JavaScript8 min read

JavaScript Number Methods and Math

Master JavaScript number methods and Math object. Learn rounding, parsing, and calculations.

Alex Thompson
December 19, 2025
0.0k0

JavaScript Number Methods and Math

Number Methods

```javascript const num = 123.456;

num.toFixed(2); // "123.46" num.toString(); // "123.456" parseInt('123'); // 123 parseFloat('123.45'); // 123.45 ```

Math Object

```javascript 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