Lua

Question 1

Lua was created on

Answer 1

1993

Question 2

Creator of Lua

Answer 2

Roberto Ierusalimschy, Luiz Henrique de Figueiredo, and Waldemar Celes

Question 3

Reason Why Lua was made

Answer 3

Due to Brazil’s strict trade barriers (1977–1992)—known as the “market reserve”
policy

Question 4

two domain-specific languages for its engineering applications at Petrobras that laid the ground work for the creation Lua

Answer 4

● DEL – A data-entry language
● SOL – A configurable report generator for lithology profiles

Question 5

The name Lua came from

Answer 5

The Portuguese word for “moon”

Question 6

Latest Version of Lua

Answer 6

Version 5.4.7 (June 2024)

Question 7

Version that added Constants

Answer 7

Version 5.4 (June 2020)

Question 8

Application Areas of Lua

Answer 8

Game Development
Embedded Systems & IoT
Web Development
Artificial Intelligence (AI) & Machine Learning
System Administration & Scripting

Question 9

Characteristics of Lua

Answer 9

Fast
Portable
Embeddable
Powerful (but Simple)
Small
Free

Question 10

Lua Programming Paradigm

Answer 10

Multi - paradigm - procedural, functional and object oriented programing

Question 11

Lua Type System

Answer 11

Dynamically Type and Weakly Typed

Question 12

Lua is weakly typed Because

Answer 12

of its automatic type conversion

Question 13

Memory Management in Lua

Answer 13

It has an automatic garbage collection

Question 14

Translator Program for Lua

Answer 14

Lua Translator
Bytecode compiler - luac
JIT compilation - LuaJIT

Question 15

How to make constant in Lua

Answer 15

local PI <const> = 3.14159.</const>

Question 16

Make a variable y with a value 7

Answer 16

y = 7

Question 17

Make a local Variable y with value 7

Answer 17

local y = 7

Question 18

Used to differentiate the value from having some data or no data.

Answer 18

nil

Question 19

Represents arbitrary C data.

Answer 19

userdata

Question 20

Lua’s only Data Structure Available

Answer 20

Table

Question 21

Array in Lua

Answer 21

array = {10, 20, 30, 40, 50}
print(array[1])

Question 22

Record in Lua

Answer 22

record = {name = “John”, age = 30 }
print(record.name)

Question 23

List in Lua

Answer 23

list = {“banana”, “apple”, “cherry”}

Question 24

Sets in Lua

Answer 24

set = {}
set[“apple”] = true
set[“banana”] = true

Question 25

Trees in Lua

Answer 25

tree = { value = 1, left = { value = 2, left = nil, right = nil}, right = {value = 3, left = nil, right = nil} }