JS Basic II : Data Type,With Visual Studio Code

Javascript
is a programming language used in website development to make it more dynamic and interactive.

Data Type
Classification of data based on the type of data. Among them are Character, String, Array, Numbers.
- String Data Type
string is generally considered a data type and is often implemented as an array data structure of bytes (or words) that stores a sequence of elements, typically characters, using some character encoding.
- Integer Data type
a data type that represents some range of mathematical integers. Integral data types may be of different sizes and may or may not be allowed to contain negative values.
- Boolean Data Type
is a data type that has one of two possible values (usually denoted true and false) which is intended to represent the two truth values of logic and Boolean algebra.
- Array Data Type
An array is a type of object used for storing multiple values in singlevariable. Each value (also called an element) in an array has a numeric position, known as its index, and it may contain data of any data type-numbers, strings, booleans, functions, objects, and even other arrays.
• Index
An index maps the array value to a stored object. There are three ways in which the elements of an array can be indexed: 0 (zero-based indexing) The first element of the array is indexed by subscript of 0.