19 lines
400 B
Markdown
19 lines
400 B
Markdown
---
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title: round
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tags: math,intermediate
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---
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Rounds a number to a specified amount of digits.
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- Use `Math.round()` and template literals to round the number to the specified number of digits.
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- Omit the second argument, `decimals` to round to an integer.
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```js
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const round = (n, decimals = 0) =>
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Number(`${Math.round(`${n}e${decimals}`)}e-${decimals}`);
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```
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```js
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round(1.005, 2); // 1.01
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```
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