Smalltalk-Fundamentals

Hello World in Smalltalk

Every programming journey starts with Hello World. Let’s write our first Smalltalk program and experience the language that defined object-oriented programming.

The Code

Create a file named …

Variables and Types in Smalltalk

In Smalltalk, every value is an object — integers, floats, booleans, even nil and true. There are no primitive types, no special cases. This purity makes Smalltalk’s type system remarkably …

Operators in Smalltalk

In most languages, operators are baked into the grammar: + is a special symbol the parser knows about, with its own precedence table. Smalltalk takes a radically different view. There are no operators …

Control Flow in Smalltalk

Most languages bake control flow into their grammar: if, while, and for are keywords the compiler treats specially. Smalltalk does something radical and beautiful instead - there are no control-flow …

Functions in Smalltalk

Most languages have standalone functions you call by name. Smalltalk does not. In a pure object-oriented, message-passing language, the closest thing to a “function” comes in two flavors: …