Search Array in JavaScript

Question

I need to sort through a data set which as you can see I\'ve assigned to the records variable. From that data I need to see if the zip code exists. If the zip code does not exis

Answer 1

You can simplify your for loop like so:

 matchedZip = false;

 for(i in numbersArray) {
    if (numbersArray[i] === zipCode) {
       matchedZip = true;
    }
 }

 if ( ! matchedZip) {
    numbersArray.push(zipCode);
 }

Try plugging that into your while loop. If you have the array push inside of the for loop you're going to end up pushing each zip code in every time there is not a match.