1. Introduction to JavaScript : JAVASCRIPT

Introduction to JavaScript

 What is JavaScript? 

• JavaScript is a customer-side prearranging language. 
• It is utilized to make website pages alive. 
• It is utilized to automatically perform activities inside the page. 
• At the point when JavaScript was made, it was at first called "LiveScript". 
• However, Java was an exceptionally well-known language around then, so it was concluded that situating a language as a "more youthful sibling" of Java would help. 

What JavaScript can do? 

• JavaScript can execute in the program as well as on the worker. 
• We will utilize JavaScript as a customer just as a worker-side language. 
• JavaScript has developed enormously as a language and is currently used to play out a wide assortment of assignments. 

What Can In-Browser JavaScript Do? 

Assuming JavaScripts are utilized in any site, it ought not to be given any low-level CPU consents like turning off the CPU, and so forth That is the reason JavaScript is made with amazingly safe authorizations that don't have any consent to get to low-even out CPU use. 

• JavaScript can add new HTML and change existing HTML from DOM. 
• It can even respond to any occasion (activities). 
• It can likewise deal with the AJAX demands (GET or POST solicitations) 
• JavaScript can get and set treats and utilize nearby capacity. 

What Can't In-Browser JavaScript Do? 

• JavaScript can't read or write to and from a PC hard plate without client consent. 
• The program doesn't permit the JavaScript of any site to gather the AJAX data of the other site since it produces the mistake of the equivalent beginning arrangement. 
• To sum up, JavaScript can just access the allowed assets yet can't get to your archives on PCs. 

What Makes JavaScript a Unique language? 

• The main thing that makes it an interesting language is, it has a total combination of HTML and CSS. They give it a great deal of additional help. 
• Likewise, it gives the utilization of basic APIs (Application Programming Interface). 
• It likewise upholds the significant present-day programs which are empowered naturally. If you turn off the component of JavaScript in the program, you can't get to any site. 

Versions of JavaScript 

• JavaScript is such a significant language that it requires generous updates to keep up with its various variants. The ECMA is a standard kept up with for any of the prearranging dialects that push for new updates. The ECMA was first dispatched in 1997.