<ul><li>An expression is code that is evaluated and turns into a value. For example, 2+2 evaluates to 4.</li><li>A statement is the smallest piece of code that tells the computer to do something. It is executed, not evaluated.</li><li>Expressions can't exist by themselves, they have to be wrapped in a statement.</li><li>Function expressions and function declarations/statements have a difference in focus, with expressions being more about evaluation and declarations being about execution.</li></ul>

Expression? Statement? What's the difference?

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