Scope - jellyfish-tom/TIL GitHub Wiki

[SOURCES]

http://javascriptissexy.com/understanding-es2015-in-depth-part-1-block-scope-with-let-and-const/

The term scope describes an area in which variables and functions, or identifiers, can be accessed.

JS have 3 kinds of scopes:

• global
• functional
• block

Conditional expressions, such as if, for, and while statements, all use blocks to execute statements based on certain conditions.