JavaScript Function Declarations: Three Ways to Define Functions

2025-07-03
JavaScript Function Declarations: Three Ways to Define Functions

This article delves into the nuances of JavaScript's three function declaration styles: function declarations, function expressions, and arrow functions. Function declarations are hoisted; function expressions can be named, but their names aren't bound to the scope; arrow functions are concise but lack `this` binding, constructor capabilities, and generator functionality. The choice depends on whether you're using the `this` keyword, need generator functions, and prioritize code readability. A flowchart is provided to guide developers in choosing the appropriate function declaration style for different situations.

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