Indexing questions

Help and Feedback Scripting Support
#1

What is the difference between indexing with brackets vs periods because you get the same output

local Table = {["a"] = 3}

print(Table["a"]) -- 3
print(Table.a) -- 3
#2

There isn’t really much of a difference, but there are differences where brackets can be used in special ways, such as using Instances as keys:

local TestTable = {}

TestTable[workspace] = 50

print(TestTable[game:GetService("Workspace")]) -- Prints 50

Without brackets:

local TestTable = {}

TestTable.workspace = 50

print(TestTable[game:GetService("Workspace")]) -- Prints nil
#3

You must use brackets when indexing a key/field which isn’t a string value.