Logic is the analytical action performed by a computer, which often requires the computer to decide if a specific condition is true or false.
An expression is any piece of code that expresses a value. Expressions are commonly classified into two types and five categories.
map() creates a new array that contains the result of invoking map()’s function argument on each item of the calling array.
Lexical scope is the definition area of an expression. Therefore, an item’s lexical scope is the place in which the item got created.
Framework and libraries are pre-written codes. A framework is an app’s primary support system. A library is an app’s add-on feature.
An impure function is a function that contains one or more side effects. A pure function is a function without any side effects.
Side effect occurs in a program whenever you use an external code in your function, which impacts the function’s ability to perform its task.
Recursion is a method by which a problem gets solved through iteration. This article will use an example to illustrate recursive functions.
The difference between document, data, and code is that a document holds data. Data is a page’s content. And code is a computer’s language.