Chapter 4Functions
In the last chapter, we covered arrays, logic, and loops. In this chapter, we’re going to look at functions. A function is a chunk of code that is almost like a small, self-contained mini program that can be referenced by a name. They can help to reduce repetition and make code easier to follow.
In this chapter, we’ll be covering these topics:
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defining functions―function declarations, function expressions, and
Function()constructors -
invoking a function
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return values
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parameters and arguments
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scope―global and local
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hoisting―variables and functions
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callbacks―functions as a parameter
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project―we’ll be using functions to make it simpler to understand the Quiz Ninja code
In JavaScript, functions are considered to be just ...
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