What are the provisions of the JavaScript naming convention

Editor to share with you what the JavaScript naming conventions are, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

The JavaScript naming convention stipulates

Always use the same naming convention for all your code. For example:

Variable and function names are written in hump case

Global variables use uppercase (we don't do that, but it's quite common)

Constants (such as PI) use uppercase

Should we use hyphens, hump capitalization, or underscores in variable names?

This is a problem that programmers often discuss. The answer depends on who answered the question:

Hyphens in HTML and CSS:

The HTML5 attribute can start with data- (data-quantity, data-price).

CSS uses a hyphen (font-size) in property-names.

Hyphens can be mistaken as a subtraction operator. Hyphens are not allowed in JavaScript naming.

Underline:

Many programmers like to use underscores (date_of_birth), especially in SQL databases.

Underscores are often used in PHP references.

Pascal nomenclature (PascalCase):

C language programmers often use Pascal nomenclature.

Hump case (camelCase):

JavaScript itself, jQuery, and other JavaScript libraries use hump case.

Please do not start with the $symbol for JavaScript naming. This will cause JavaScript library name conflicts.

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