Benchmark: java test - MeasureThat.net

HTML Preparation code:

<style>
    body {
      margin: 0;
      background-color: #f1f1f1;
      font-family: Arial, Helvetica, sans-serif;
    }
    
    #navbar {
      background-color: #333;
      position: fixed;
      top: 0;
      width: 100%;
      display: block;
      transition: top 0.3s;
    }
    
    #navbar a {
      float: left;
      display: block;
      color: #f2f2f2;
      text-align: center;
      padding: 15px;
      text-decoration: none;
      font-size: 17px;
    }
    
    #navbar a:hover {
      background-color: #ddd;
      color: black;
    }
    .hide-menu{
    	transform: translateY(110%)!important;
    }
    .show-menu{
    	transform: translateY(0%)!important;
    }
</style>
</head>

<body>

    <div id="navbar">
        <a href="#home">Home</a>
        <a href="#news">News</a>
        <a href="#contact">Contact</a>
    </div>

    <div style="padding:15px 15px 2500px;font-size:30px;margin-top:30px;">
        <p><b>This example demonstrates how to hide a navbar when the user starts to scroll the page.</b></p>
        <p>Scroll down this frame to see the effect!</p>
        <p>Scroll up to show the navbar.</p>
        <p>Lorem ipsum dolor dummy text sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
        <p>Lorem ipsum dolor dummy text sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    </div>

​x
 
<style>
    body {
      margin: 0;
      background-color: #f1f1f1;
      font-family: Arial, Helvetica, sans-serif;
    }
    
    #navbar {
      background-color: #333;
      position: fixed;
      top: 0;
      width: 100%;
      display: block;
      transition: top 0.3s;
    }
    
    #navbar a {
      float: left;
      display: block;
      color: #f2f2f2;
      text-align: center;
      padding: 15px;
      text-decoration: none;
      font-size: 17px;
    }
    
    #navbar a:hover {
      background-color: #ddd;
      color: black;
    }
    .hide-menu{
        transform: translateY(110%)!important;
    }
    .show-menu{
        transform: translateY(0%)!important;
    }
</style>
</head>
​
<body>
​
    <div id="navbar">
        <a href="#home">Home</a>
        <a href="#news">News</a>
        <a href="#contact">Contact</a>
    </div>
​
    <div style="padding:15px 15px 2500px;font-size:30px;margin-top:30px;">
        <p><b>This example demonstrates how to hide a navbar when the user starts to scroll the page.</b></p>
        <p>Scroll down this frame to see the effect!</p>
        <p>Scroll up to show the navbar.</p>
        <p>Lorem ipsum dolor dummy text sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
        <p>Lorem ipsum dolor dummy text sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    </div>

Tests:

1

var prevScrollpos = window.pageYOffset;
window.onscroll = function() {
  var currentScrollPos = window.pageYOffset;
  if (prevScrollpos > currentScrollPos) {
    document.getElementById("navbar").style.top = "0";
  } else {
    document.getElementById("navbar").style.top = "-50px";
  }
  prevScrollpos = currentScrollPos;
}

 
var prevScrollpos = window.pageYOffset;window.onscroll = function() {  var currentScrollPos = window.pageYOffset;  if (prevScrollpos > currentScrollPos) {    document.getElementById("navbar").style.top = "0";  } else {    document.getElementById("navbar").style.top = "-50px";  }  prevScrollpos = currentScrollPos;}

2

var prevScrollpos = window.pageYOffset;
var navbar = document.getElementById("footer-menu");
var delta = 0;

var didScroll;
// on scroll, let the interval function know the user has scrolled
window.onscroll = function() {
  didScroll = true;
}
// run hasScrolled() and reset didScroll status
setInterval(function() {
  if (didScroll) {
    hasScrolled();
    didScroll = false;
  }
}, 500);

function hasScrolled() {
	var last_direction = delta;
  var currentScrollPos = window.pageYOffset;
  delta = prevScrollpos - currentScrollPos;
  console.log(delta);
  


  if (Math.sign(last_direction) != Math.sign(delta))
  {
	  if (delta > 0) {
		navbar.classList.add("show-menu");
		navbar.classList.remove("hide-menu");
		console.log('up');
	  }	
	  
	  else if (delta < 0) {
		navbar.classList.remove("show-menu");
		navbar.classList.add("hide-menu");	
		console.log('down');		
	  }
  }
  prevScrollpos = currentScrollPos;
}

 
var prevScrollpos = window.pageYOffset;var navbar = document.getElementById("footer-menu");var delta = 0;​var didScroll;// on scroll, let the interval function know the user has scrolledwindow.onscroll = function() {  didScroll = true;}// run hasScrolled() and reset didScroll statussetInterval(function() {  if (didScroll) {    hasScrolled();    didScroll = false;  }}, 500);​function hasScrolled() {    var last_direction = delta;  var currentScrollPos = window.pageYOffset;  delta = prevScrollpos - currentScrollPos;  console.log(delta);  ​​  if (Math.sign(last_direction) != Math.sign(delta))  {      if (delta > 0) {        navbar.classList.add("show-menu");        navbar.classList.remove("hide-menu");        console.log('up');      }             else if (delta < 0) {        navbar.classList.remove("show-menu");        navbar.classList.add("hide-menu");          console.log('down');              }  }  prevScrollpos = currentScrollPos;}

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
1
2

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/92.0.4515.131 Safari/537.36

Browser/OS: Chrome 92 on Windows

View result in a separate tab

Test name	Executions per second
1	288093.4 Ops/sec
2	111225.4 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):

Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net.

