Learn
Getting Started with JavaScript
Built-in Objects
There are several built-in objects that provide a wide range of functionality. We already used the console
object a lot.
Let's take a look at the Math
object:
Math Object
The Math
object provides mathematical operations and constants. It has properties and methods for performing various calculations. The most common Math
object methotds are:
Math.random()
- This method returns a random number between 0 (inclusive) and 1 (exclusive)Math.floor()
- Rounds the number down to the nearest whole number.
You can also combine multiple object methodes like so:
Instructions
1.
Print the value of Math.PI
to the console.
2.
Print the result of the square root of 16 using the Math.sqrt()
method.
Stuck? Get a hint
Square root of 9 is used like:
Math.sqrt(9)
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