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Configuration
Variable Config
Variable Type
var
let
const
Data Type
String
Number
Boolean
Array
Object
Null/Undefined
Scope Level
Global Scope
Function Scope
Block Scope
Test Variables
1
Console Output
>
Variable Breakdown
Variable Status
Processing
Key Variable Rules:
Declaration
Initialization
Scope
Reassignment
Type:
Data:
Scope:
Variable Tip
Use const for values that won't change, let for variables that will.