JavaScript Variables and Operators

JavaScript utilizes let, const, and var for variable declarations, each with distinct block or global scope properties. Scope determines variable accessibility throughout a program, ranging from global to function-specific levels. Additionally, operators facilitate data manipulation and calculations. In Java, relational operators compare two operands to determine if values are equal or if one exceeds another. These operators are essential for decision-making logic, conditional expressions, and loops within Java development and technical interviews.