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379Function Declaration Syntax
380Calling Functions and Return Values
381Function Expressions
382Anonymous Functions
383Named Function Expressions
384Declaration vs Expression: Hoisting Behavior
385Functions as Values
386Immediately Invoked Function Expressions (IIFE)
387Function Constructor (Rarely Used)
388When to Use Declarations vs Expressions
389Nested Functions and Scope
390Function Naming Conventions
391The Function Statement in Blocks
392Arrow Function Syntax Basics
393Single Expression Arrow Functions
394Arrow Functions with Block Bodies
395Parentheses in Arrow Function Parameters
396Arrow Functions and 'this' Binding
397When Arrow Functions Break Methods
398Arrow Functions with Array Methods
399Arrow Functions Cannot Be Constructors
400Arrow Functions and the Arguments Object
401Returning Object Literals from Arrow Functions
402Choosing Between Arrow and Regular Functions
403Parameters vs Arguments: The Difference
404Positional Parameters
405Too Few Arguments: Undefined Parameters
406Too Many Arguments: Extra Values
407Default Parameter Values
408Default Parameters and Expressions
409Default Parameters Can Reference Earlier Parameters
410The Arguments Object
411Arguments Object Limitations
412Rest Parameters: Collecting Remaining Arguments
413Rest Parameters Must Be Last
414Combining Regular and Rest Parameters
415Parameter Destructuring Basics
416Default Values in Destructured Parameters
417When to Use Each Parameter Pattern
418What Return Statements Do
419Functions Without Explicit Returns
420Early Returns for Control Flow
421Returning Objects and Arrays
422Function Declaration Hoisting
423Function Expression Hoisting Behavior
424Calling Functions Before Declaration
425Hoisting in Block Scope
426Best Practices for Function Ordering

379Function Declaration Syntax
380Calling Functions and Return Values
381Function Expressions
382Anonymous Functions
383Named Function Expressions
384Declaration vs Expression: Hoisting Behavior
385Functions as Values
386Immediately Invoked Function Expressions (IIFE)
387Function Constructor (Rarely Used)
388When to Use Declarations vs Expressions
389Nested Functions and Scope
390Function Naming Conventions
391The Function Statement in Blocks
392Arrow Function Syntax Basics
393Single Expression Arrow Functions
394Arrow Functions with Block Bodies
395Parentheses in Arrow Function Parameters
396Arrow Functions and 'this' Binding
397When Arrow Functions Break Methods
398Arrow Functions with Array Methods
399Arrow Functions Cannot Be Constructors
400Arrow Functions and the Arguments Object
401Returning Object Literals from Arrow Functions
402Choosing Between Arrow and Regular Functions
403Parameters vs Arguments: The Difference
404Positional Parameters
405Too Few Arguments: Undefined Parameters
406Too Many Arguments: Extra Values
407Default Parameter Values
408Default Parameters and Expressions
409Default Parameters Can Reference Earlier Parameters
410The Arguments Object
411Arguments Object Limitations
412Rest Parameters: Collecting Remaining Arguments
413Rest Parameters Must Be Last
414Combining Regular and Rest Parameters
415Parameter Destructuring Basics
416Default Values in Destructured Parameters
417When to Use Each Parameter Pattern
418What Return Statements Do
419Functions Without Explicit Returns
420Early Returns for Control Flow
421Returning Objects and Arrays
422Function Declaration Hoisting
423Function Expression Hoisting Behavior
424Calling Functions Before Declaration
425Hoisting in Block Scope
426Best Practices for Function Ordering

Lesson 403 of 2,723·11. FunctionsPro lesson

Parameters vs Arguments: The Difference

Learn the distinction between function parameters (placeholders) and arguments (actual values passed).

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