Flutter for Beginners

Conventions used

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

CodeInText: 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: "It evaluates and returns the value of expression2: expression1 ?? expression2."

A block of code is set as follows:

main() { var yeahDartIsGreat = "Obviously!"; var dartIsGreat = yeahDartIsGreat ?? "I don't know"; print(dartIsGreat); // prints Obviously!}

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

main() {  var someInt = 1;  print(reflect(someInt).type.reflectedType.toString()); // prints: int}

Any command-line ...