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Introduction to JavaScript

As it turns out, JavaScript has some tricks up its sleeve to make our lives easier.

JavaScript has built in functions, which help us do everyday things. We'll learn more about functions later in the course, so don't worry about understanding what they are right now.

Sometimes it's necessary to generate a random number within a program. We can do that with this code:

```
Math.random();
```

This code will return a random number between 0 and 1. JavaScript will generate a random number for us with this code.

To generate a random number between 0 and 50, we could multiply this result by 50, like so:

```
Math.random() * 50;
```

The problem with this is that the answer will most likely be a decimal. Luckily, JavaScript has our back with another built in function called `Math.floor`

. `Math.floor`

will take a decimal number, and round down to the nearest whole number. It is used like this:

```
Math.floor(Math.random() * 50);
```

In this case:

`Math.random`

will generate a random number between 0 and 1.- We then multiplied that number by
`50`

, so now we have a number between 0 and 50. - Then,
`Math.floor`

will round the number down to the nearest whole number.

Let's utilize these two methods to generate a random number between 0 and 100.

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