Function to Add a Task
Part of the Introduction To Luau section of Coddy's Lua journey. Lesson 46 of 73.
Challenge
EasyYour editor already contains the Task type and the tasks array from the previous lesson.
Create a function named addTask that takes two parameters:
listof type{Task}titleof typestring
The function should:
- build a new
Taskwhoseidis#list + 1, whosetitleis the given title, and whosedoneflag isfalse - insert it into
listwithtable.insert - return the new task (return type
Task)
Then call addTask(tasks, "Review the code"), store the result in a variable named added, and print, each on its own line:
- the number of tasks now in
tasks added.idadded.titleadded.done
Try it yourself
-- The shape every task in the manager must follow
type Task = {
id: number,
title: string,
done: boolean,
}
-- The task list: a typed array of Task shapes
local tasks: {Task} = {
{id = 1, title = "Learn Luau types", done = false},
{id = 2, title = "Build a task manager", done = false},
{id = 3, title = "Write tests", done = true},
}
-- Inspect the first task
print(tasks[1].id)
print(tasks[1].title)
print(tasks[1].done)
print(#tasks)
All lessons in Introduction To Luau
1Getting Started with Luau
What Is Luau?Why Use Luau?Your First Luau CodeType Checking & Error ModesRecap: Introduction to Luau4Working with Functions
Typing Params & Return ValuesTyping Anonymous FunctionsFunctions Returning NothingOptional ParametersDefault Parameter ValuesVariadic FunctionsDefining Function TypesRecap: Typed Functions7Project: Typed Task Manager
Project: The Task ShapeFunction to Add a Task2Core Types
Basic Types: num, str, boolThe 'any' Type: Escape HatchThe 'unknown' TypeNil & Optional TypesType Inference in ActionExplicit Type AnnotationsRecap: Core Types Practice5Aliases, Unions, Intersections
Type Aliases for PrimitivesUnion TypesWorking with Union TypesLiteral TypesIntersection TypesCombining Type AliasesRecap: Advanced Type Combos3Typed Tables: Arrays & Maps
Typed ArraysAdding and Reading ElementsWhat is a Map Type?Declaring and Accessing MapsIterating TablesMixed-Shape TablesMulti-dimensional Typed Arraystable.unpack and VarargsRecap: Arrays and MapsPractice on your own: Online Lua compiler