Javascript-Why do common js plug-ins use the name of a hyphen instead of a hump?

For common bootstrap, swiper, slide, fullpage, and so on, why is the "-" hyphen used instead of the camper? After all, you can double-click the camper to select it, and select another character. For common bootstrap, swiper, slide, fullpage, and so on, why is the "-" hyphen used instead of the camper?
After all, you can double-click the camper to select it, and select another character.

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For common bootstrap, swiper, slide, fullpage, and so on, why is the "-" hyphen used instead of the camper?
After all, you can double-click the camper to select it, and select another character.

Front-end Code rarely uses the camper name method. The most common method is the hyphen. html and css code are the same. js uses the hyphen to unify the front-end code style.

You are talking about the class name and id name of css...

This general rule is consistent with the original language...

Css is always used-Connected, suchborder-color,margin-topAnd so on.

Html attributes are also used-Because html attributes are case-insensitive, using the hump will cause a lot of inconvenience, such ,

Js has always been using hump, suchgetAttribute,offsetHeight...
Js uses underscores, for example, defining the connection of constants.const GLOBAL_LOADDING = ''

However, many variables in js are underlined now...

Clearer semantics, clear at a glance

You can double-click to select an underscore.

Taking clarity and discerning at a glance as the primary objective

The selected style is not important.

Because the class name convention is to use-hyphens, you can look at the sass syntax, the default is to use.

The underline is clearer. At first, I also had a camper. Later, the company asked for the underline. Now I want to see the camper again. I feel like XX, especially I cannot know the meaning of the identifier immediately.

The underline is like an English word, which is easy to recognize and understand (the underline is regarded as a space, and the hump is connected and mixed)

In addition, you can double-click the underline to select it.