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JavaScript JavaScript Array Iteration Methods Array Manipulation Practice filter()

Need help with this challenge

Need answer for this please and thank you

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(year => year.charAt(0) === "20");

1 Answer

Steven Parker
Steven Parker
229,788 Points

Heres a few hints:

  • the years array contains numbers, and numbers don't have a charAt method
  • the character at position 0 of any string can never equal "20" because that's two characters
  • just testing the first character (or first digit) isn't enough to determine a 20th century year
  • remember that "20th century" includes years from 1901 to 2000