The aim of this puzzle: Edit the string to add another row of rainbow colors.
Walkthrough of the solution: If you have an array called list, using list.push(...) will take whatever is in the parentheses and add it to the end of the array. Your array is called patternArray which contains a list of strings. The for loop takes each string and lets drawBoxes draw it. So, to create a rainbow row and add it to patternArray, you need to .push() the string 'roygbiv' which are the first letter of each color of the rainbow.
Sample code solution:
(Tap below to reveal)
patternArray.push('roygbiv');
for(var element of patternArray){
drawBoxes(element);
}
JavaScript Concepts: Code Block (for loop), Calling Functions, Identifiers, Loops, Variable Declaration, Member Expression
Grasshopper Concepts: drawBoxes()