JavaScript Identifiers / Names

In JavaScript, identifiers serve as names for various elements such as variables, keywords, and functions.

These names must adhere to standard naming conventions found in many programming languages.

Specifically, a JavaScript identifier must commence with

• A Letter (either uppercase or lowercase),
• A dollar sign ($),
• Or an underscore (_).

Following this initial character, subsequent characters can consist of letters, digits, underscores, or dollar signs.