JS-011
Educational JavaScript lesson graphic for Value vs Variable: Understand the difference between a variable and the value stored inside it
Beginner2 min~2 min read#variables#values#memory

Value vs Variable

The box is not the thing.

Goal

Understand the difference between a variable and the value stored inside it.

Explanation

  • A variable and a value are not the same thing.
  • A variable is a place where data is stored.
  • A value is what lives inside the variable.
  • The same variable can hold different values during the program's execution.
  • Understanding this difference makes code easier to read and write.

Analogy

The box is the variable. The object inside the box is the value. The box is not the object — it only stores it.

Code

let name = "Vitalii";

console.log(name);

Result: Vitalii

Common mistake

Beginners often call the value a variable. In reality, the variable only holds the value.

Remember

  • ✦ A variable is a container.
  • ✦ A value is the data inside the container.
  • ✦ Variables and values are different concepts.

Quick Quiz

What is the variable in let name = "Vitalii"?

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