Book Image

Learn Bosque Programming

By : Sebastian Kaczmarek, Joel Ibaceta
Book Image

Learn Bosque Programming

By: Sebastian Kaczmarek, Joel Ibaceta

Overview of this book

Bosque is a new high-level programming language inspired by the impact of structured programming in the 1970s. It adopts the TypeScript syntax and ML semantics and is designed for writing code that is easy to reason about for humans and machines. With this book, you'll understand how Bosque supports high productivity and cloud-first development by removing sources of accidental complexity and introducing novel features. This short book covers all the language features that you need to know to work with Bosque programming. You'll learn about basic data types, variables, functions, operators, statements, and expressions in Bosque and become familiar with advanced features such as typed strings, bulk algebraic data operations, namespace declarations, and concept and entity declarations. This Bosque book provides a complete language reference for learning to program with Bosque and understanding the regularized programming paradigm. You'll also explore real-world examples that will help you to reinforce the knowledge you've acquired. Additionally, you'll discover more advanced topics such as the Bosque project structure and contributing to the project. By the end of this book, you'll have learned how to configure the Bosque environment and build better and reliable software with this exciting new open-source language.
Table of Contents (22 chapters)
1
Section 1: Introduction
5
Section 2: The Bosque Language Overview
10
Section 3: Practicing Bosque
15
Section 4: Exploring Advanced Features

Getting familiar with Map and DynamicMap

Similar to lists, maps are one of the most popular data structures that are broadly implemented in various programming languages. A map is a collection of key-value pairs with the characteristic that the key must be unique while the values can repeat inside of a map.

In this section, we will describe two data types in Bosque – Map and DynamicMap. The difference between them is that the former – similar to the List concept – creates an immutable Map instance, which means that once it has been instantiated with some values, you cannot change it. The latter allows you to modify the map once it's been created. Both Map and DynamicMap provide the Expandoable concept, which means that the spread operator can be used on them.

First thing's first, let's see how a Map can be instantiated. The following example shows how to create a Map instance in Bosque:

 let map = Map<String, Int>@{
   ...