Array Programming Flashcard

Front

What is an array in programming?

Back

An array is a data structure that can store a collection of data values of the same type, allowing for efficient data management and access.

Front

How does an array demonstrate the concept of abstraction in programming?

Back

An array groups multiple data values into a single structure that can be managed and accessed with an index.

Front

What does the length property of an array represent?

Back

The length property returns the number of elements in the array.

Front

How do you access the first element of an array named 'fruits'?

Back

You access the first element using fruits[0].

Front

What is the syntax to change the second element of an array named 'fruits' to 'Blueberry'?

Back

The syntax is: fruits[1] = 'Blueberry';

Front

What does fruits[2] return if fruits = ['Apple', 'Banana', 'Cherry', 'Date']?

Back

fruits[2] returns 'Cherry'.

Front

What is the primary purpose of an array in programming?

Back

The primary purpose of an array is to store a collection of data values of the same type.

Front

How do you add a new element to the end of an array in JavaScript?

Back

You can add a new element using the push() method, e.g., fruits.push('Fig').

Front

What is the difference between a one-dimensional array and a multi-dimensional array?

Back

A one-dimensional array is a linear list of elements, while a multi-dimensional array is an array of arrays, allowing for more complex data structures.

Front

What will be the output of console.log(fruits.length) if fruits = ['Apple', 'Banana', 'Cherry']?

Back

The output will be 3.