Javascript Tutorial Function Expression KC126tKYhow

Web Reference: In JavaScript, function declarations and function expression refer to different ways of defining functions, their different syntax and how they are handled: They both work the same when you call them. Jul 8, 2025 · The function keyword can be used to define a function inside an expression. You can also define functions using the function declaration or the arrow syntax. How to Use Function Expressions in JavaScript In the previous chapter, you learned to create functions using declarations. Function expressions are the second way to create functions in JavaScript, and they unlock an entirely different way of thinking about code.

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