Benchmark: Is element in visible dom

Is element in visible dom (version: 0)

Is element in visible dom

Comparing performance of: body.contains(); direct; notIns vs body.contains(); nested; notIns vs body.contains(); direct; ins vs body.contains(); nested; ins vs own function; direct; notIns vs own function; nested; notIns vs own function; direct; ins vs own function; nested; ins

Created: 7 years ago by: Guest

Jump to the latest result

Script Preparation code:

var notIns = document.createElement("div");
var notInsNested = document.createElement("div");
notIns.appendChild(notInsNested);


var ins = document.createElement("div");
var insNested = document.createElement("div");
ins.appendChild(insNested);

var body = document.body;
body.appendChild(ins);


var test = function(element) {
  var parentElement = element.parentElement;
  if(parentElement === null) {
   return false; 
  } else if(parentElement === body) {
    return true;
  }
  return test(parentElement);
};

Tests:

body.contains(); direct; notIns
body.contains(notIns);
body.contains(); nested; notIns
body.contains(notInsNested);
body.contains(); direct; ins
body.contains(ins);
body.contains(); nested; ins
body.contains(insNested);
own function; direct; notIns
test(notIns);
own function; nested; notIns
test(notInsNested);
own function; direct; ins
test(ins);
own function; nested; ins
test(insNested);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
body.contains(); direct; notIns
body.contains(); nested; notIns
body.contains(); direct; ins
body.contains(); nested; ins
own function; direct; notIns
own function; nested; notIns
own function; direct; ins
own function; nested; ins

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):

LLMs can make mistakes. Check important info.

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

**Benchmark Purpose**

The primary goal of this benchmark is to measure how fast JavaScript can perform two types of DOM (Document Object Model) searches:

1. **Direct search**: Checking if an element with a specific ID or class exists directly within the body element.
2. **Nested search**: Searching for an element within another element.

**Methods Compared**

Two methods are being compared:

1. **Direct method**: Using the `body.contains()` method to check if an element exists directly within the body element.
2. **Own function method**: Defining a custom function, `test()`, to recursively traverse the DOM tree until it finds the target element.

**Pros and Cons of Each Method**

1. **Direct method**:
	* Pros:
		+ Faster execution time since it only needs to check if the element exists directly within the body.
		+ Less memory allocation is required, as it doesn't need to create a separate object for each iteration.
	* Cons:
		+ May be slower than the own function method for deeply nested elements, as it relies on the browser's DOM traversal algorithms.
2. **Own function method**:
	* Pros:
		+ Can handle deeply nested elements more efficiently by traversing the DOM tree recursively.
		+ Allows for customization of the search logic and can be optimized further with caching or memoization.
	* Cons:
		+ Requires more memory allocation, as a new object is created for each iteration.
		+ Execution time may vary depending on the complexity of the DOM tree.

**Other Considerations**

When writing custom benchmarking code like this one, keep in mind:

* **Browser quirks and differences**: Each browser has its own way of handling DOM searches. This benchmark might not be representative of all browsers or versions.
* **Context-dependent results**: The execution time may vary depending on the context, such as network latency, system resources, or other concurrent tasks running on the same thread.

**Alternative Approaches**

Other alternatives to test these methods include:

1. **Native DOM APIs**: Instead of using a custom function, you could directly use the `contains()` method or other native DOM API functions like `querySelector()` or `getElementById()`.
2. **Benchmarking frameworks**: Utilize specialized benchmarking libraries or tools, such as Benchmark.js or Microbenchmark, which provide more advanced features and flexibility for creating complex benchmarks.
3. **Async testing**: Consider using async testing libraries to simulate real-world scenarios where DOM searches are performed concurrently.

Please note that these alternatives might not necessarily change the fundamental approach of comparing direct vs. own function methods but can offer more sophisticated ways to execute and analyze the benchmarking results.

Latest run results:

Run details: (Test run date: 7 years ago)

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

Browser/OS: Chrome 56 on Windows 7

View result in a separate tab

Test name	Executions per second
body.contains(); direct; notIns	2600025.8 Ops/sec
body.contains(); nested; notIns	2634836.0 Ops/sec
body.contains(); direct; ins	2579353.0 Ops/sec
body.contains(); nested; ins	2574464.2 Ops/sec
own function; direct; notIns	3618504.0 Ops/sec
own function; nested; notIns	1767283.4 Ops/sec
own function; direct; ins	2546186.5 Ops/sec
own function; nested; ins	1499364.6 Ops/sec

Related benchmarks:

Is element in visible dom (version: 0)

Is element in visible dom

Comparing performance of: body.contains(); direct; notIns vs body.contains(); nested; notIns vs body.contains(); direct; ins vs body.contains(); nested; ins vs own function; direct; notIns vs own function; nested; notIns vs own function; direct; ins vs own function; nested; ins

Created: 7 years ago by: Guest

Jump to the latest result

body.contains(); direct; notIns

body.contains(); nested; notIns

body.contains(); direct; ins

body.contains(); nested; ins

own function; direct; notIns

own function; nested; notIns

own function; direct; ins

own function; nested; ins

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):