Sometimes, we want to generate a random number of fixed length using JavaScript.

In this article, we’ll look at how to generate a random number of fixed length using JavaScript.

### How to generate a random number of fixed length using JavaScript?

To generate a random number of fixed length using JavaScript, we can use the `Math.floor`

and `Math.random`

methods.

For instance, we write

```
console.log(Math.floor(100000 + Math.random() * 900000));
```

to generate a 6 digit number with

```
100000 + Math.random() * 900000
```

Then we get rid of the decimals by returning the floor of the number with `Math.floor`

.

### Conclusion

To generate a random number of fixed length using JavaScript, we can use the `Math.floor`

and `Math.random`

methods.