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JavaScript JavaScript Array Iteration Methods Array Manipulation Practice reduce()

Posted by Michael Slattery
Michael Slattery
Courses Plus Student 4,333 Points

Is there a correct code of video explaination of the correct code for this chalange?

?

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

// numberOf503 should be: 3
// Write your code below

1 Answer

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

Like many things in programming there's not just one "correct" way to solve this. Many string functions (and a few other ways) can be used to determine which numbers have the desired area code, and will all pass the challenge.