Principles of javascript variable naming and common variable naming methods

This article introduces the "javascript variable naming principles and common variable naming methods" related knowledge, in the actual case operation process, many people will encounter such a dilemma, and then let the editor lead you to learn how to deal with these situations! I hope you can read it carefully and be able to achieve something!

1. Strictly case-sensitive.

2. It can only contain letters, numbers and underscores, but not spaces and other punctuation marks.

3. You must start with letters or underscores, not numbers.

4. Keywords and reserved words cannot be used as variable names.

Try to avoid using meaningless names.

The common naming methods of variable names are Hungarian naming, hump naming and Pascal naming.

Hungarian nomenclature

Hungarian nomenclature is a kind of variable naming rule in computer programming, which can be subdivided into systematic Hungarian nomenclature and Hungarian application nomenclature.

Hump nomenclature

When the variable name and function name are unique identifiers formed by two or more words linked together, the use of "hump case" can increase the readability of variables and functions.

Pascal nomenclature

Pascal naming method (Pascal Case, Pascal naming method / Pascal naming method), a set of naming rules (conventions) for computer programming.

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