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console.log(0.1 + 0.2); // 0.30000000000000004 console.log(0.1 + 0.2 === 0.3); // false function approxEqual(a, b, eps) { eps = eps || Number.EPSILON; return Math.abs(a - b) < eps; } console.log(approxEqual(0.1 + 0.2, 0.3)); // true const price1 = 0.10; const price2 = 0.20; const totalCents = Math.round(price1 * 100) + Math.round(price2 * 100); console.log(totalCents / 100); // 0.3 (exact) console.log((1.005).toFixed(2)); // '1.00' — beware!
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