A Pinch of Random explainer

Puzzle Explainer
#1

The aim of this puzzle: Draw 2 boxes, one above the other, with colors that are randomly generated.

Walkthrough of the solution: pickRandom() randomly selects a value from a list, while color holds a list of different colors. pickRandom(color) will randomly select one color, such as blue or purple.

To make a box have a random color, pickRandom(color) needs to go inside drawBox(), like drawBox(pickRandom(color)). This is called Call Nesting; when a function — pickRandom() — is put inside another function — drawBox(). The function pickRandom(color) runs and a color is selected, this color is then “given” to the drawBox() function.

If, for example, the random color selected was red, the computer would “see” drawBox(red) rather than drawBoxes(pickRandom(color)). This means a red box would be drawn.

To make the 2 boxes be stacked above and below, instead of side by side, you add a newLine() command in between the 2 drawBox(...) commands.

Sample code solution:
(Tap below to reveal)

drawBox(pickRandom(color));
newLine()
drawBox(pickRandom(color));

JavaScript Concepts: Calling Functions, Call Nesting, Identifiers
Grasshopper Concepts: pickRandom(), drawBox()

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