Project Setup
Part of the Fundamentals section of Coddy's Lua journey — lesson 77 of 90.
Challenge
EasyOver the next few lessons, you'll build a simple potion shop system
Create the foundation for a potion shop inventory system by setting up the main data structure. Create an empty table named inventory that will serve as the container for storing all the shop's magical potions.
After creating the empty table, print the length of the inventory table using the length operator # to verify that it starts empty. This will confirm that your potion shop is ready to be stocked with magical items in the upcoming lessons.
Try it yourself
-- TODO: Write your code here
-- Print the length of the inventory table
print(#inventory)All lessons in Fundamentals
4Operators 2 Relational & Logic
Equality OperatorsRelational OperatorsThe 'and' OperatorThe 'or' OperatorThe 'not' OperatorShort-Circuit EvaluationTruthy and Falsy ValuesRecap - Simple Logic7Basic Conditional Logic
The if-then StatementThe if-then-else StatementThe elseif StatementRecap - Treasure Chest10Tables Part 1: List-Style
What is a Table?Creating a TableAccessing Elements by IndexModifying Elements by IndexThe Length Operator '#'table.insert()table.remove()Recap - Manage Party Members13Project: Simple Potion Shop
Project SetupAdding a Potion
Displaying the InventoryCalculating Total Stock ValueFinding a Specific PotionSelling a Potion2Variables and Data Types
What is a Variable?NumbersStringsBooleansThe Value 'nil'The type() FunctionNaming ConventionsRecap - Character Profile5Basic Output
Printing LiteralsPrinting VariablesPrinting Multiple ValuesCombining Strings & VariablesThe tostring() FunctionInputCastRecap - Status ReportRecap - Till 1208String Manipulation Basics
string.len()string.upper & string.lowerstring.sub()string.rep()string.find()Recap - Format Username3Operators 1 Arithmetic & Conc
Arithmetic OperatorsModulo OperatorExponentiation OperatorString ConcatenationOperator PrecedenceRecap - Simple Calculations6Project: Character Stats Disp
Welcome MessageDeclare Character StatsDisplay Basic StatsAdd a Boolean FlagFinal Summary9Functions Basics
Declaring a FunctionCalling a FunctionFunctions with ParametersFunctions with Multiple ParamsThe 'return' StatementRecap - Area Calculator