Practice Quiz on Functions

Create a variable called "message" and assign an empty function to it.

const message = function(){ }

Create a variable called "diceRoll" and assign a function that returns the number 4.

const diceRoll = function(){
  return 4;
}

Create a variable called "message" and assign a function that returns the string "Hello there"

const message = function(){
  return "Hello there";
}

Create a variable called "message" and assign a function that takes an argument called "name". Return the string "Hello (insert person's name)".

const message = function(name){
  return "Hello " + name;
}

Create a variable called "sum" and assign a function that takes an argument called "num". Return the sum of the num argument and 10.

const sum = function(num){
  return num + 10;
}

Create a variable called "calculateTip" and assign a function that takes an argument called "bill". Return the result of adding 20% to the bill (1.2 with no zeros).

const calculateTip = function(bill){
  return bill * 1.2;
}

Create a variable called "sum" and assign a function that takes two arguments: "num1" and "num2". Return the sum of these two arguments.

const sum = function(num1, num2){
  return num1 + num2;
}

Create a variable called "message" and assign a function that takes two arguments: "name" and "location". Return the message "Hello name from location" (replacing name and location with the arguments).

const message = function(name, location){
  return "Hello " + name + " from " + location;
}

Create a variable called "calculateTip" and assign a function that takes two arguments: "bill" and "tip". Return the result of calculating the tip.

const calculateTip = function(bill, tip){
  return bill * tip;
}

Write the code to call this function: const message = function(){ return "Hey there"; }

message();

Write the code to call this function, but supplying the name "John Doe". const greeting = function(name){ return "Hi " + name; }

greeting("John Doe");

Write the code to call this function, but supplying the numbers: 5 and 10. const sum = function(num1, num2){ return num1 + num2; }

sum(5, 10);

Write the code to call this function, but supplying the name "John" and the location "Berkeley". const hello = function(name, location){ return "Hi " + name + " from " + location; }

hello("John", "Berkeley");