= Operator
From Legacy Roblox Wiki
(Redirected from Assignment Operator)
The '=' operator is used to assign a value to a variable and a value to a property.
Where it is used
This operator is used in many things such as variable and property assignments.
Example
This code would set the part named "Part"'s Anchored property to false:
Workspace.Part.Anchored = false
myVariable = 1337