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JavaScript JavaScript Array Iteration Methods Array Manipulation Practice reduce()

dwayne lewis
PLUS
dwayne lewis
Courses Plus Student 5,712 Points
Posted by dwayne lewis
dwayne lewis
Courses Plus Student 5,712 Points

today ive been getting a error message stating that i removed code when i attempt the challenge.

please help

app.js 
const phoneNumbers = ["(503) 123-4567", "(646) 123-4567", "(503) 987-6543", "(503) 234-5678", "(212) 123-4567", "(416) 123-4567"];
let numberOf503 = name => name.charAt(1) === "5";

const s503 = phoneNumbers.filter(numberOf503);

console.log(s503);
// numberOf503 should be: 3
// Write your code below

1 Answer

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

Here's a few hints:

  • write all the new code below the comment that says "// Write your code below"
  • the final value (the count) should go in "numberOf503"
  • while there are other ways to do it, this challenge expects you to use "reduce"