Document Object Model (DOM)      DOM is an object model that comprise the structure of web page and content of that pag…

In javascript everything is an object.      < script >          let   obj1  = {};          obj1 . name  =  "…

Shadowing :  If we declare a variable in a certain scope with some name on its outer scope and if re-assign the value i…

Closures Closures are the function inside function or combination of functions enclosed with referencing to its lexical…

This keyword 'this' keyword refers to the owner object. - when we use this keyword alone it refers to the windo…

Introduction Object in JavaScript is a type of variable. Object represents a real world things[entities]. for eg. car i…

Lexical Scope In JavaScript     Lexical scope defines the scope of variables. So that is may be referenced from with…