In this Article we will go through how to round a number to a given number of digits only using single line of code in JavaScript.
This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => `Arrow Function`

.

Let's define this short function:

```
const round = (n, decimals = 0) => Number(`${Math.round(`${n}e${decimals}`)}e-${decimals}`);
```

```
round(1.234567, 3); // 1.235
round(1.234567, 4); // 1.2346
```

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