('div');
  parent.appendChild(child);
}

 
let parent = document.getElementById('foo');    for (let i = 0; i < 1000; i++) {  let child = document.createElement('div');  parent.appendChild(child);}

Tests:

Loop

const parent = document.getElementById("foo")
while (parent.firstChild) {
    parent.firstChild.remove()
}

 
const parent = document.getElementById("foo")while (parent.firstChild) {    parent.firstChild.remove()}

innerHTML
const parent = document.getElementById("foo") parent.innerHTML = "";
const parent = document.getElementById("foo")
parent.innerHTML = "";
innerText
const parent = document.getElementById("foo") parent.innerText = "";
const parent = document.getElementById("foo")
parent.innerText = "";

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

Memory measurements supported only in Chrome.
For precise memory measurements Chrome must be launched with --enable-precise-memory-info flag.
More information: Monitoring JavaScript Memory

Test case name	Result
Loop
innerHTML
innerText

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.125 Safari/537.36

Browser/OS: Chrome 84 on Linux

View result in a separate tab

Test name	Executions per second
Loop	3759548.2 Ops/sec
innerHTML	2594207.2 Ops/sec
innerText	2562128.5 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 5 months ago):

Let's break down the provided benchmark and explain what's being tested.

Benchmark Overview

The provided benchmark is designed to measure the performance of JavaScript code on different browsers and platforms. The benchmark consists of three test cases:

"Remove children"
"Loop"
"innerHTML"
"innerText"

Each test case has a script preparation code, which sets up a DOM element with 1000 child elements, and an HTML preparation code, which creates the initial HTML structure.

Test Cases

Remove Children

This test case compares the performance of three different approaches to remove child elements from a parent node:

removeChild(): Removes a single child element.
removeAllChildren(): Removes all child elements.
No removal: Does nothing, effectively leaving the child elements intact.

The script preparation code creates a parent node with 1000 child nodes and then applies each of these three approaches to remove the children. The time taken to execute each approach is measured and compared across different browsers and platforms.

Pros and Cons

removeChild(): This approach is simple and efficient, but it requires calling removeChild() on each individual node.
removeAllChildren(): This approach removes all child nodes at once, which can be faster than calling removeChild() for each individual node. However, it may be less efficient if the parent node has many children.
No removal: This approach is the fastest, as it does not require any additional operations. However, it effectively leaves the child elements intact, which may not be desirable in all cases.

Loop

This test case compares the performance of three different approaches to remove child nodes from a parent node using a while loop:

removeChild(): Removes a single child element.
removeAllChildren(): Removes all child nodes at once.
No removal: Does nothing, effectively leaving the child elements intact.

The script preparation code creates a parent node with 1000 child nodes and then applies each of these three approaches using a while loop to remove the children. The time taken to execute each approach is measured and compared across different browsers and platforms.

Pros and Cons

removeChild(): This approach can be slower than removeAllChildren() due to the repeated calls to removeChild().
removeAllChildren(): This approach can be faster, as it removes all child nodes at once. However, it may not work correctly if the parent node has many children.
No removal: This approach is the fastest, but it does not remove any child elements.

###innerHTML

This test case compares the performance of three different approaches to clear the inner HTML of a parent node:

innerHTML = "": Sets the inner HTML of the parent node to an empty string.
innerText = "": Sets the text content of the parent node to an empty string.
No clearing: Does nothing, effectively leaving the inner HTML intact.

The script preparation code creates a parent node with 1000 child nodes and then applies each of these three approaches to clear the inner HTML. The time taken to execute each approach is measured and compared across different browsers and platforms.

Pros and Cons

innerHTML = "": This approach can be faster than innerText = "", as it only updates the inner HTML.
innerText = "": This approach may be slower, as it also updates the text content of the parent node.
No clearing: This approach is the fastest, but it does not clear the inner HTML.

###innerText

This test case compares the performance of two different approaches to clear the inner text content of a parent node:

innerText = "": Sets the text content of the parent node to an empty string.
No clearing: Does nothing, effectively leaving the inner text content intact.

The script preparation code creates a parent node with 1000 child nodes and then applies each of these two approaches to clear the inner text content. The time taken to execute each approach is measured and compared across different browsers and platforms.

Pros and Cons

innerText = "": This approach can be faster than no clearing, as it only updates the text content.
No clearing: This approach is the fastest, but it does not clear the inner text content.

