The aim of this puzzle: Use an if-else statement to simplify the Flip a Coin puzzle.
Walkthrough of the solution: This puzzle starts out very similar to the original Flip a Coin puzzle, but instead of 2 if statements, there’s an if-else statement.
An if-else statement is really just a regular if statement with another set of curly brackets. That second block {} of code will only run if the code in the if statement parentheses is false. So, the if statement checks the parentheses and if it’s true the first code block runs, and if it’s false the second code block runs. Only one will run, not both or neither.
In this puzzle, there are only two categories that the answer can be: heads or tails. If it’s not ‘heads’ then it must be ‘tails’. That means we can just check for ‘heads’ in the first if statement and if it doesn’t pass the test, the else block will run and we know the answer is ‘tails’. So in the else block, we just need to add a drawBoxes() call with a string.
Sample code solution:
(Tap below to reveal)
var answer = pickRandom([
'heads',
'tails'
]);
print(answer);
if (answer === 'heads') {
drawBoxes('gwg ggg gwg');
} else {
drawBoxes('rrr wrw wrw');
}
JavaScript Concepts: Binary Expression (===), Calling Functions, Conditionals (if-else statement), Data Structures (Arrays), Identifiers, Variable Declaration
Grasshopper Concepts: pickRandom(), print()
