JavaScript9 min read
JavaScript Number Methods and Math
Master JavaScript number methods and Math object. Learn rounding, parsing, and calculations.
Alex Thompson
Dec 20, 2025
3,573160
JavaScript Number Methods and Math
Number Methods
const num = 123.456;
num.toFixed(2); // "123.46"
num.toString(); // "123.456"
parseInt('123'); // 123
parseFloat('123.45'); // 123.45
Math Object
Math.max(5, 10); // 10
Math.min(5, 10); // 5
Math.round(4.7); // 5
Math.floor(4.7); // 4
Math.ceil(4.2); // 5
Math.random(); // 0 to 1
Math.abs(-5); // 5
Math.sqrt(16); // 4
Math.pow(2, 3); // 8
Key Takeaway
Number methods format numbers. Math object provides calculations. Essential for numeric operations.
#JavaScript#Numbers#Math#Beginner