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This is one of the most common questions in Javascript interviews. In general, the “this” keyword refers to an object depending on the situation and its uses.

To Simply say, Closure is a feature of a function that allows it to remember all the variables in its lexical scope even after the execution of the function

Callback function is that function where the function pass as a argument in another function

To quick ans Javascript Hoisting moves the Variable and function declaration to the top. Lets drive into deep

How to fix Laravel Storage Permission in Ubuntu/Linux