Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "We can access the now() function from the Utc module to print out the current date and time."

A block of code is set as follows:

fn main() {
    println!("Hello, time now is {:?}", chrono::Utc::now());
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

fn main() {
    println!("Hello, time now is {:?}", chrono::Utc::now());
}

Any command-line input or output is written as follows:

rustup toolchain install nightly

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "You will see Hello, world! printed to your console."

Tips or important notes

Appear like this.