Home >Web Front-end >JS Tutorial >Is v$name a legal variable name in js?

Is v$name a legal variable name in js?

下次还敢
下次还敢Original
2024-05-07 22:15:22660browse

No, v$name is not a legal variable name in JavaScript because: 1. It starts with a dollar sign ($); 2. Subsequent characters contain the special sign ($).

Is v$name a legal variable name in js?

Is v$name a legal variable name in JavaScript?

No, v$name is not a legal variable name in JavaScript.

JavaScript variable name rules:

  • Must start with a letter, underscore, or dollar sign ($).
  • Following characters can be letters, underscores, dollar signs, or numbers.
  • Reserved words (such as var, const, function) cannot be used.
  • cannot contain spaces or special symbols (such as !, @, #).

v$name Illegal explanation:

  • begins with a dollar sign ($).
  • Following characters include the special symbol ($).

Therefore, v$name does not comply with the rules for JavaScript variable names and is therefore not a legal variable name.

The above is the detailed content of Is v$name a legal variable name in js?. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn