Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript Array Iteration Methods Combining Array Methods Combining filter() and map()

Posted by Brian Johnson
.a{fill-rule:evenodd;}techdegree seal-36
Brian Johnson
Front End Web Development Techdegree Graduate 20,818 Points

Please help me figure this out without interpolation

I need a little guidance on this one. I think I go wrong on the map method.

app.js 
const todos = [
    {
        todo: 'Buy apples',
        done: false
    },
    {
        todo: 'Wash car',
        done: true
    },
    {
        todo: 'Write web app',
        done: false
    },
    {
        todo: 'Read MDN page on JavaScript arrays',
        done: true
    },
    {
        todo: 'Call mom',
        done: false
    }
];
let unfinishedTasks;

// unfinishedTasks should be: ["Buy apples", "Write web app", "Call mom"]
// Write your code below
let unfinishedTasks = todos
    .filter(task => task.done === false)
    .map(task => task:todo);

console.log(unfinishedTasks);

1 Answer

Thayer Y
Thayer Y
29,789 Points

your code is fine just change 2 things 

let unfinishedTasks = todos   // delete the let because you already declared it.
.map(task => task:todo)  // change the colon : to dot.
Brian Johnson
.a{fill-rule:evenodd;}techdegree seal-36
Brian Johnson
Front End Web Development Techdegree Graduate 20,818 Points

Thanks Thayer I was so close too.