Instructions

In this exercise you'll be writing code to help a sign company create custom messages for their signs.

1. Build an occasion sign

Implement the function buildSign(occasion, name) that accepts a string as the occasion parameter and a string holding someone's name as the name parameter. The two parameters will be embedded into a template string to output the message on the sign.

2. Build a birthday sign

Implement the function buildBirthdaySign(age) that accepts an age and based on the age will determine part of the message on the sign. If the age is 50 or older, the sign will refer user as mature, else it will refer them as young. The exact expected output is shown below:

3. Build a graduation sign

Implement the function graduationFor(name, year) which takes a name as a string parameter and a year as a number parameter and uses string interpolation to create a phrase for a sign that uses a newline to separate the two lines of the message.

4. Compute the cost of a sign

Implement the function costOf(sign, currency) which takes a string that holds the contents of the sign and a string that represents the currency. The sign has a base price of 20 in the given currency. Additionally each letter costs 2. (Whitespaces are included in the calculation.) The phrase returned includes the cost to create the sign, written with two digits after the decimal point, followed by the currency string.