Variable - A named container for storing data values., String - Textual data (e.g., "Hello").Textual data (e.g., "Hello")., Array - Ordered collection of elements stored in a single variable.Ordered collection of elements stored in a single variable., let - Keyword for declaring a variable with block scope, can be reassigned., Comparison Operator - Compares two operands (e.g., `>`, `<`, `===`).,

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