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JavaScript JavaScript Array Iteration Methods Array Manipulation Practice filter()

Code return true instead of filtered array

I am trying the following challenge but I cannot seem to pass it, when I try

const years = [1989, 2015, 2000, 1999, 2013, 1973, 2012];
let century20;

years.filter((yrs)=> {
  return century20 = yrs <= 2000
});

console.log(century20);

it gives me a boolean,but when I do

const years = [1989, 2015, 2000, 1999, 2013, 1973, 2012];
 let century20 = years.filter(year=> {
   if(year <= 2000){
    console.log(year);
   }
 });

it works giving me a new array, but the challenge doesn't require the latter example.

app.js
const years = [1989, 2015, 2000, 1999, 2013, 1973, 2012];
let century20;

// century20 should be: [1989, 2000, 1999, 1973]
// Write your code below

years.filter(yrs=> century20 = yrs <= 2000)

1 Answer

You are setting century20 in the wrong place. The filter command needs a function which returns a boolean value for each element of the array. Remove the 'century20 =' from after the return and the function will now test to see if the year is <=2000 and return true if it is and false if it isn't. Then filter will filter the values you want. This is what you should store in century20. You need:

century20 = years.filter((yrs)=> {

return yrs <= 2000

});