Node.js Tutorial - 2 - ECMAScript

welcome everyone to section one of the series where the focus is on understanding the definition of node.js before we try to understand what is a JavaScript runtime environment though let's try to understand a few other Concepts that lay the foundation kind of like video games where you defeat small bosses and use that

experience to defeat the big boss all right for our first concept or terminology we're going to understand what is ecmascript and for this we need to go back in time in 1993 the first web browser with a user interface called Mosaic was released in 1994 the lead developers of Mosaic founded a company called Netscape and

released a more polished browser called Netscape Navigator although it became increasingly popular it lacked the capability for dynamic Behavior web pages could only be static and there was no interactivity after a page was loaded to address this in 1995 Netscape created a new scripting language called JavaScript the name was purely for marketing

purpose as Java was the hot new language back then during the same time in 1995 Microsoft debuted their browser Internet Explorer this led to a browser war with Netscape Microsoft soon realized that JavaScript fundamentally changed the user experience of the web and wanted the same for Internet Explorer but there was no specification for them

to follow in order to match netscape's JavaScript in 1996 Microsoft reverse engineered the Navigator interpreter to create its own scripting language called jscript jscript filled the same use case as JavaScript but its implementation was different this unfortunately created a problem the differences made it difficult for developers to make their websites work well in both browsers