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javascript/snippets/round.md

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+---
+title: Round number to given precision
+type: snippet
+tags: [math]
+cover: yellow-white-mug-1
+dateModified: 2020-10-22T20:24:30+03:00
+---
+
+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}`);
+```
+
+```js
+round(1.005, 2); // 1.01
+```