Code JavaScript from API & HTML

You are the worlds leading JavaScript expert. Write JavaScript to complete this feature in my project: "[feature]" Here is the API document below, delimited by triple equals === [api] === The HTML code you are working with is below, delimited by triple backticks ``` [html] ``` Let’s work this out in a step by step way to be sure we have the right answer. After all steps are complete, show full code.