Hello Julia: Learn the New Julia Programming Language

Discover how to declare and use variables in Julia, including numbers, strings, and unicode-based identifiers via backslash input, and learn about the ANS variable and other naming conventions.

Explore arrays in Julia, using 1-based indexing to access and modify elements, build 1d and 2d arrays, perform element-wise addition and multiplication, and select rows or columns with colon notation.

Explore how Julia functions work: define with the function keyword or shorthand, pass parameters, return values, and treat functions as values, using examples like sqrt(25) and sort.

Explore returning values from functions with the return keyword, including conditional returns in a daily interest calculator; use anonymous functions, map, and keyword arguments with defaults in Julia.

Define functions with a variable number of arguments using ellipses and explore function signatures; apply map to square inputs; build a planet weight calculator and a credit card interest calculator.

Discover Julia's dynamic type system using typeof to inspect values and trace subtypes through the hierarchy. Declare custom types with the type keyword; define a person with ASCII string fields.

Explore how loops work in Julia by iterating through arrays and dictionaries with for loops, and control flow with while loops and conditional logic.

Explore list comprehensions in Julia by transforming and filtering arrays with for-like syntax, including squaring numbers, applying conditions, and using filters for even elements, paralleling map usage.

Explore Julia metaprogramming by examining expressions and symbols, parsing strings into expressions, and constructing symbol-based computations to understand how Julia compiles and executes code.

Learn how to use constants and typing to improve Julia performance, especially for global variables. Explore time macro timing and the impact of initial compilation versus subsequent runs.

Demonstrate exception handling and robust error management in Julia by using try-catch, domain errors, and custom messages, while validating user input and logging failures to prevent crashes.

Explore advanced exception handling in Julia by using inline try catch blocks, handling errors and warnings, and applying finally to ensure files are closed and cleanup after failures.