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This article mainly explains "A brief introduction to Pyret programming language". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "A brief introduction to Pyret programming language".

Pyret is a JavaScript-based scripting language designed to be an excellent choice for programming education while exploring the integration of scripting languages and functional programming. At present, Pyret is in the active design and development stage, and developers are free to use it or modify it.

Introduction to Pyret grammar

Pyret has Python-inspired function, list, and operator syntax, and its iterative structure (Iteration constructs) is designed to invoke iterative structures in other languages.

Fun to-celsius (f): (F-32) * (5 / 9) end for each (str from [list: "Ahoy", "world!"]): print (str) end

Pyret supports concise, expressive, recursive data declarations, optional type annotations, and incremental additions to meet a variety of teaching styles and course needs.

Data BinTree: | leaf | node (value, left:: BinTree, right:: BinTree) end

Pyret testing is a natural part of the programming process. A function can end in a where: clause, which provides a unit test for the function, and these Assertions are checked dynamically.

Fun sum (l): cases (List) l: | empty = > 0 | link (first, rest) = > first + sum (rest) endwhere: sum ([list:]) is 0 sum ([list: 1,2,3]) is 6end

When it comes to indentation, the Pyret team believes that indentation is critical to the readability of the code, but they don't want to determine its meaning by the spaces in the program. Instead, the meaning of the program should determine its indentation structure. Indentation is just another context-sensitive rule.

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