The Array Object in JavaScript has a built-in reduce method that iterates over each value in an array and returns a value. It is very useful when calculating sums. Write a function that takes an array ...

Methods that accesses and returns some representation of the array. concat: Returns a new array with the combination of this array and other array / values.; includes: returns a true if the value is ...

JavaScript’s arrays can hold heterogeneous types, change size on the fly, and readily insert or remove elements. Traditional methods like slice, splice, and push/pop do this by operating on the ...

Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...

Arrays are wonderful and a very particular type in JavaScript. There are many useful built-in properties and methods that will help you resolve any task which involves this kind of type. Today, we ...

You will create arrays where each element of the array is an object. Accessing this array is very similar to accessing an array of simple data types. You will write three classes: Book.java which ...