- The history object is part of the window object, and contains the URLs visited by the user (within a browser window).
It contains useful methods and properties that let you move back and forth through the user's history, and manipulate the contents of the history stack.
- Syntax:

window.history.property_name
window.history.methodName()

• The history object has two properties: length and state.
window.history.length - returns the number of URLs in the history list.
window.history.state - returns the object added in history with pushState() or replaceState().


Methods of the history object

Daily Test with Code Example

HTML
CSS
JavaScript
PHP-MySQL
Which HTML element can be used to embed a SWF flash content?
<object> <div> <script>
<object type="application/x-shockwave-flash" data="file.swf" width="500" height="250">
 <param name="src" value="file.swf" />
 Your browser not support SWF.
</object>
Which CSS pseudo-class adds a style to an input form field that has keyboard input focus?
:active :focus :hover
input:focus {
  background-color: #88fe88;
}
Click on the instruction which converts a JSON string into a JavaScript object.
JSON.stringify(javascript_object) object.toString() JSON.parse(json_string)
var jsnstr = '{"url": "http://coursesweb.net/", "title": "Web Development Courses"}';
var obj = JSON.parse(jsnstr);
alert(obj.url);
Indicate the PHP function which can be used to create or write a file on server.
fopen() file_put_contents() file_get_contents()
if (file_put_contents("file.txt", "content")) echo "The file was created";
else echo "The file can not be created";
The history object

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