Javascript

Scope Chain is process of looking for the variable at own local memory of the function. If do not find it in the local memory of that function then it…

The this keyword refers to an Object on which we call our function. This line explains the full functionality of this keyword. So instead of going theoretically we will understand…

Asynchronous Javascript Synchronous code runs sequentially. Means execution of code  happens one by one. Each task need to wait for its previous task to complete. But Asynchronous means code runs…