Exercise Meta

index.js

class ExerciseMeta {
  constructor(metaArr) {
    // ... noise
  }

  format(type, value) {
    // ... noise
    return ["somevalue"]
  }

  getFormatted({ separator }) {
    // ... noise
    const strCombinations = ["array", "of", "values"];
    const finalString = strCombinations.join(separator); // this is what's not working
    return finalString;
  }
}

formatExerciseMeta = (meta, separator) => {
  return new ExerciseMeta(meta).getFormatted({ separator });
};


const Component = () => {
  return (
    <Text>
      {formatExerciseMeta(
        exercise.workoutMeta,
        <Icon type="ionicon" name="ios-close" />
      )}
    </Text>
  );
};