Learn Julia Step by Step from Scratch

Learn to define and call simple Julia functions with two parameters x and y, perform x + y, and understand that a function may or may not return a value.

Discover how to define a Julia function in one line as an alternative for small functions, using named parameters and adding two numbers x and y.

Discover how Julia implicitly returns the last expression in a function, making explicit returns optional, with semicolons affecting whether output is shown.

Explore automatic return in a function, showing how the last statement dictates the result, with examples of multiplying and computing two plus three equals five.

Learn to return multiple values from a function in Julia and unpack them into two variables in a single statement, as with 2 and 3 yielding 5 and 6.

Learn how operators in Julia can act as functions, performing addition, subtraction, and multiplication, with multiple arguments via comma separation.

Learn how functions act as first-class objects by assigning a function to a variable and invoking it through that variable, returning 5.

Explore how map in Julia treats functions as first-class objects by passing a function as an argument and applying it to values, producing transformed results.

Master optional arguments in Julia by seeing how a function can be called with one value or overridden with a second value, enabling reuse of the same value.

Learn how to use if else statements in Julia to handle conditions, including nested checks for negative, zero, and positive values, with print statements and syntax cautions.

Master the Julia ternary operator to write one-line conditionals instead of traditional if statements. See how it chooses between two blocks based on a condition, including less-than-zero examples.

Learn how to use Julia for loops to iterate over ranges and sequences, such as 1 to 10, and explore different formats for processing lists and numbers.

Learn how to use the while loop in Julia by initializing a counter, applying a condition such as x ≤ 5, and incrementing x to control iteration safely.

Continue exploring loops and conditional flow in Julia by defining variables, using if statements to test even numbers, and applying continue, for loops, and break to control iteration.

Explore compound statements in Julia and learn to write sequences and one-line expressions, including simple function definitions, to perform multiple operations in a single line.

Explore coroutine-style programming in Julia and functional programming by building a stateful function that yields the next Fibonacci number on each call, using a while loop for an infinite sequence.

Explore automating repetitive tasks in Julia by using for loops to break when values reach 200, ensuring efficient code.

Learn Julia's exception handling by using try and catch blocks to catch different exception types, print errors, and keep the program running without crashing.

Examine the type of exceptions in Julia, define and test different conditions to trigger exceptions, and explore handling strategies through examples.