Libraries and Special Features

None of the provided test cases use any libraries or special JavaScript features. The script preparation code only uses built-in DOM methods to create and manipulate the DOM elements.

Other Alternatives

There are several other alternatives for benchmarking JavaScript performance, including:

jsbench: A web-based platform for running JavaScript benchmarks.
Benchmark.js: A lightweight JavaScript benchmarking library.
V8 Benchmark: A set of benchmark tests for the V8 JavaScript engine.
Node.js benchmark: A set of benchmark tests for the Node.js runtime.

Each of these alternatives has its own strengths and weaknesses, and some may be more suitable than others depending on the specific use case.

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested.

**Benchmark Overview**

The provided benchmark is designed to measure the performance of JavaScript code on different browsers and platforms. The benchmark consists of three test cases:

1. "Remove children"
2. "Loop"
3. "innerHTML"
4. "innerText"

Each test case has a script preparation code, which sets up a DOM element with 1000 child elements, and an HTML preparation code, which creates the initial HTML structure.

**Test Cases**

### Remove Children

This test case compares the performance of three different approaches to remove child elements from a parent node:

* `removeChild()`: Removes a single child element.
* `removeAllChildren()`: Removes all child elements.
* No removal: Does nothing, effectively leaving the child elements intact.

**Pros and Cons**

* `removeChild()`: This approach is simple and efficient, but it requires calling `removeChild()` on each individual node.
* `removeAllChildren()`: This approach removes all child nodes at once, which can be faster than calling `removeChild()` for each individual node. However, it may be less efficient if the parent node has many children.
* No removal: This approach is the fastest, as it does not require any additional operations. However, it effectively leaves the child elements intact, which may not be desirable in all cases.

### Loop

This test case compares the performance of three different approaches to remove child nodes from a parent node using a `while` loop:

* `removeChild()`: Removes a single child element.
* `removeAllChildren()`: Removes all child nodes at once.
* No removal: Does nothing, effectively leaving the child elements intact.

The script preparation code creates a parent node with 1000 child nodes and then applies each of these three approaches using a `while` loop to remove the children. The time taken to execute each approach is measured and compared across different browsers and platforms.

**Pros and Cons**

* `removeChild()`: This approach can be slower than `removeAllChildren()` due to the repeated calls to `removeChild()`.
* `removeAllChildren()`: This approach can be faster, as it removes all child nodes at once. However, it may not work correctly if the parent node has many children.
* No removal: This approach is the fastest, but it does not remove any child elements.

###innerHTML

This test case compares the performance of three different approaches to clear the inner HTML of a parent node:

* `innerHTML = ""`: Sets the inner HTML of the parent node to an empty string.
* `innerText = ""`: Sets the text content of the parent node to an empty string.
* No clearing: Does nothing, effectively leaving the inner HTML intact.

**Pros and Cons**

* `innerHTML = ""`: This approach can be faster than `innerText = ""`, as it only updates the inner HTML.
* `innerText = ""`: This approach may be slower, as it also updates the text content of the parent node.
* No clearing: This approach is the fastest, but it does not clear the inner HTML.

###innerText

This test case compares the performance of two different approaches to clear the inner text content of a parent node:

* `innerText = ""`: Sets the text content of the parent node to an empty string.
* No clearing: Does nothing, effectively leaving the inner text content intact.

**Pros and Cons**

* `innerText = ""`: This approach can be faster than no clearing, as it only updates the text content.
* No clearing: This approach is the fastest, but it does not clear the inner text content.

**Libraries and Special Features**

None of the provided test cases use any libraries or special JavaScript features. The script preparation code only uses built-in DOM methods to create and manipulate the DOM elements.

**Other Alternatives**

There are several other alternatives for benchmarking JavaScript performance, including:

* jsbench: A web-based platform for running JavaScript benchmarks.
* Benchmark.js: A lightweight JavaScript benchmarking library.
* V8 Benchmark: A set of benchmark tests for the V8 JavaScript engine.
* Node.js benchmark: A set of benchmark tests for the Node.js runtime.

Each of these alternatives has its own strengths and weaknesses, and some may be more suitable than others depending on the specific use case.

Related benchmarks:

Remove children (version: 0)

Comparing performance of: Loop vs innerHTML vs innerText

Created: 4 years ago by: Guest

Jump to the latest result

Loop

innerHTML

innerText

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 5 months ago):

Remove Children

Loop