Benchmark Definition Json

The provided JSON represents a benchmark definition for a test case that measures the performance of hiding and showing a navbar when the user scrolls down or up a web page. The script preparation code sets up an HTML structure with a navbar and some text content, while the Html Preparation Code defines the CSS styles for the navbar.

Individual Test Cases

There are two individual test cases:

Test Case 1: This test case measures the performance of hiding and showing the navbar when the user scrolls down. The script uses the window.pageYOffset property to track the scroll position and updates the navbar's top CSS style property accordingly.
Test Case 2: This test case measures the performance of detecting when the user has scrolled past a certain point on the page (not the top or bottom) and hiding/showing the navbar. The script uses an interval function to check for changes in scroll direction and updates the navbar's classes (show-menu and hide-menu) accordingly.

Library and Syntax

Both test cases use JavaScript, but Test Case 2 introduces a custom function called hasScrolled(). This function is not part of any widely used library, so it appears to be a custom implementation for detecting changes in scroll direction.

Comparison Options

The two test cases compare the performance of:

Test Case 1: Hiding and showing the navbar based on the current scroll position.
Test Case 2: Detecting when the user has scrolled past a certain point on the page and hiding/showing the navbar.

Pros and Cons

Test Case 1:

Pros: Simple, straightforward approach to hiding and showing the navbar.
Cons: May be sensitive to small changes in scroll position, which could lead to false positives or negatives.

Test Case 2:

Pros: Can detect more nuanced changes in scroll direction, potentially leading to more accurate results.
Cons: Introduces additional complexity with the custom hasScrolled() function and interval loop.

Other Considerations

The benchmark definition focuses on the performance of hiding and showing the navbar when scrolling down. It's not clear if this is representative of the typical use case for a navbar in web applications.
The test cases do not account for other factors that might affect the performance, such as browser cache, network latency, or device hardware capabilities.

Overall, these two test cases demonstrate different approaches to measuring the performance of hiding and showing a navbar when scrolling. While Test Case 1 is simple and straightforward, Test Case 2 introduces additional complexity but potentially more accurate results.

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net.

**Benchmark Definition Json**

The provided JSON represents a benchmark definition for a test case that measures the performance of hiding and showing a navbar when the user scrolls down or up a web page. The script preparation code sets up an HTML structure with a navbar and some text content, while the `Html Preparation Code` defines the CSS styles for the navbar.

**Individual Test Cases**

There are two individual test cases:

1. **Test Case 1**: This test case measures the performance of hiding and showing the navbar when the user scrolls down. The script uses the `window.pageYOffset` property to track the scroll position and updates the navbar's `top` CSS style property accordingly.
2. **Test Case 2**: This test case measures the performance of detecting when the user has scrolled past a certain point on the page (not the top or bottom) and hiding/showing the navbar. The script uses an interval function to check for changes in scroll direction and updates the navbar's classes (`show-menu` and `hide-menu`) accordingly.

**Library and Syntax**

Both test cases use JavaScript, but Test Case 2 introduces a custom function called `hasScrolled()`. This function is not part of any widely used library, so it appears to be a custom implementation for detecting changes in scroll direction.

**Comparison Options**

The two test cases compare the performance of:

1. **Test Case 1**: Hiding and showing the navbar based on the current scroll position.
2. **Test Case 2**: Detecting when the user has scrolled past a certain point on the page and hiding/showing the navbar.

**Pros and Cons**

**Test Case 1**:

* Pros: Simple, straightforward approach to hiding and showing the navbar.
* Cons: May be sensitive to small changes in scroll position, which could lead to false positives or negatives.

**Test Case 2**:

* Pros: Can detect more nuanced changes in scroll direction, potentially leading to more accurate results.
* Cons: Introduces additional complexity with the custom `hasScrolled()` function and interval loop.

**Other Considerations**

* The benchmark definition focuses on the performance of hiding and showing the navbar when scrolling down. It's not clear if this is representative of the typical use case for a navbar in web applications.
* The test cases do not account for other factors that might affect the performance, such as browser cache, network latency, or device hardware capabilities.

Related benchmarks:

java test (version: 0)

Comparing performance of: 1 vs 2

Created: 3 years ago by: Guest

Jump to the latest result

1

2

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):