Web Development with ReasonML

It’s Your Turn

Create a variant data type called colorSpec that lets you specify a color in one of these ways:

let color1 = White;
let color2 = Black;
let color3 = Gray(0.50); /* Percentage gray as a float */
let color4 = RGB(255, 255, 255); /* Integers for Red, Green, and Blue */

Write a function that converts a colorSpec to a string in the form rgb(r,g,b). Here’s the starting point for your function:

let stringOfColorSpec = (cspec: colorSpec) : string => {
  /* your code here */
};

Here are examples of what it produces:

Js.log(stringOfColorSpec(White)); /* rgb(255,255,255) */
Js.log(stringOfColorSpec(Black)); /* rgb(0,0,0) */
Js.log(stringOfColorSpec(Gray(0.5))); ...