Modern JavaScript from the Beginning - Second Edition - Function Challenges

The video tutorial covers three JavaScript challenges. The first challenge involves creating a function to convert temperatures from Fahrenheit to Celsius, including a bonus task to write it as a one-line arrow function. The second challenge is to create a function that returns the minimum and maximum numbers from an array using Math.min and Math.max. The third challenge involves writing an Immediately Invoked Function Expression (IIFE) to calculate the area of a rectangle. The tutorial concludes with a brief introduction to execution context, setting the stage for more advanced topics.

What is the primary task of the first challenge in the video?

• Create a function to convert Celsius to Fahrenheit

• Create a function to convert Fahrenheit to Celsius

• Create a function to calculate the area of a rectangle

• Create a function to find the maximum number in an array

Which formula is used to convert Fahrenheit to Celsius in the getCelsius function?

• (Fahrenheit * 9/5) + 32

• (Fahrenheit - 32) * 5/9

• (Fahrenheit + 32) * 5/9

• (Fahrenheit / 5) * 9 + 32

What is the purpose of using a template string in the getCelsius function?

• To format the output with a degree symbol

• To change the output to uppercase

• To convert the output to a number

• To add a prefix to the output

What is the main objective of the second challenge?

• Create a function to find the sum of an array

• Create a function to find the min and max of an array

• Create a function to sort an array

• Create a function to find the average of an array

Which JavaScript methods are suggested for finding the minimum and maximum values in an array?

• Math.min and Math.max

• Object.min and Object.max

• Array.min and Array.max

• Number.min and Number.max

What is the role of the spread operator in the minMax function?

• To reverse the order of an array

• To spread array values into separate arguments

• To combine multiple arrays into one

• To filter out duplicate values in an array

What is the main task of the third challenge?

• Create a function to calculate the perimeter of a rectangle

• Create an IIFE to find the maximum number in an array

• Create an IIFE to calculate and log the area of a rectangle

• Create a function to convert Celsius to Fahrenheit

What does IIFE stand for in JavaScript?

• Instantly Invoked Function Expression

• Internally Invoked Function Expression

• Independently Invoked Function Expression

• Immediately Invoked Function Expression

What parameters does the IIFE in the third challenge take?

• Radius and diameter of a circle

• Width and height of a rectangle

• Length and height of a rectangle

• Length and width of a rectangle

What is the formula used to calculate the area of a rectangle in the IIFE?

• Length / Width

• 2 * (Length + Width)

• Length * Width

• Length + Width