Problem solving

Solve the following problems.

Problem solving means taking things one step at a time, and often going beyond what you already know. Neither of these are easy.

Taking things one step at a time means stopping, taking a breath, evaluating your thoughts, testing what you have, and organizing your next step.

Often, you won't yet have the tools to solve a problem. This happens in the real world, and it means doing research.

These two things are crucial in the mindset of a developer and they are why developers get paid the dollaroonies.

printGreeting

Write a function called printGreeting with a parameter name that returns a greeting with the argument interpolated into the greeting.

console.log(printGreeting("Slimer"));

=> Hello there, Slimer!

reverseWordOrder

Write a function reverseWordOrder that accepts a single argument, a string. The function should return a string with the order of the words reversed. Don't worry about punctuation.

console.log(reverseWordOrder("Ishmael me Call"));

=> "Call me Ishmael"

console.log(reverseWordOrder("I use Lâncome on my comb"));

=> "comb my on Lâncome use I"

Hints: is there a method that can split a string into an array of strings? Can you use a loop creatively to print array elements in a certain order?

calculate

Write a function called calculate.

This function should take three arguments, two numbers and a string.

Name the parameters num1, num2, and operation.

If the function receives the string "add" for the operation parameter, it will return the sum of num1 and num2.

If the function receives the string "sub" for the operation parameter, it will return num1 minus num2.

Do the same thing for multiplication "mult", division "div", and exponent "exp" (where num2 is the exponent of num1).

console.log(calculate(4, 3, "sub"));

=> 1

console.log(calculate(4, 3, "exp"));

=> 64

printConsecutives

Write a function printConsecutives that can take an array of any length, and print groups of three numbers where three consecutive numbers increase by 1.

printConsecutives([1, 2, 3, 9, 8, 0, 44, 45, 46, 2, 9]);

=> 1 2 3

=> 44 45 46

printConsecutives([0, 0, 0, -3, -2, -1, 0, 1, 2, 3]);

-3 -2 -1

-2 -1 0

-1 0 1

0 1 2

1 2 3

letterReverse

Write a function letterReverse that accepts a single argument, a string. The function should maintain the order of words in the string but reverse the letters in each word. Don't worry about punctuation.

console.log(letterReverse("Luke I am your father"));

=> "ekuL I ma ruoy rethaf"

console.log(letterReverse("Aren't you a little short for a storm trooper"));

=> "t'nerA uoy a elttil trohs rof a mrots repoort"

Hungry for More?

1. Go back to yesterday's labs if you didn't finish - focus on morning: bank account, checkerboard and fibbonacci and then any problems you want from the afternoon - if you feel confident skip right to HFM (Hungry for More) section
2. Get started on today's afternoon lab!