gistfile1.txt

 for (const colorArray of arrayOfColors) {
            fs.writeFileSync(`colorArray_${colorArray[0].colorKey}.json`, JSON.stringify(colorArray, null, 2));
            console.log(`owner ${colorArray[0].ownerID} is not null: ${colorArray[0].ownerId !== null}`);
            if (colorArray.every(property => property.ownerId === colorArray[0].ownerId) && colorArray[0].ownerId !== null) {
                for (const property of colorArray) {
                    property.isMonopoly = true;
                }
            } else {
                for (const property of colorArray) {
                    property.isMonopoly = false;
                }
            }
        }