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JavaScript JavaScript Array Iteration Methods Array Manipulation Practice filter()

filter method on century20, keep getting error

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

// century20 should be: [1989, 2000, 1999, 1973] // Write your code below const newCentury20 = years.filter(year => year.charAt(0)===2000){ return century20.push('newCentury20'); }

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

// century20 should be: [1989, 2000, 1999, 1973]
// Write your code below
 const newCentury20 = years.filter(year => year.charAt(0)===2000){
   return century20.push('newCentury20');
 }

2 Answers

Hi Gata Gbemou

We use charAt() to get a specified index in a string. We don't have any string in our array. Also no need to push into a new variable. The challenge asks to store in century20.

So you just have to return to the years that come in the twentieth century. So our condition will return all years less than equal to 2000.

Like this:

century20 = years.filter(year => year <= 2000);

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

// century20 should be: [1989, 2000, 1999, 1973] // Write your code below const newCentury20 = years.filter(year => year.charAt(0)===2000){ return century20.push('newCentury20'); }