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![Daniel Balabis](https://secure.gravatar.com/avatar/164573bfc8efec148a0474d8ee06dd3a?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Daniel Balabis
Full Stack JavaScript Techdegree Student 4,254 PointsCan I use an addition assignment operator to find the finalScore?
//I'm trying to get this code to run.
var score = 10; var bonusPoints = 100; var finalScore; finalScore += score + bonusPoints;
console.log(finalScore);
//Should output 110 but instead receive the NaN error, is my code reading my variables as a string?
1 Answer
![vikrant kaushal](https://secure.gravatar.com/avatar/cb9638bd9b5edc76aba9e92a5290ea4f?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
vikrant kaushal
Front End Web Development Techdegree Student 2,558 PointsI think because it has to do with the +=
Ken Stone
29,703 PointsKen Stone
29,703 PointsTry:
finalScore = score + bonusPoints;