An owning iterator over the values of a `BTreeMap`.

The overflow attribute sets what to do when an element's content is too big to fit in its block formatting context. This feature is not widely implemented yet.

The rest parameter syntax allows a function to accept an indefinite number of arguments as an array, providing a way to represent variadic functions in JavaScript.

An object providing access to an open file on the filesystem.

Filesystem manipulation operations.

Compile-time constants, compile-time blocks, compile-time evaluable functions, and raw pointers.

A Rust binary or library.

Generally speaking, a function is a "subprogram" that can be called by code external (or internal, in the case of recursion) to the function. Like the program itself, a function is composed of a sequence of statements called the function body. Values can be passed to a function as parameters, and the function will return a value.

Link to or import external code.

The word-spacing attribute specifies spacing behavior between words.