<ul><li>A variable is a container for storing values like numbers used for calculations or strings used as part of a sentence.</li><li>Variables are crucial for executing code, as they store and retrieve data.</li><li>Without variables, tasks would be more cumbersome, requiring repetitive user input.</li><li>Variables can hold various data types like strings, numbers, boolean values, arrays, and objects.</li><li>JavaScript's 'let' keyword offers improvements over 'var' for variable declaration and scoping.</li><li>Initializing variables with values and updating them is essential in programming tasks.</li><li>Naming variables following certain rules is important; variables can be named creatively but must adhere to restrictions.</li><li>Data types like numbers, strings, booleans, arrays, and objects can be stored in variables.</li><li>JavaScript allows dynamic typing, eliminating the need to specify data types during variable declaration.</li><li>Using 'const' ensures a variable's value remains constant, useful for declaring unchanging values.</li></ul>

공부하면서 익히는 변수 기초: 값 저장과 호출 원리(Basic variables you learn while studying: Value storage and calling…

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