[const] keyword

Constants are block-scoped, much like variables declared using the let keyword. The value of a constant can’t be changed through reassignment (i.e. by using the assignment operator), and it can’t be redeclared (i.e. through a variable declaration). However, if a constant is an object or array its properties or items can be updated or removed.

Visit the following resources to learn more:

• JavaScript Constants - CodeGuage
• const keyword - MDN Docs
• JavaScript Variables
• How to declare variables in different ways in JavaScript?