26 lines
551 B
Markdown
26 lines
551 B
Markdown
---
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title: Value to safe integer
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tags: math
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expertise: beginner
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cover: blog_images/mask-quiet.jpg
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firstSeen: 2018-01-08T17:12:46+02:00
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lastUpdated: 2020-10-22T20:24:44+03:00
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---
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Converts a value to a safe integer.
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- Use `Math.max()` and `Math.min()` to find the closest safe value.
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- Use `Math.round()` to convert to an integer.
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```js
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const toSafeInteger = num =>
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Math.round(
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Math.max(Math.min(num, Number.MAX_SAFE_INTEGER), Number.MIN_SAFE_INTEGER)
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);
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```
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```js
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toSafeInteger('3.2'); // 3
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toSafeInteger(Infinity); // 9007199254740991
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```
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