const data = require("./data/cah-cards-full.json"); let whites = []; let blacks = []; for (pack of data) { console.log(pack.name); console.log("white cards: " + pack.white.length); if (pack.white) { whites.concat(pack.white); } console.log("black cards: " + pack.black.length); if (pack.white) { blacks.concat(pack.black); } } console.log(whites.length); console.log(blacks.length);