A Thing or Two explainer


#1

The aim of this puzzle: Use a ternary operator in place of an if…else statement.

Walkthrough of the solution:
To review, an if…else statement takes this format:

if (thisIsTrue) {
  doThis
} else {
  doThisInstead
}

A ternary operator replaces this format with something much shorter:

isThisTrue ? doThis : doThisInstead

The code before the ? is the test. If the test returns ‘true’, then the code after the ? will execute. If the test returns false, then the code after the : will execute. Ternary operators are useful in how they use fewer lines of code than an if…else statement, however they can be more difficult to read.

The x variable uses the pickRandom() function to choose between the number 1 and 2.
There is a print() with a ternary inside of it. The test x === 1 will check if the number is equal to 1. If this is true, it will return one to the print() statement. If this is false, it will return two.

Sample code solution:
(Tap below to reveal)

let x = pickRandom(2);
print(x === 1 ? 'one' : 'two');
print(x);

JavaScript Concepts: Ternary Statement, Variable Assignments with Let, Equality Operator

Grasshopper Concepts: print()