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JavaScript JavaScript Array Iteration Methods Combining Array Methods Method Chaining

Pierre Ramirez
Pierre Ramirez
5,632 Points
Posted by Pierre Ramirez
Pierre Ramirez
5,632 Points

Attempting to interpolate but it's not registering correctly

What I have

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

So since it wasn't working I just used below and it worked but I'd like the above to work too.

displayYears = years.filter(year => year >= 2001).map(year => year+' A.D.');

app.js 
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

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

1 Answer

Matthew Long
Matthew Long
28,407 Points
Matthew Long
Matthew Long
28,407 Points

You have everything correct, except you need to use backticks instead of single quotes for JavaScript string interpolation:

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

displayYears = years.filter(year => year >= 2001).map(year => `${year} A.D.`);
Pierre Ramirez
Pierre Ramirez
5,632 Points
Pierre Ramirez
Pierre Ramirez
5,632 Points

Ahhhhh.....thank you so much. It works!