A JavaScript for loop executes a block of statements until a specified condition is true.

An Array is used to store a number of values (called as elements) in order with a single variable.

The sort() method is used to sort the elements of an array.

The substr() method returns the characters in a string starting at a specified position and continuing for a specified number of characters.

The parseInt is used to get a numeric value from a string. parseInt is a top-level function and is not associated with any object.

There are 3 built-in Javascript functions which you need to use to get the different parts of the URL.

A script is an executable list of commands like macro or batch file created by a scripting language.

The abs() method of math object is used to get the absolute value of a number.

JavaScript Cookies are a great way to save a user's preferences in his / her browser.

When a browser opens a web page, the browser reads the cookies (provided it has already stored it) that has stored in your machine.