Cargo Features

[dependencies]
include_js = { version = "0.1.2", default-features = false, features = ["template"] }
default = template

The template feature is set by default whenever include_js is added without default-features = false somewhere in the dependency tree.

template default = handlebars

Enables template of include_js_codegen

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

handlebars template

Enables handlebars ^3.5.5