A detour to JavaScript

History of JavaScript:

Let’s go back to the time where JavaScript first started. Brendan Eich an engineer at Netscape created JavaScript in 1995 which was later released in 1996 with Netscape 2. JavaScript was originally going to be called LiveScript but it was renamed because of a cliché marketing policy. Several months later JavaScript was released in Internet Explorer 3 by Microsoft. After that, JavaScript went through some major editions. The last edition was published in June of 2015.

JavaScript has no concept of input or output. It is designed to run as a scripting language in a host environment and it is up to the host environment to provide mechanism for communicating with the outside world. The most common host environment is the browser but JavaScript interpreters can also be found in a huge list of other places, including Adobe Acrobat, Adobe Photoshop, server-side environment such as Node.js, NoSQL databased like the open source Apche CouchDB and many more.

Overview:

JavaScript is a multi-paradigm, dynamic language with types and operators, standard built-in objects, and methods. Some of the JavaScript types are:

· Number

· String

· Boolean

· Symbol

· Object

· Null

· Undefined

Strings:

Stings in JavaScript are sequences of Unicode characters. To fine the length of a string you can access its length property

You can find out a character from a specific position using charAt property, replace a word in a string and make all of them uppercase.