Page sizes

If you want to get the total Height and Width of the page content in JavaScript, you can use this code:
// gets the total height of the page content
var page_height = document.body.offsetHeight ? document.body.offsetHeight : document.height;

// gets the total width of the page content
var page_width = document.body.offsetWidth ? document.body.offsetWidth : document.width;

// Test
alert('Height: '+ page_height +' px \nWidth: '+ page_width +' px');
- Example:
Click:

Window sizes

This function, getWindowSize(), can be used to get the Height and Width of the browser window, in pixels:
// Returns an Array with the 'height' and 'width' of the browser window, in pixels
function getWindowSize() {
 // from:  http://coursesweb.net/javascript/
  var win_size = new Array;
  if (self.innerHeight) {
    win_size['height'] = self.innerHeight;
    win_size['width'] = self.innerWidth;
  } else if (document.documentElement && document.documentElement.clientHeight) {
    win_size['height'] = document.documentElement.clientHeight;
    win_size['width'] = document.documentElement.Width;
  } else if (document.body) {
    win_size['height'] = document.body.clientHeight;
    win_size['width'] = document.body.clientWidth;
  }
  return win_size;
}

// Test: gets the array with the window sizes
var win_dim = getWindowSize();
alert('Height: '+ win_dim['height'] +' px \nWidth: '+ win_dim['width'] +' px');
- Example:
Click:

Daily Test with Code Example

HTML
CSS
JavaScript
PHP-MySQL
Which tag renders as emphasized text, displaying the text oblique?
<strong> <pre> <em>
<p>Web development courses: <em>CoursesWeb.net</em></p>
Which CSS property defines the space between the element border and its content?
margin padding position
h3 {
  padding: 2px 0.2em;
}
Click on the method which returns the first element that matches a specified group of selectors.
getElementsByName() querySelector() querySelectorAll()
// gets first Div with class="cls", and shows its content
var elm = document.querySelector("div.cls");
alert(elm.innerHTML);
Indicate the PHP variable that contains data from a form sent with method="post".
$_SESSION $_GET $_POST
if(isset($_POST["field"])) {
  echo $_POST["field"];
}
Get the Height and Width of web Page and browser Window

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