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30-seconds-of-code/snippets/round.md
2017-12-17 17:55:51 +02:00

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### round
Rounds a number to a specified amount of digits.
Use `Math.round()` and template literals to round the number to the specified number of digits.
Omit the second argument, `decimals` to round to an integer.
```js
const round = (n, decimals=0) => Number(`${Math.round(`${n}e${decimals}`)}e-${decimals}`);
// round(1.005, 2) -> 1.01
```