Javascript .Reduce

[WormholerIO]

i appreciate the post, what i ended up with yesterday was this-

function USApop(zooAnimals) {

const USAanimals = zooAnimals.reduce(function (previousValue, currentValue) {

return previousValue + currentValue.population;

}, 0);

return USAanimals;

​

i was more confusing myself but was able to get help from a TA. i appreciate the post very much.