💡JavaScript functions allow you to store and reuse blocks of code.
🔑Functions can have parameters, which are variables that store values passed to the function.
🚀Using functions improves code readability and reusability.
🔍Function expressions are an alternative way to define functions.
💪Understanding function concepts is essential for every JavaScript developer.
What is the difference between a function declaration and a function expression?
—A function declaration is a statement that defines a named function, while a function expression assigns a function to a variable.
How do I pass parameters to a function?
—You can define parameters inside the parentheses of a function declaration. When calling the function, you can pass values for these parameters.
Can a function be called without passing any arguments?
—Yes, a function can be called without passing any arguments. In this case, the parameters inside the function will have undefined values.
Can a function return a value?
—Yes, a function can return a value using the return keyword. The returned value can be assigned to a variable or used directly in the code.
What is the difference between a parameter and an argument?
—A parameter is a variable defined in a function declaration, while an argument is a value passed to a function when calling it.
00:00JavaScript functions allow you to store and reuse blocks of code.
06:06Using functions improves code readability and reusability.
08:51Function expressions are an alternative way to define functions.
12:54A function declaration is a statement that defines a named function, while a function expression assigns a function to a variable.
17:02You can define parameters inside the parentheses of a function declaration.
21:26A function can be called without passing any arguments, in which case the parameters inside the function will have undefined values.
22:56A function can return a value using the return keyword.
27:49A parameter is a variable defined in a function declaration, while an argument is a value passed to a function when calling it.
