Nim · Introductory

Lesson 1 · On the house

Hello, var, let, and const

Compile and run with nim r, print with echo, and choose var, let, or const.

Lesson 2

Types and conversions

int, float, bool, char, string, type inference, explicit conversion, and integer division.

Lesson 3

if, case, and when

Branching expressions, case with ranges and sets of values, and compile-time when.

Lesson 4

Loops and ranges

for with .. and ..<, countdown, while, break, continue, and loop labels.

Lesson 5

Procedures

proc syntax, result, default and named arguments, var parameters, and UFCS calls.

Lesson 6

Arrays and sequences

Fixed arrays, growable seqs, @[] literals, add, slicing, and openArray parameters.

Lesson 7

Strings and formatting

Concatenation with &, $ to stringify, strutils helpers, and strformat fmt/&.

Lesson 8

Tuples and objects

Named and anonymous tuples, object types, construction, and value semantics.

Lesson 9

Enums and sets

Enumerations, ord and $, iterating enums, and bitset-backed set types.

Lesson 10

Exceptions and defer

raise, try/except/finally, custom exception types, defer, and Defects vs CatchableErrors.