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JavaScript JavaScript Array Iteration Methods Combining Array Methods Method Chaining

Posted by Zach Freitag
Zach Freitag
20,341 Points

Using the filter and map methods on the years array, create array of display strings for each year in the 21st century.

I'm probably over complicating this, just trying to bring together everything I've learned.

My code:

const years = [1989, 2015, 2000, 1999, 2013, 1973, 2012];
let displayYears;

// displayYears should be: ["2015 A.D.", "2013 A.D.", "2012 A.D."]
// Write your code below

const AD = year => `${year.toFixed(years + '' + 'A.D.')}`;
displayYears = years.filter(number => number >= 2001).map(AD);

1 Answer

Zach Freitag
Zach Freitag
20,341 Points

So I simplified it in workspaces and this works:

displayYears = years
  .filter(year => year >= 2001)
  .map(year => `${year} A.D.`);

console.log(displayYears);